279
FXXX10 KWNP 251231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2026 Jan 25 1230 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#             3-Day Forecast
#
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 Jan 25-Jan 27 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Jan 25-Jan 27 2026

             Jan 25       Jan 26       Jan 27
00-03UT       3.33         1.67         2.33
03-06UT       3.33         1.33         1.67
06-09UT       2.67         1.33         2.00
09-12UT       3.00         1.33         1.67
12-15UT       3.00         1.67         1.67
15-18UT       3.67         1.33         2.00
18-21UT       3.00         1.67         2.00
21-00UT       3.00         1.33         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 Jan 25-Jan 27 2026

              Jan 25  Jan 26  Jan 27
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 Jan 25-Jan 27 2026

              Jan 25        Jan 26        Jan 27
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 R3 (Strong) or greater event, over 25-27 Jan.