:Product: 3-Day Forecast
:Issued: 2025 May 27 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 May 27-May 29 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown May 27-May 29 2025

May 27 May 28 May 29
00-03UT 2.00 1.67 4.00
03-06UT 2.67 3.67 4.00
06-09UT 2.67 5.00 (G1) 3.33
09-12UT 1.67 4.67 (G1) 3.00
12-15UT 1.67 3.67 2.33
15-18UT 1.00 3.00 2.00
18-21UT 1.00 3.33 2.00
21-00UT 2.67 4.00 3.33

Rationale: G1 (Minor) or greater geomagnetic storms are likely on 28 May
due to CH HSS onset. 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 May 27-May 29 2025

May 27 May 28 May 29
S1 or greater 15% 15% 15%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to reach S1 (Minor) levels over 27-29 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 May 26 2025 1306 UTC.

Radio Blackout Forecast for May 27-May 29 2025

May 27 May 28 May 29
R1-R2 70% 70% 70%
R3 or greater 30% 30% 30%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
chance for isolated R3 (Strong or greater) events over 27-29 May.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 May 30 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 May 30-Jun 01 2025 is 5.67 (NOAA Scale
G2).

NOAA Kp index breakdown May 30-Jun 01 2025

May 30 May 31 Jun 01
00-03UT 5.00 (G1) 4.67 (G1) 4.00
03-06UT 5.67 (G2) 4.33 4.67 (G1)
06-09UT 5.67 (G2) 4.00 4.00
09-12UT 5.00 (G1) 3.33 3.67
12-15UT 3.00 3.00 2.67
15-18UT 3.33 2.33 2.00
18-21UT 3.33 2.33 2.00
21-00UT 3.67 4.00 3.33

Rationale: G1-G2 (Minor-Moderate) geomagnetic storms are expected on 30
May due to influence from a negative polarity coronal hole. G1 (Minor) conditions are again likely on 31 May - 01 Jun due to waning coronal
hole effects.

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 May 30-Jun 01 2025

May 30 May 31 Jun 01
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for S1 (Minor) or greater solar
radiation storms over 30 May - 01 Jun.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for May 30-Jun 01 2025

May 30 May 31 Jun 01
R1-R2 50% 50% 50%
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), over 30 May - 01 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 02 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 8 (NOAA Scale
G4).
The greatest expected 3 hr Kp for Jun 02-Jun 04 2025 is 7.67 (NOAA Scale
G4).

NOAA Kp index breakdown Jun 02-Jun 04 2025

Jun 02 Jun 03 Jun 04
00-03UT 7.00 (G3) 4.33 4.00
03-06UT 7.67 (G4) 5.00 (G1) 4.00
06-09UT 6.67 (G3) 4.67 (G1) 3.33
09-12UT 6.33 (G2) 4.67 (G1) 3.00
12-15UT 5.00 (G1) 4.67 (G1) 3.00
15-18UT 4.67 (G1) 4.33 3.33
18-21UT 5.33 (G1) 4.00 3.00
21-00UT 4.33 4.00 2.67

Rationale: UP to G4 (Severe) geomagnetic storms are likely on 02 Jun
due to effects from a CME that left the Sun on 31 May. G1-G2
(Minor-Moderate) geomagnetic storms are likely on 03 Jun due to coronal
hole influence.

B. NOAA Solar Radiation Activity Observation and Forecast

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

Solar Radiation Storm Forecast for Jun 02-Jun 04 2025

Jun 02 Jun 03 Jun 04
S1 or greater 99% 75% 60%

Rationale: S1-S2 (Minor-Moderate) solar radiation storms are likely
persist over 02-03 Jun becoming likely on 04 Jun.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 02-Jun 04 2025

Jun 02 Jun 03 Jun 04
R1-R2 65% 65% 65%
R3 or greater 15% 15% 15%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for R3 (Strong), over 02-04 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 Jun 05-Jun 07 2025 is 5.67 (NOAA Scale
G2).

