:Product: 3-Day Forecast
:Issued: 2026 Feb 01 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 01-Feb 03 2026 is 1.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 01-Feb 03 2026

Feb 01 Feb 02 Feb 03
00-03UT 1.67 1.67 1.67
03-06UT 1.67 1.33 1.33
06-09UT 1.67 1.00 1.00
09-12UT 1.33 1.00 1.00
12-15UT 1.33 0.67 0.67
15-18UT 1.33 1.33 1.33
18-21UT 1.33 1.67 1.67
21-00UT 1.33 1.67 1.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 01-Feb 03 2026

Feb 01 Feb 02 Feb 03
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 01-Feb 03 2026

Feb 01 Feb 02 Feb 03
R1-R2 35% 35% 35%
R3 or greater 5% 5% 5%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 04 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 04-Feb 06 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 04-Feb 06 2026

Feb 04 Feb 05 Feb 06
00-03UT 1.67 2.00 4.67 (G1)
03-06UT 1.67 2.00 4.00
06-09UT 1.33 1.67 3.67
09-12UT 1.33 1.33 3.67
12-15UT 1.33 1.33 3.67
15-18UT 1.33 3.00 4.00
18-21UT 1.33 4.33 4.00
21-00UT 1.67 5.00 (G1) 4.00

Rationale: G1 (Minor) storming is likely on 05-06 Feb due to the arrival
of the CME associated with the 01/2357 UTC X8.1 flare from Region 4366.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 04-Feb 06 2026

Feb 04 Feb 05 Feb 06
S1 or greater 30% 30% 30%

Rationale: The greater than 10 MeV proton flux has a chance to exceed S1 (Minor) levels over 04-06 Feb due to the high eruptive potential of
Region 4366. The risk of a proton event will increase as the region
moves into a more favorable magnetic connection point in the Suns
western hemisphere.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at Feb 03 2026 1408 UTC.

Radio Blackout Forecast for Feb 04-Feb 06 2026

Feb 04 Feb 05 Feb 06
R1-R2 80% 80% 80%
R3 or greater 40% 40% 40%

Rationale: Moderate to high solar activity is expected due to M-class
flaring (R1-R2, Minor-Moderate) for the next three days with a high
chance for X-class flares (R3-Strong or greater) due to expected further activity from AR 4366.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 07 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 07-Feb 09 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 07-Feb 09 2026

Feb 07 Feb 08 Feb 09
00-03UT 4.00 4.67 (G1) 3.33
03-06UT 2.67 3.67 2.00
06-09UT 1.67 3.33 2.00
09-12UT 1.67 3.33 3.00
12-15UT 2.33 2.00 3.00
15-18UT 2.67 3.33 3.33
18-21UT 3.33 3.33 3.67
21-00UT 4.00 3.67 3.67

Rationale: G1 (Minor) geomagnetic storms are likely on 08 Feb due to the anticipated arrival of the CME associated with the 03 Feb filament
eruption, coupled with a new negative polarity CH HSS.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 07-Feb 09 2026

Feb 07 Feb 08 Feb 09
S1 or greater 25% 25% 25%

Rationale: There is a chance for S1 (Minor) solar radiation storms on
07-09 Feb due to the magnetic complexity and dynamic of the active
regions on the visible disk.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 07-Feb 09 2026

Feb 07 Feb 08 Feb 09
R1-R2 80% 80% 80%
R3 or greater 35% 35% 35%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are expected, with a
chance for R3 (Strong) or greater levels on 07-09 Feb due to the
magnetic complexity and dynamic of the active regions on the visible
disk.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 10 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 10-Feb 12 2026 is 2.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 10-Feb 12 2026

Feb 10 Feb 11 Feb 12
00-03UT 2.67 1.67 1.67
03-06UT 2.67 1.67 2.00
06-09UT 2.67 1.67 1.67
09-12UT 1.67 1.00 1.33
12-15UT 1.67 1.33 0.67
15-18UT 0.67 1.33 1.00
18-21UT 1.67 1.00 1.67
21-00UT 2.00 1.67 1.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected over
10-12 Feb.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 10-Feb 12 2026

Feb 10 Feb 11 Feb 12
S1 or greater 25% 25% 25%

Rationale: There is a chance for S1 (Minor) or greater solar radiation
storms on 10-12 Feb due to the flare potential and location of Region
4366.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Feb 09 2026 0227 UTC.

