: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)