NOAA Kp index breakdown Jun 05-Jun 07 2025

Jun 05 Jun 06 Jun 07
00-03UT 4.67 (G1) 3.33 3.33
03-06UT 5.67 (G2) 4.00 3.67
06-09UT 4.67 (G1) 3.67 3.00
09-12UT 4.00 3.00 2.33
12-15UT 3.33 3.00 2.00
15-18UT 3.00 2.00 3.00
18-21UT 4.00 2.00 3.67
21-00UT 4.00 2.67 4.67 (G1)

Rationale: G1 to G2 (Minor-Moderate) geomagnetic storming is likely on
05 Jun due to waning CME and CH HSS influences. G1 (Minor) geomagnetic
storming is likely again on 07 Jun due to CME influences from the 04 Jun filament eruption.

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 Jun 05-Jun 07 2025

Jun 05 Jun 06 Jun 07
S1 or greater 10% 10% 10%

Rationale: A slight chance for S1 (Minor) solar radiation storms will
persist through 07 Jun given the flare potential and history of AR 4100
in particular.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Jun 04 2025 2328 UTC.

Radio Blackout Forecast for Jun 05-Jun 07 2025

Jun 05 Jun 06 Jun 07
R1-R2 45% 45% 45%
R3 or greater 10% 10% 10%

Rationale: A chance for R1-2 (Minor-Moderate) radio blackouts, with a
slight chance for an isolated R3 (Strong) event, will persist through 07
Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Jun 08-Jun 10 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Jun 08-Jun 10 2025

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

Rationale: G1 (Minor) geomagnetic storms are likely on 08-09 Jun due to transient 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 Jun 08-Jun 10 2025

Jun 08 Jun 09 Jun 10
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

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 08-Jun 10 2025

Jun 08 Jun 09 Jun 10
R1-R2 30% 35% 35%
R3 or greater 5% 5% 5%

Rationale: A chance exists for R1-R2 (Minor-Moderate) radio blackouts
over 08-10 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 11-Jun 13 2025 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 11-Jun 13 2025

Jun 11 Jun 12 Jun 13
00-03UT 2.33 2.33 3.67
03-06UT 3.00 2.67 3.33
06-09UT 2.67 1.67 3.33
09-12UT 2.33 2.00 2.67
12-15UT 1.33 2.00 2.67
15-18UT 1.00 2.00 2.67
18-21UT 3.33 2.00 3.00
21-00UT 4.00 2.67 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 Jun 11-Jun 13 2025

Jun 11 Jun 12 Jun 13
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

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 11-Jun 13 2025

Jun 11 Jun 12 Jun 13
R1-R2 35% 35% 35%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
all three days.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

Keeping my fingers crossed the band will be in better shape for ARRL Field Day!

Rug Rat (Brent Hendricks)
Blog and Forums - www.catracing.org
IMAGE BBS! 3.0 - bbs.catracing.org 6400
C-Net Amiga BBS - bbs.catracing.org 6840
--- CNet/5
* Origin: The Rat's Den BBS (1:135/250)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 6 (NOAA Scale
G2).
The greatest expected 3 hr Kp for Jun 14-Jun 16 2025 is 6.00 (NOAA Scale
G2).

NOAA Kp index breakdown Jun 14-Jun 16 2025

Jun 14 Jun 15 Jun 16
00-03UT 4.67 (G1) 5.00 (G1) 4.67 (G1)
03-06UT 5.33 (G1) 4.33 4.00
06-09UT 5.67 (G2) 3.67 3.33
09-12UT 4.33 3.33 3.00
12-15UT 3.33 2.67 3.00
15-18UT 4.67 (G1) 3.00 2.33
18-21UT 5.00 (G1) 3.00 2.33
21-00UT 6.00 (G2) 4.00 3.00

Rationale: Periods of G1-G2 (Minor-Moderate) geomagnetic storms are
expected on 14 Jun due to CME and CH HSS influences. Periods of G1
(Minor) storming are likely on 15-16 Jun 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 Jun 14-Jun 16 2025

Jun 14 Jun 15 Jun 16
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 Jun 13 2025 2110 UTC.