Radio Blackout Forecast for Feb 10-Feb 12 2026

Feb 10 Feb 11 Feb 12
R1-R2 65% 65% 65%
R3 or greater 25% 25% 25%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
chance for R3 (Strong) or greater events, on 10-12 Feb.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 13 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 13-Feb 15 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 13-Feb 15 2026

Feb 13 Feb 14 Feb 15
00-03UT 1.67 3.00 3.67
03-06UT 1.33 2.67 2.67
06-09UT 1.33 2.00 2.67
09-12UT 1.33 2.67 2.33
12-15UT 1.33 2.00 2.33
15-18UT 1.33 2.67 2.33
18-21UT 1.67 2.67 4.67 (G1)
21-00UT 1.67 3.00 5.00 (G1)

Rationale: G1 (Minor) geomagnetic storms are likely on 15 Feb due to
combined potential from a recurrent coronal hole and a passing coronal
mass ejection.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 13-Feb 15 2026

Feb 13 Feb 14 Feb 15
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Feb 12 2026 0240 UTC.

Radio Blackout Forecast for Feb 13-Feb 15 2026

Feb 13 Feb 14 Feb 15
R1-R2 10% 10% 10%
R3 or greater 5% 5% 5%

Rationale: There exists a slight chance for R1-R2 (Minor) radio
blackouts over 13-15 Feb due to the flare potential of multiple active
regions on the Suns visible disk.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 16 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Feb 16-Feb 18 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 16-Feb 18 2026

Feb 16 Feb 17 Feb 18
00-03UT 4.67 (G1) 3.67 2.67
03-06UT 4.33 3.67 2.67
06-09UT 3.67 2.67 2.67
09-12UT 3.33 2.67 2.00
12-15UT 2.33 2.00 2.00
15-18UT 2.67 1.67 0.67
18-21UT 2.67 1.67 2.33
21-00UT 3.33 2.67 3.00

Rationale: Isolated periods of G1 (Minor-Moderate) geomagnetic storming
are likely on 16 Feb due to positive polarity CH HSS influences with
potential weak CME enhancements as a CME from 13 Feb might pass in close proximity.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 16-Feb 18 2026

Feb 16 Feb 17 Feb 18
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 16-Feb 18 2026

Feb 16 Feb 17 Feb 18
R1-R2 5% 5% 5%
R3 or greater 1% 1% 1%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 19 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 19-Feb 21 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 19-Feb 21 2026

Feb 19 Feb 20 Feb 21
00-03UT 3.33 3.00 2.33
03-06UT 3.67 3.00 1.67
06-09UT 2.00 2.33 1.33
09-12UT 2.33 1.33 0.67
12-15UT 2.33 1.33 1.00
15-18UT 2.00 1.67 0.67
18-21UT 3.00 2.00 1.33
21-00UT 3.67 3.00 2.00

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 19-Feb 21 2026

Feb 19 Feb 20 Feb 21
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 19-Feb 21 2026

Feb 19 Feb 20 Feb 21
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: Solar activity is expected to be at low levels, with a slight
chance for M-class (R1-R2/Minor-Moderate) flares through 21 Feb.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 22 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 22-Feb 24 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 22-Feb 24 2026

Feb 22 Feb 23 Feb 24
00-03UT 2.67 3.67 3.67
03-06UT 3.67 4.67 (G1) 3.67
06-09UT 2.67 3.67 2.67
09-12UT 1.67 3.67 2.67
12-15UT 2.67 2.67 2.00
15-18UT 2.67 2.67 1.67
18-21UT 3.67 2.67 1.67
21-00UT 3.67 3.67 2.67

Rationale: G1 (Minor) geomagnetic storms are likely on 23 Feb due to
effects from an anticipated coronal hole HSS.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 22-Feb 24 2026

Feb 22 Feb 23 Feb 24
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 22-Feb 24 2026

Feb 22 Feb 23 Feb 24
R1-R2 5% 10% 10%
R3 or greater 1% 1% 1%

Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio blackouts over 23-24 Feb.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 25 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 25-Feb 27 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 25-Feb 27 2026

