039
FXXX10 KWNP 241231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2026 Jan 24 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 24-Jan 26 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Jan 24-Jan 26 2026

             Jan 24       Jan 25       Jan 26
00-03UT       4.00         2.33         1.67
03-06UT       2.33         2.67         1.33
06-09UT       2.33         2.33         1.33
09-12UT       2.67         1.67         1.33
12-15UT       4.67 (G1)    1.33         1.67
15-18UT       3.67         1.33         1.33
18-21UT       2.67         2.00         1.67
21-00UT       2.67         2.33         1.33

Rationale: Isolated periods of G1 (Minor) geomagnetic storming is
expected on 24 Jan due to ongoing 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 Jan 24-Jan 26 2026

              Jan 24  Jan 25  Jan 26
S1 or greater   10%     10%     10%

Rationale: There is a slight chance for S1 (Minor) solar radiation
storms over 24-26 Jan.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Jan 24-Jan 26 2026

              Jan 24        Jan 25        Jan 26
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 24-26 Jan.