Radio Blackout Forecast for Jun 14-Jun 16 2025

Jun 14 Jun 15 Jun 16
R1-R2 40% 40% 40%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
over 14-16 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 17 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 Jun 17-Jun 19 2025 is 4.33 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 17-Jun 19 2025

Jun 17 Jun 18 Jun 19
00-03UT 3.00 3.33 3.33
03-06UT 3.67 3.00 2.00
06-09UT 2.67 2.00 2.00
09-12UT 2.67 2.33 3.00
12-15UT 2.33 2.67 3.00
15-18UT 1.67 3.33 3.33
18-21UT 0.67 4.00 3.33
21-00UT 1.00 4.33 3.33

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 Jun 17-Jun 19 2025

Jun 17 Jun 18 Jun 19
S1 or greater 30% 15% 5%

Rationale: There is a decreasing chance for S1 (Minor) or greater solar radiation storms over the next three days.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R2 levels were observed over the past 24
hours. The largest was at Jun 16 2025 0938 UTC.

Radio Blackout Forecast for Jun 17-Jun 19 2025

Jun 17 Jun 18 Jun 19
R1-R2 75% 75% 70%
R3 or greater 30% 30% 30%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are expected, with a
chance for R3 (Strong) or greater events, over 17-19 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 20-Jun 22 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Jun 20-Jun 22 2025

Jun 20 Jun 21 Jun 22
00-03UT 2.33 2.67 1.67
03-06UT 4.33 2.00 1.33
06-09UT 5.00 (G1) 2.33 1.33
09-12UT 4.33 2.33 1.33
12-15UT 3.33 2.33 1.67
15-18UT 3.33 2.33 1.33
18-21UT 2.33 2.33 1.67
21-00UT 3.67 2.67 1.33

Rationale: An isolated period of G1 (Minor) geomagnetic storms are
likely on 20 Jun due to positive polarity CH HSS influences and possible influences from a CME that left the Sun on 17 Jun.

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 Jun 20-Jun 22 2025

Jun 20 Jun 21 Jun 22
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for S1 (Minor) solar radiation
storms over 20-22 Jun.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at Jun 19 2025 2350 UTC.

Radio Blackout Forecast for Jun 20-Jun 22 2025

Jun 20 Jun 21 Jun 22
R1-R2 65% 65% 65%
R3 or greater 15% 15% 15%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are expected, with a
slight chance for R3 (Strong) or greater events, over 20-22 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 23-Jun 25 2025 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Jun 23-Jun 25 2025

Jun 23 Jun 24 Jun 25
00-03UT 2.67 3.00 4.67 (G1)
03-06UT 2.00 3.67 4.67 (G1)
06-09UT 2.00 2.00 4.00
09-12UT 2.67 2.67 4.00
12-15UT 3.67 2.67 4.67 (G1)
15-18UT 2.67 2.67 4.67 (G1)
18-21UT 2.67 2.67 4.67 (G1)
21-00UT 3.00 2.00 4.00

Rationale: Periods of G1 (Minor) geomagnetic storms are likely on 25 Jun
due to the onset of negative polarity 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 Jun 23-Jun 25 2025

Jun 23 Jun 24 Jun 25
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for S1 (Minor) solar radiation
storms over 23-25 Jun due to eruptive potential from multiple 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 Jun 23-Jun 25 2025

Jun 23 Jun 24 Jun 25
R1-R2 45% 45% 45%
R3 or greater 10% 10% 10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
and a slight chance for R3 (Strong) or greater events, over 23-25 Jun.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 26-Jun 28 2025 is 5.33 (NOAA Scale
G1).

NOAA Kp index breakdown Jun 26-Jun 28 2025

Jun 26 Jun 27 Jun 28
00-03UT 5.33 (G1) 4.00 3.67
03-06UT 5.00 (G1) 4.67 (G1) 3.33
06-09UT 4.00 4.00 3.00
09-12UT 3.67 3.33 2.67
12-15UT 3.00 2.33 2.33
15-18UT 3.00 2.33 2.33
18-21UT 4.00 2.67 2.67
21-00UT 5.00 (G1) 3.00 2.67

Rationale: G1 (Minor) geomagnetic storming is likely, with a chance for
an insolated G2 (Moderate) storming period, on 26-27 June due to
negative polarity CH HSS effects.