Feb 25 Feb 26 Feb 27
00-03UT 3.67 3.00 2.67
03-06UT 3.67 3.67 2.67
06-09UT 3.33 2.67 2.33
09-12UT 3.00 2.33 2.33
12-15UT 3.00 2.00 2.00
15-18UT 2.33 2.00 2.00
18-21UT 2.67 2.33 2.33
21-00UT 3.67 3.00 2.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 25-Feb 27 2026

Feb 25 Feb 26 Feb 27
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 25-Feb 27 2026

Feb 25 Feb 26 Feb 27
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts through 27 Feb.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Feb 28 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 28-Mar 02 2026 is 4.33 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 28-Mar 02 2026

Feb 28 Mar 01 Mar 02
00-03UT 3.00 3.33 3.33
03-06UT 2.67 4.33 3.67
06-09UT 1.67 4.00 3.00
09-12UT 1.67 3.00 2.67
12-15UT 1.33 2.67 3.00
15-18UT 1.00 2.67 3.00
18-21UT 2.67 3.00 3.33
21-00UT 3.33 3.00 3.00

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 28-Mar 02 2026

Feb 28 Mar 01 Mar 02
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 28-Mar 02 2026

Feb 28 Mar 01 Mar 02
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%

Rationale: There exists a chance for R1-R2 (Minor-Moderate) radio
blackouts over 28 Feb - 02 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 03 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 03-Mar 05 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 03-Mar 05 2026

Mar 03 Mar 04 Mar 05
00-03UT 2.00 3.67 2.67
03-06UT 1.67 3.33 2.67
06-09UT 2.33 2.33 1.33
09-12UT 1.33 2.00 1.67
12-15UT 2.00 1.33 1.33
15-18UT 2.33 2.00 1.67
18-21UT 3.33 2.00 1.67
21-00UT 3.67 2.00 1.33

Rationale: No G1 (Minor) or greater geomagnetic storms are expected
through 05 Mar.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 03-Mar 05 2026

Mar 03 Mar 04 Mar 05
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.


C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 03-Mar 05 2026

Mar 03 Mar 04 Mar 05
R1-R2 30% 30% 30%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong) events, through 05 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 06 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 06-Mar 08 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Mar 06-Mar 08 2026

Mar 06 Mar 07 Mar 08
00-03UT 2.00 3.67 4.00
03-06UT 2.33 3.33 2.00
06-09UT 3.33 2.00 2.00
09-12UT 3.33 1.67 2.00
12-15UT 3.67 3.00 2.67
15-18UT 4.00 3.33 2.67
18-21UT 4.67 (G1) 3.67 2.67
21-00UT 4.33 3.33 3.00

Rationale: Isolated G1 (Minor) geomagnetic storms are possible on 06 Mar
due to the anticipated arrival of a CIR associated with a negative
polarity coronal hole high speed stream.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 06-Mar 08 2026

Mar 06 Mar 07 Mar 08
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.


C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 06-Mar 08 2026

Mar 06 Mar 07 Mar 08
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts through 08 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 10 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 10-Mar 12 2026 is 2.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 10-Mar 12 2026

Mar 10 Mar 11 Mar 12
00-03UT 2.67 1.67 1.67
03-06UT 2.67 1.33 1.33
06-09UT 2.33 1.33 1.33
09-12UT 2.00 1.33 1.33
12-15UT 1.00 1.33 1.33
15-18UT 1.00 1.33 1.67
18-21UT 1.67 1.67 1.33
21-00UT 2.00 1.67 1.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 10-Mar 12 2026

Mar 10 Mar 11 Mar 12
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 10-Mar 12 2026

Mar 10 Mar 11 Mar 12
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%

Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio blackouts over 10-12 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 13 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 13-Mar 15 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Mar 13-Mar 15 2026

Mar 13 Mar 14 Mar 15
00-03UT 1.67 4.67 (G1) 4.00
03-06UT 1.33 4.00 3.33
06-09UT 1.33 4.00 2.67
09-12UT 2.67 3.00 2.00
12-15UT 3.33 2.67 2.00
15-18UT 5.00 (G1) 2.33 2.00
18-21UT 4.33 2.33 2.33
21-00UT 4.33 3.67 2.67

