: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

: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 (618:618/1)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Nov 22-Nov 24 2025 is 3.33 (below NOAA
Scale levels).

NOAA Kp index breakdown Nov 22-Nov 24 2025

Nov 22 Nov 23 Nov 24
00-03UT 3.33 1.67 1.67
03-06UT 2.67 1.33 1.33
06-09UT 2.33 1.33 1.33
09-12UT 1.67 1.33 1.33
12-15UT 1.33 1.33 1.33
15-18UT 1.33 1.33 1.33
18-21UT 1.33 1.67 1.67
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 Nov 22-Nov 24 2025

Nov 22 Nov 23 Nov 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 Nov 22-Nov 24 2025

Nov 22 Nov 23 Nov 24
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 22-24 Nov.



--- MBSE BBS v1.1.4 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 Nov 25-Nov 27 2025 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Nov 25-Nov 27 2025

Nov 25 Nov 26 Nov 27
00-03UT 4.00 3.67 4.00
03-06UT 3.67 5.00 (G1) 4.00
06-09UT 4.33 3.67 4.00
09-12UT 3.67 2.67 3.67
12-15UT 3.33 4.67 (G1) 3.67
15-18UT 3.33 3.67 3.67
18-21UT 4.00 3.00 3.67
21-00UT 4.67 (G1) 3.67 4.00

Rationale: G1 (Minor) geomagnetic storms are likely on 25-26 Nov 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 Nov 25-Nov 27 2025

Nov 25 Nov 26 Nov 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 Nov 25-Nov 27 2025

Nov 25 Nov 26 Nov 27
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts on 25-27 Nov.



--- MBSE BBS v1.1.4 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2025 Nov 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 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Nov 28-Nov 30 2025 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Nov 28-Nov 30 2025

Nov 28 Nov 29 Nov 30
00-03UT 4.00 2.67 2.67
03-06UT 3.67 2.33 2.67
06-09UT 4.67 (G1) 2.67 2.33
09-12UT 3.67 2.67 2.00
12-15UT 3.33 2.67 2.00
15-18UT 3.33 2.67 1.67
18-21UT 3.67 2.67 2.00
21-00UT 3.67 2.67 2.00

Rationale: G1 (Minor) geomagnetic storming is expected early on 28 Nov
due to persistent 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 Nov 28-Nov 30 2025

Nov 28 Nov 29 Nov 30
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 28-Nov 30 2025

Nov 28 Nov 29 Nov 30
R1-R2 15% 15% 15%
R3 or greater 1% 1% 1%

Rationale: A slight chance for R1-R2 (Minor-Moderate) radio blackouts
will persist through 30 Nov.



--- MBSE BBS v1.1.5 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast
:Issued: 2025 Dec 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 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Dec 01-Dec 03 2025 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Dec 01-Dec 03 2025

Dec 01 Dec 02 Dec 03
00-03UT 3.00 1.33 3.00
03-06UT 2.33 1.33 3.67
06-09UT 3.00 1.67 3.00
09-12UT 2.00 1.33 3.00
12-15UT 1.67 1.33 2.00
15-18UT 1.00 1.33 2.67
18-21UT 1.00 1.67 3.00
21-00UT 1.67 1.67 3.00

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 Dec 01-Dec 03 2025

Dec 01 Dec 02 Dec 03
S1 or greater 10% 10% 10%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to reach S1 (Minor) levels through 03 Dec, due primarily to the
eruptive potential of Region 4294.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Dec 01-Dec 03 2025

Dec 01 Dec 02 Dec 03
R1-R2 70% 70% 70%
R3 or greater 20% 20% 20%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for an R3 (Strong) or greater event, on 01-03 Dec.



--- MBSE BBS v1.1.6 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)

:Product: 3-Day Forecast :Issued: 2025 Dec 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 Dec 07-Dec 09 2025 is 5.00 (NOAA Scale G1). NOAA Kp
index breakdown Dec 07-Dec 09 2025 Dec 07 Dec 08 Dec 09 00-03UT 2.67 3.00
1.67 03-06UT 2.00 5.00 (G1) 1.67 06-09UT 2.33 3.00 1.67 09-12UT 2.33 3.00
1.33 12-15UT 2.33 3.67 1.33 15-18UT 3.67 2.67 1.33 18-21UT 5.00 (G1) 2.00
1.33 21-00UT 4.00 2.00 1.33 Rationale: Isolated periods of G1 (Minor)
geomagnetic storming are likely on 07-08 Dec due to the anticipated
glancing arrival of a CME from 04 Dec. 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 Dec 07-Dec 09 2025 Dec 07 Dec 08 Dec 09 S1 or
greater 10% 10% 10% Rationale: There is a slight chance for S1 (Minor)
solar radiation storm conditions on 07-09 Dec. C. NOAA Radio Blackout
Activity and Forecast Radio blackouts reaching the R2 levels were observed
over the past 24 hours. The largest was at Dec 06 2025 2039 UTC. Radio
Blackout Forecast for Dec 07-Dec 09 2025 Dec 07 Dec 08 Dec 09 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) or greater
events, on 07-09 Dec.


--- MBSE BBS v1.1.6 (Linux-x86_64)
* Origin: Outpost BBS * Johnson City, TN (618:618/1)