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 Jun 26-Jun 28 2025

Jun 26 Jun 27 Jun 28
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

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 26-Jun 28 2025

Jun 26 Jun 27 Jun 28
R1-R2 30% 35% 35%
R3 or greater 5% 5% 5%

Rationale: A chance for R1-R2 (Minor-Moderate) radio blackouts, with a
slight chance for X-class flares (R3-Strong), will persist through 28
June.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jun 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 Jun 29-Jul 01 2025 is 2.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 29-Jul 01 2025

Jun 29 Jun 30 Jul 01
00-03UT 2.67 1.67 1.33
03-06UT 2.33 1.67 1.67
06-09UT 2.33 1.67 1.33
09-12UT 2.00 1.33 1.33
12-15UT 1.33 1.33 1.67
15-18UT 1.67 1.33 1.67
18-21UT 2.00 1.33 1.33
21-00UT 2.00 1.33 1.33

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 Jun 29-Jul 01 2025

Jun 29 Jun 30 Jul 01
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

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jun 29-Jul 01 2025

Jun 29 Jun 30 Jul 01
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through the period.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jul 02 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 Jul 02-Jul 04 2025 is 5.33 (NOAA Scale
G1).

NOAA Kp index breakdown Jul 02-Jul 04 2025

Jul 02 Jul 03 Jul 04
00-03UT 4.33 4.67 (G1) 2.67
03-06UT 5.33 (G1) 4.33 4.00
06-09UT 5.00 (G1) 3.33 3.00
09-12UT 4.00 2.67 2.67
12-15UT 3.00 2.33 1.67
15-18UT 3.00 2.67 1.67
18-21UT 3.67 3.00 2.00
21-00UT 4.67 (G1) 3.67 2.67

Rationale: G1 (Minor) geomagnetic storm levels are likely on 02-03 Jul
due to the arrival of the 28 Jun CME.

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 Jul 02-Jul 04 2025

Jul 02 Jul 03 Jul 04
S1 or greater 5% 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 Jul 02-Jul 04 2025

Jul 02 Jul 03 Jul 04
R1-R2 20% 15% 15%
R3 or greater 5% 1% 1%

Rationale: A slight chance for R1-R2 (Minor-Moderate) radio blackouts
due to isolated M-class flare activity will persist through 04 July.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jul 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jul 05-Jul 07 2025 is 3.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 05-Jul 07 2025

Jul 05 Jul 06 Jul 07
00-03UT 3.00 2.33 3.00
03-06UT 2.67 2.67 3.00
06-09UT 2.33 2.67 2.00
09-12UT 2.00 2.00 2.00
12-15UT 2.33 2.00 2.00
15-18UT 2.33 1.00 1.00
18-21UT 2.33 2.00 0.67
21-00UT 2.67 2.33 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 Jul 05-Jul 07 2025

Jul 05 Jul 06 Jul 07
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 Jul 05-Jul 07 2025

Jul 05 Jul 06 Jul 07
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts over 05-07 Jul.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jul 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 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Jul 08-Jul 10 2025 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 08-Jul 10 2025

Jul 08 Jul 09 Jul 10
00-03UT 3.67 1.67 1.67
03-06UT 3.67 1.33 1.33
06-09UT 2.67 1.33 1.33
09-12UT 3.00 1.33 1.33
12-15UT 2.67 1.33 1.67
15-18UT 2.67 1.33 1.33
18-21UT 1.67 1.67 1.67
21-00UT 1.67 1.67 1.33

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 Jul 08-Jul 10 2025

Jul 08 Jul 09 Jul 10
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 Jul 08-Jul 10 2025

Jul 08 Jul 09 Jul 10
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1 (Minor) or greater radio
blackouts all three days.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Jul 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 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jul 11-Jul 13 2025 is 2.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jul 11-Jul 13 2025

Jul 11 Jul 12 Jul 13
00-03UT 1.67 2.33 2.33
03-06UT 1.67 2.00 2.00
06-09UT 1.33 2.33 2.33
09-12UT 1.33 2.67 2.00
12-15UT 1.33 2.33 2.00
15-18UT 1.33 2.67 2.00
18-21UT 1.67 2.33 2.00
21-00UT 1.33 2.33 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 Jul 11-Jul 13 2025

Jul 11 Jul 12 Jul 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 Jul 11-Jul 13 2025