Rationale: G1 (Minor) geomagnetic storms are likely over 13-14 Mar due
to influence from a positive polarity coronal hole.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 13-Mar 15 2026

Mar 13 Mar 14 Mar 15
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 13-Mar 15 2026

Mar 13 Mar 14 Mar 15
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%

Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio blackouts over 13-15 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 16 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 16-Mar 18 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 16-Mar 18 2026

Mar 16 Mar 17 Mar 18
00-03UT 3.67 2.67 2.67
03-06UT 3.67 3.00 2.33
06-09UT 3.00 2.33 2.00
09-12UT 2.67 2.00 1.33
12-15UT 2.67 2.00 1.67
15-18UT 3.00 2.00 2.00
18-21UT 3.33 2.33 2.33
21-00UT 3.33 2.67 2.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 16-Mar 18 2026

Mar 16 Mar 17 Mar 18
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 16-Mar 18 2026

Mar 16 Mar 17 Mar 18
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio blackouts over 16-18 Mar.


--- MBSE BBS v1.1.7 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 19 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 19-Mar 21 2026 is 6.33 (NOAA Scale
G2).

NOAA Kp index breakdown Mar 19-Mar 21 2026

Mar 19 Mar 20 Mar 21
00-03UT 1.67 6.33 (G2) 4.33
03-06UT 2.00 6.00 (G2) 6.33 (G2)
06-09UT 2.33 4.67 (G1) 5.67 (G2)
09-12UT 3.00 4.33 5.00 (G1)
12-15UT 3.33 4.33 5.00 (G1)
15-18UT 4.33 4.00 4.67 (G1)
18-21UT 5.33 (G1) 4.00 4.67 (G1)
21-00UT 6.00 (G2) 3.33 4.33

Rationale: G1-G2 (Minor-Moderate) geomagnetic storms are expected over
19-21 Mar due to arrival of the 16 and 18 Mar CMEs alongside an
anticipated solar sector boundary crossing.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 19-Mar 21 2026

Mar 19 Mar 20 Mar 21
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for S1 (Minor) or greater solar
radiation storms on 19-21 Mar due to the potential of CME shock
influences.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Mar 18 2026 0839 UTC.

Radio Blackout Forecast for Mar 19-Mar 21 2026

Mar 19 Mar 20 Mar 21
R1-R2 35% 35% 35%
R3 or greater 10% 10% 10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong) events through 21 Mar due
predominantly to the flaring potential of Region 4392.


--- MBSE BBS v1.1.7.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 23 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 7 (NOAA Scale
G3).
The greatest expected 3 hr Kp for Mar 23-Mar 25 2026 is 6.00 (NOAA Scale
G2).

NOAA Kp index breakdown Mar 23-Mar 25 2026

Mar 23 Mar 24 Mar 25
00-03UT 6.00 (G2) 4.00 3.00
03-06UT 5.67 (G2) 3.67 3.67
06-09UT 4.67 (G1) 3.00 2.67
09-12UT 4.00 2.33 2.67
12-15UT 3.00 2.33 2.00
15-18UT 3.00 2.33 2.00
18-21UT 3.33 2.67 2.67
21-00UT 3.67 3.00 2.67

Rationale: Periods of G1-G2 (Minor-Moderate) geomagnetic storming are
expected on 23 Mar in response to negative polarity CH HSS influences.
Periods of active conditions are expected on 24-25 Mar as negative
polarity CH HSS influences continue, but gradually diminish.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 23-Mar 25 2026

Mar 23 Mar 24 Mar 25
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 23-Mar 25 2026

Mar 23 Mar 24 Mar 25
R1-R2 25% 20% 20%
R3 or greater 5% 1% 1%

Rationale: Solar activity is expected to be low with a chance for
M-class flares on 23 Mar, and is likely to be low with a slight chance
for an M-class flare on 24-25 Mar.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 26 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1). The greatest expected 3 hr Kp for Mar 26-Mar 28 2026 is 4.67 (NOAA
Scale G1).

