Space Weather

Space Weather Observations, Alerts, and Forecast

Product: 3-Day Forecast - Issued: 2025 Jan 22 1230 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center.

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 Jan 22-Jan 24 2025 is 4.33 (below NOAA Scale levels).

NOAA Kp index breakdown Jan 22-Jan 24 2025
Jan 22Jan 23Jan 24
00-03UT3.331.671.67
03-06UT2.331.331.33
06-09UT3.001.331.33
09-12UT2.331.331.33
12-15UT1.331.334.00
15-18UT1.001.332.67
18-21UT1.331.674.00
21-00UT2.001.674.33

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast.

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 22-Jan 24 2025
Jan 22Jan 23Jan 24
S1 or greater10%10%10%

Rationale: No S1 (Minor) or greater solar radiation storms are expected. No significant active region activity favorable for radiation storm production is forecast.

Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24 hours. The largest was at Jan 22 2025 1108 UTC.

Radio Blackout Forecast for Jan 22-Jan 24 2025
Jan 22Jan 23Jan 24
R1-R260%60%60%
R3 or greater15%15%15%

Rationale: R1-R2 (Minor-Moderate) radio blackout events are likely, with a slight chance for R3 (Strong) events, over 22-24 Jan due to the flare potential of multiple regions on the visible disk.

Space Weather Overview

Credits

Space Weather Images and Information (excluded from copyright) courtesy of:
NOAA / NWS Space Weather Prediction Center   Mauna Loa Solar Observatory (HAO/NCAR)   SOHO (ESA & NASA)

Powered by Space Weather PHP script by Mike Challis of Long Beach Weather.
Additions by Ken True of Saratoga Weather and Jerry Wilkins of Southeast Lincoln Weather.