Jul 11 Jul 12 Jul 13
R1-R2 35% 35% 35%
R3 or greater 1% 1% 1%

Rationale: Solar activity is expected to be low with a chance for
M-class flares (R1-R2/Minor-Moderate) on 11-13 Jul, primarily due to the
flare potential of Region 4136.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Oct 23 0034 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 Oct 23-Oct 25 2025 is 2.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Oct 23-Oct 25 2025

Oct 23 Oct 24 Oct 25
00-03UT 2.00 1.67 2.67
03-06UT 1.67 1.33 2.67
06-09UT 1.33 1.33 2.33
09-12UT 1.00 1.33 2.33
12-15UT 1.00 1.33 2.33
15-18UT 1.33 1.33 2.33
18-21UT 1.67 1.67 2.00
21-00UT 1.67 1.67 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 Oct 23-Oct 25 2025

Oct 23 Oct 24 Oct 25
S1 or greater 10% 1% 1%

Rationale: There is a slight chance for S1 (Minor) solar radiation storm
levels to be reached on 23 Oct associated with far-sided events. Chances diminish by 24-25 Oct.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Oct 23-Oct 25 2025

Oct 23 Oct 24 Oct 25
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for isolated R1-R2 (Minor-Moderate)
radio blackouts through 25 Oct.



--- MBSE BBS v1.1.1 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Oct 26 0034 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 Oct 26-Oct 28 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Oct 26-Oct 28 2025

Oct 26 Oct 27 Oct 28
00-03UT 2.00 2.00 4.00
03-06UT 1.67 2.00 4.67 (G1)
06-09UT 1.67 2.67 4.00
09-12UT 2.00 3.67 4.00
12-15UT 2.00 3.00 4.33
15-18UT 2.33 2.67 5.00 (G1)
18-21UT 2.67 2.67 4.33
21-00UT 2.33 2.67 5.00 (G1)

Rationale: G1 (Minor) conditions, with a chance for G2 (Moderate), are
likely on 28 Oct due to the anticipated onset of 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 Oct 26-Oct 28 2025

Oct 26 Oct 27 Oct 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 Oct 26-Oct 28 2025

Oct 26 Oct 27 Oct 28
R1-R2 10% 10% 10%
R3 or greater 1% 1% 1%

Rationale: A slight chance for isolated R1-R2 (Minor-Moderate) radio
blackouts continues over 26-28 Oct.



--- MBSE BBS v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Oct 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Oct 29-Oct 31 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Oct 29-Oct 31 2025

Oct 29 Oct 30 Oct 31
00-03UT 4.33 4.67 (G1) 3.67
03-06UT 5.00 (G1) 4.00 3.67
06-09UT 4.33 4.00 3.33
09-12UT 3.67 3.67 3.00
12-15UT 3.00 3.67 3.00
15-18UT 4.00 4.00 3.33
18-21UT 4.67 (G1) 3.33 3.00
21-00UT 4.00 3.33 3.00

Rationale: G1 (Minor) conditions, with a chance for G2 (Moderate)
levels, are likely on 29-30 Oct due to the anticipated onset of a 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 Oct 29-Oct 31 2025

Oct 29 Oct 30 Oct 31
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 Oct 29-Oct 31 2025

Oct 29 Oct 30 Oct 31
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 v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Nov 01-Nov 03 2025 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Nov 01-Nov 03 2025

Nov 01 Nov 02 Nov 03
00-03UT 4.00 3.33 2.67
03-06UT 3.33 4.00 3.67
06-09UT 3.33 3.33 3.00
09-12UT 3.00 2.67 2.67
12-15UT 3.67 2.33 2.33
15-18UT 2.67 2.00 2.33
18-21UT 2.67 2.33 2.00
21-00UT 3.33 3.33 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 Nov 01-Nov 03 2025

Nov 01 Nov 02 Nov 03
S1 or greater 1% 5% 10%

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 Nov 01-Nov 03 2025

Nov 01 Nov 02 Nov 03
R1-R2 25% 35% 45%
R3 or greater 5% 10% 10%

Rationale: There is an increasing chance for R1-R2 (Minor-Moderate)
radio blackouts all three days. A slight chance exists for R3 (Major) or greater blackouts on 02-03 Nov.