NOAA Kp index breakdown Mar 26-Mar 28 2026

Mar 26 Mar 27 Mar 28
00-03UT 4.67 (G1) 2.33 1.67
03-06UT 4.67 (G1) 2.67 2.00
06-09UT 4.00 2.00 1.33
09-12UT 2.67 2.00 0.67
12-15UT 2.67 1.67 1.33
15-18UT 3.00 2.00 1.33
18-21UT 2.33 2.00 1.67
21-00UT 2.00 2.33 1.67

Rationale: G1 (Minor) geomagnetic storms are expected on 26 Mar due to a possible glancing blow from a CME that left the Sun on 22 Mar. No
further G1 (Minor) or greater geomagnetic storms are expected on 27-28
Mar.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 26-Mar 28 2026

Mar 26 Mar 27 Mar 28
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Mar 26-Mar 28 2026

Mar 26 Mar 27 Mar 28
R1-R2 30% 30% 30%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong) events through 28 Mar.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Mar 29 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 29-Mar 31 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Mar 29-Mar 31 2026

Mar 29 Mar 30 Mar 31
00-03UT 2.33 3.67 3.67
03-06UT 1.67 4.67 (G1) 3.00
06-09UT 1.00 3.00 2.67
09-12UT 0.67 2.33 2.00
12-15UT 1.67 2.33 2.00
15-18UT 2.33 2.33 2.33
18-21UT 2.67 3.00 2.67
21-00UT 3.00 3.67 2.67

Rationale: G1 (Minor) geomagnetic storming is likely on 30 Mar in
response to +CH HSS influences.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 29-Mar 31 2026

Mar 29 Mar 30 Mar 31
S1 or greater 5% 5% 5%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Mar 28 2026 0418 UTC.

Radio Blackout Forecast for Mar 29-Mar 31 2026

Mar 29 Mar 30 Mar 31
R1-R2 50% 50% 50%
R3 or greater 10% 10% 10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
and a slight chance for an R3 (Strong) event, on 29-31 Mar.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 01 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 01-Apr 03 2026 is 6.33 (NOAA Scale
G2).

NOAA Kp index breakdown Apr 01-Apr 03 2026

Apr 01 Apr 02 Apr 03
00-03UT 3.00 4.33 3.67
03-06UT 5.67 (G2) 4.00 3.33
06-09UT 6.33 (G2) 3.33 3.00
09-12UT 4.67 (G1) 2.33 3.00
12-15UT 4.33 3.00 3.00
15-18UT 4.00 4.67 (G1) 3.00
18-21UT 4.67 (G1) 4.33 3.33
21-00UT 3.67 4.67 (G1) 3.67

Rationale: G2 (Moderate) geomagnetic storming levels are likely with a
chance for isolated G3 (Strong) storm levels possible 01 Apr due to
effects from the CME associated with 30 Mar X1.4 major flare event.
Active to G1 (Minor) levels are anticipated to continue into 02 Apr as
CME effects wane alongside the forecasted onset of CH HSS activity which
is likely to cause unsettled to active levels on 03 Apr.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 01-Apr 03 2026

Apr 01 Apr 02 Apr 03
S1 or greater 15% 15% 15%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to exceed S1 (Minor) solar radiation storm levels through 03 Apr
due to the X1.4 flare at 30/0319 UTC and anticipated arrival of its
associated CME alongside the complexity and evolution of the active
regions currently on the solar disk.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 01-Apr 03 2026

Apr 01 Apr 02 Apr 03
R1-R2 55% 55% 55%
R3 or greater 20% 20% 20%

Rationale: Solar activity is likely to reach Minor-Moderate (R1-R2)
levels, with a slight chance for X-class flares (R3/Strong) through 03
Apr due to the complexity and evolution of the active regions currently
on the solar disk.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 05 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Apr 05-Apr 07 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Apr 05-Apr 07 2026

Apr 05 Apr 06 Apr 07
00-03UT 3.67 2.67 2.67
03-06UT 3.33 3.00 2.67
06-09UT 3.00 2.67 2.67
09-12UT 3.00 2.67 2.00
12-15UT 2.67 2.00 0.67
15-18UT 2.00 1.67 0.67
18-21UT 2.00 1.67 1.67
21-00UT 2.67 2.67 2.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 05-Apr 07 2026

Apr 05 Apr 06 Apr 07
S1 or greater 20% 20% 20%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to exceed S1 (Minor) solar radiation storm levels over 05-07 Apr.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R2 levels were observed over the past 24
hours. The largest was at Apr 04 2026 0117 UTC.