--- MBSE BBS v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Nov 04-Nov 06 2025 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Nov 04-Nov 06 2025

Nov 04 Nov 05 Nov 06
00-03UT 2.67 1.67 2.33
03-06UT 2.67 1.33 3.00
06-09UT 2.33 1.33 3.00
09-12UT 2.33 1.33 3.00
12-15UT 2.33 1.33 3.00
15-18UT 2.33 1.33 3.33
18-21UT 2.00 1.67 3.33
21-00UT 2.33 1.67 4.67 (G1)

Rationale: G1 (Minor) geomagnetic storms are likely on 06 Nov due to
CME/HSS arrival.

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 Nov 04-Nov 06 2025

Nov 04 Nov 05 Nov 06
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 R2 levels were observed over the past 24
hours. The largest was at Nov 03 2025 1011 UTC.

Radio Blackout Forecast for Nov 04-Nov 06 2025

Nov 04 Nov 05 Nov 06
R1-R2 55% 55% 55%
R3 or greater 10% 10% 10%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for an isolated (R3-Strong) event through 06 Nov.



--- MBSE BBS v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 7 (NOAA Scale
G3).
The greatest expected 3 hr Kp for Nov 07-Nov 09 2025 is 7.33 (NOAA Scale
G3).

NOAA Kp index breakdown Nov 07-Nov 09 2025

Nov 07 Nov 08 Nov 09
00-03UT 7.33 (G3) 4.67 (G1) 3.67
03-06UT 6.00 (G2) 4.67 (G1) 3.67
06-09UT 5.00 (G1) 4.00 3.00
09-12UT 7.33 (G3) 3.67 3.00
12-15UT 6.33 (G2) 3.33 3.00
15-18UT 4.67 (G1) 4.00 3.00
18-21UT 3.67 5.67 (G2) 3.33
21-00UT 3.33 4.33 3.33

Rationale: G1-G3 (Minor-Strong) geomagnetic storms are likely on 07 Nov,
and G1-G2 (Minor-Moderate) on 08 Nov, due to the effects of a coronal
hole combined with multiple 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 Nov 07-Nov 09 2025

Nov 07 Nov 08 Nov 09
S1 or greater 20% 20% 20%

Rationale: There exists a slight chance for S1 (Minor) or greater solar radiation storms over 07-09 Nov due primarily to the eruptive potential
of Region 4274.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Nov 06 2025 0431 UTC.

Radio Blackout Forecast for Nov 07-Nov 09 2025

Nov 07 Nov 08 Nov 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), due primarily to the flare potential of Region
4274.



--- MBSE BBS v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 Nov 10-Nov 12 2025 is 5.67 (NOAA Scale
G2).

NOAA Kp index breakdown Nov 10-Nov 12 2025

Nov 10 Nov 11 Nov 12
00-03UT 2.67 2.67 5.67 (G2)
03-06UT 3.00 3.00 4.67 (G1)
06-09UT 3.67 2.67 4.00
09-12UT 4.67 (G1) 3.67 3.67
12-15UT 3.67 4.67 (G1) 2.67
15-18UT 2.67 5.00 (G1) 2.67
18-21UT 1.67 5.67 (G2) 1.67
21-00UT 2.67 5.67 (G2) 2.67

Rationale: G1 (Minor) geomagnetic storms are likely over 10 Nov due to potential influence from a CME that left the Sun on 07 Nov. G2
(Moderate) conditions are possible on 11-12 Nov due to anticipated
influence from a CME that left the Sun on 09 Nov.

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 Nov 10-Nov 12 2025

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

Rationale: There is a chance for S1 (Minor) or greater solar radiation
storms over 10-12 Nov due to multiple complex regions the visible solar
disk.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at Nov 09 2025 0735 UTC.

Radio Blackout Forecast for Nov 10-Nov 12 2025

Nov 10 Nov 11 Nov 12
R1-R2 70% 70% 70%
R3 or greater 25% 25% 25%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
chance for R3 (Strong), over 10-12 Nov due to multiple complex active
regions.



--- MBSE BBS v1.1.2 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 9 (NOAA Scale
G5).
The greatest expected 3 hr Kp for Nov 13-Nov 15 2025 is 8.33 (NOAA Scale
G4).

NOAA Kp index breakdown Nov 13-Nov 15 2025

Nov 13 Nov 14 Nov 15
00-03UT 8.00 (G4) 4.67 (G1) 2.33
03-06UT 8.33 (G4) 4.00 3.00
06-09UT 7.33 (G3) 3.33 2.33
09-12UT 5.00 (G1) 3.67 2.00
12-15UT 4.33 3.33 1.33
15-18UT 4.00 3.00 1.33
18-21UT 4.33 3.00 2.00
21-00UT 4.67 (G1) 3.33 2.33

Rationale: G4 (Severe) geomagnetic storming remains likely, primarily
during the early hours of the 13 Nov UTC-day, due to ongoing CME
effects. Primarily G1 (Minor) to G2 (Moderate) geomagnetic storming is
likely thereafter, carrying on into the early hours of the 14 Nov
UTC-day as CME effects gradually wane.

B. NOAA Solar Radiation Activity Observation and Forecast

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

Solar Radiation Storm Forecast for Nov 13-Nov 15 2025

Nov 13 Nov 14 Nov 15
S1 or greater 99% 75% 45%

Rationale: S1 (Minor) to S2 (Moderate) solar radiation storms are
expected to continue through 13 Nov before decreasing to the lower ends
of the S1 (Minor) threshold over the course of 14 Nov as CME influences
pass beyond the near-Earth environment.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Nov 13-Nov 15 2025

Nov 13 Nov 14 Nov 15
R1-R2 85% 85% 85%
R3 or greater 55% 55% 55%

Rationale: R1-2 (Minor-Moderate) radioblackouts are expected through 15
Nov and are likely to be accompanied by isolated R3 (Strong) events as
AR 4274 makes it approach towards the western limb of the solar disk.



--- MBSE BBS v1.1.3 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Nov 16-Nov 18 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Nov 16-Nov 18 2025

Nov 16 Nov 17 Nov 18
00-03UT 3.67 3.67 3.00
03-06UT 1.67 4.67 (G1) 3.67
06-09UT 1.33 4.00 3.00
09-12UT 1.33 3.67 2.67
12-15UT 2.00 3.33 2.33
15-18UT 2.00 3.33 2.33
18-21UT 3.33 3.00 2.33
21-00UT 5.00 (G1) 3.00 2.00

Rationale: G1 (Minor) geomagnetic storms are likely over 16-17 Nov due
to the anticipated influence of a negative 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 Nov 16-Nov 18 2025

Nov 16 Nov 17 Nov 18
S1 or greater 15% 10% 5%

Rationale: There exists a slight chance for S1 (Minor) or greater solar radiation storms over 16-17 Nov due to the eruptive potential from
Region 4274.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Nov 16-Nov 18 2025

Nov 16 Nov 17 Nov 18
R1-R2 60% 55% 40%
R3 or greater 20% 15% 5%

Rationale: R1 (Minor) radio blackouts are likely, with a chance for R3 (Strong), over 16-17 Nov due to the flare potential from Region 4274. By
18 Nov, there is a chance for R1 (Minor) radio blackouts due to the
flare potential from Region 4274.



--- MBSE BBS v1.1.3 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 Nov 19-Nov 21 2025 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Nov 19-Nov 21 2025

Nov 19 Nov 20 Nov 21
00-03UT 1.67 1.67 2.00
03-06UT 1.33 1.33 1.33
06-09UT 1.33 1.33 1.33
09-12UT 1.33 1.33 2.00
12-15UT 1.33 1.33 2.33
15-18UT 1.33 1.33 3.00
18-21UT 1.67 1.67 3.33
21-00UT 1.67 1.67 4.00

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 Nov 19-Nov 21 2025

Nov 19 Nov 20 Nov 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 Nov 19-Nov 21 2025

Nov 19 Nov 20 Nov 21
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: A slight chance for R1-2 (Minor-Moderate) radio blackouts due
to isolated M-class flare activity will persit through 21 Nov due to the
flare potential presented by AR 4284.



--- MBSE BBS v1.1.3 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (1:18/200)