Radio Blackout Forecast for Apr 05-Apr 07 2026

Apr 05 Apr 06 Apr 07
R1-R2 55% 55% 55%
R3 or greater 20% 20% 20%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for an isolated R3 (Strong) event, over 05-07 Apr, driven primarily by the flare potential of Region 4409.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 08 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 08-Apr 10 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Apr 08-Apr 10 2026

Apr 08 Apr 09 Apr 10
00-03UT 2.33 3.33 2.33
03-06UT 2.00 3.00 5.00 (G1)
06-09UT 1.67 1.67 4.67 (G1)
09-12UT 1.33 1.00 3.67
12-15UT 0.67 0.67 2.67
15-18UT 2.00 1.33 2.67
18-21UT 2.33 1.33 3.67
21-00UT 3.00 1.67 4.00

Rationale: G1 (Minor) or greater geomagnetic storms are likely on 10 Apr
due to a new positive polarity coronal hole stream influence.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 08-Apr 10 2026

Apr 08 Apr 09 Apr 10
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to exceed S1 (Minor) solar radiation storm levels 08-10 Apr.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 08-Apr 10 2026

Apr 08 Apr 09 Apr 10
R1-R2 35% 35% 35%
R3 or greater 10% 10% 10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong) or greater events 08-10 Apr.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 11 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 11-Apr 13 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Apr 11-Apr 13 2026

Apr 11 Apr 12 Apr 13
00-03UT 3.67 3.67 2.67
03-06UT 4.67 (G1) 3.67 2.67
06-09UT 4.00 3.67 3.00
09-12UT 4.00 2.67 2.67
12-15UT 3.00 2.67 1.67
15-18UT 2.67 1.67 1.67
18-21UT 4.00 2.67 2.00
21-00UT 4.67 (G1) 3.00 2.67

Rationale: Periods of G1 (Minor) storm levels are expected on 11 Apr due
to +CH HSS influences.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 11-Apr 13 2026

Apr 11 Apr 12 Apr 13
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 11-Apr 13 2026

Apr 11 Apr 12 Apr 13
R1-R2 5% 5% 5%
R3 or greater 1% 1% 1%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 14 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 14-Apr 16 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Apr 14-Apr 16 2026

Apr 14 Apr 15 Apr 16
00-03UT 1.67 2.67 1.67
03-06UT 2.67 3.00 2.67
06-09UT 1.67 4.00 2.67
09-12UT 1.67 2.67 2.33
12-15UT 1.00 2.67 1.67
15-18UT 0.67 1.67 1.67
18-21UT 1.67 1.67 1.67
21-00UT 2.00 2.00 2.33

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 14-Apr 16 2026

Apr 14 Apr 15 Apr 16
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 14-Apr 16 2026

Apr 14 Apr 15 Apr 16
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts on 14-16 Apr.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 16 1230 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 16-Apr 18 2026 is 6.00 (NOAA Scale
G2).

NOAA Kp index breakdown Apr 16-Apr 18 2026

Apr 16 Apr 17 Apr 18
00-03UT 0.67 2.33 6.00 (G2)
03-06UT 1.00 2.67 6.00 (G2)
06-09UT 1.00 2.67 5.00 (G1)
09-12UT 0.67 2.00 4.00
12-15UT 1.67 1.33 3.67
15-18UT 1.67 2.67 3.33
18-21UT 1.67 4.33 3.00
21-00UT 2.33 5.67 (G2) 4.33

Rationale: G1-G2 (Minor-Moderate) geomagnetic storms are likely on 17-18
Apr due to the anticipated arrival of a negative polarity CH HSS CIR.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 16-Apr 18 2026

Apr 16 Apr 17 Apr 18
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 16-Apr 18 2026

Apr 16 Apr 17 Apr 18
R1-R2 30% 30% 30%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through 18 Apr, mostly due to the flare potential of Region 4419.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 20 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 6 (NOAA Scale
G2).
The greatest expected 3 hr Kp for Apr 20-Apr 22 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Apr 20-Apr 22 2026

Apr 20 Apr 21 Apr 22
00-03UT 3.67 3.33 2.67
03-06UT 3.67 4.00 2.00
06-09UT 3.33 3.00 2.33
09-12UT 3.33 2.67 2.00
12-15UT 3.33 2.33 2.00
15-18UT 2.00 3.00 2.33
18-21UT 3.33 2.67 2.00
21-00UT 3.33 2.33 2.00

Rationale: No G1 (Minor) or greater geomagnetic storms are expected as
the CH HSS ongoing effect wanes.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 20-Apr 22 2026

Apr 20 Apr 21 Apr 22
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 20-Apr 22 2026

Apr 20 Apr 21 Apr 22
R1-R2 5% 5% 5%
R3 or greater 1% 1% 1%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 23 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 23-Apr 25 2026 is 3.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Apr 23-Apr 25 2026

Apr 23 Apr 24 Apr 25
00-03UT 2.33 2.33 2.33
03-06UT 2.00 2.67 2.67
06-09UT 2.00 2.67 2.33
09-12UT 2.00 1.67 2.00
12-15UT 0.67 1.33 1.33
15-18UT 2.00 2.00 1.67
18-21UT 2.67 2.00 2.00
21-00UT 3.00 2.33 2.67

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 23-Apr 25 2026

Apr 23 Apr 24 Apr 25
S1 or greater 1% 1% 1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 23-Apr 25 2026

Apr 23 Apr 24 Apr 25
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: A slight chance for R1-R2 (Minor-Moderate) radio blackouts
will persist through 25 April primarily due to the flare potential
exhibited by Region 4420.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 26 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 26-Apr 28 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Apr 26-Apr 28 2026

Apr 26 Apr 27 Apr 28
00-03UT 4.67 (G1) 3.67 2.33
03-06UT 4.33 3.00 2.00
06-09UT 3.33 2.67 2.00
09-12UT 3.33 2.33 2.00
12-15UT 2.33 2.00 2.33
15-18UT 2.33 2.33 2.00
18-21UT 3.00 3.33 2.00
21-00UT 3.33 3.33 2.00

Rationale: Isolated G1-G2 (Minor-Moderate) geomagnetic storming
conditions are possible (G1 likely with a chance for G2)early 26 Apr in response to the arrival of the glancing CMEs.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 26-Apr 28 2026

Apr 26 Apr 27 Apr 28
S1 or greater 10% 10% 10%

Rationale: There is a chance to exceed the S1 (Minor) solar radiation
storm thresholds due to the flare potential of Region 4419 further
beyond the western limb, and Region 4420 near the central solar
meridian.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Apr 25 2026 0759 UTC.

Radio Blackout Forecast for Apr 26-Apr 28 2026

Apr 26 Apr 27 Apr 28
R1-R2 55% 55% 55%
R3 or greater 15% 15% 15%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for R3 (Strong or greater) events through 28 Apr,
primarily driven by the complexity of Regions 4420, 4423, and 4425.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2026 Apr 29 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Apr 29-May 01 2026 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Apr 29-May 01 2026

Apr 29 Apr 30 May 01
00-03UT 0.33 4.00 3.00
03-06UT 0.67 3.33 2.67
06-09UT 1.33 2.67 2.67
09-12UT 1.33 3.00 2.33
12-15UT 1.00 2.33 2.00
15-18UT 1.00 2.33 2.00
18-21UT 1.33 2.00 2.00
21-00UT 1.67 3.00 2.33

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 29-May 01 2026

Apr 29 Apr 30 May 01
S1 or greater 15% 15% 15%

Rationale: There is a slight chance the greater than 10 MeV proton flux
could reach S1 (Minor) levels, but is mainly expected to remain at
background levels 29-30 Apr and 01 May.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Apr 28 2026 1353 UTC.

Radio Blackout Forecast for Apr 29-May 01 2026

Apr 29 Apr 30 May 01
R1-R2 70% 70% 70%
R3 or greater 20% 20% 20%

Rationale: There is a high likelihood for R1/R2 (Minor/Moderate) radio blackouts, and a slight chance for R3 (Strong or greater) events through
01 May, due primarily to the complexity of regions 4420 and 4425.


--- MBSE BBS v1.1.7.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)