Space Weather

Space Weather Observations, Alerts, and Forecast

Product: 3-Day Forecast - Issued: 2025 Feb 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 Feb 22-Feb 24 2025 is 3.00 (below NOAA Scale levels).

NOAA Kp index breakdown Feb 22-Feb 24 2025
Feb 22Feb 23Feb 24
00-03UT3.001.671.33
03-06UT0.671.331.33
06-09UT0.671.332.00
09-12UT1.331.332.00
12-15UT1.331.332.33
15-18UT1.331.672.33
18-21UT1.671.672.67
21-00UT1.671.332.67

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

Rationale: There is a slight chance for S1 (Minor) solar radiation storms over 22-24 Feb.

Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24 hours. The largest was at Feb 21 2025 1435 UTC.

Radio Blackout Forecast for Feb 22-Feb 24 2025
Feb 22Feb 23Feb 24
R1-R240%40%40%
R3 or greater10%10%10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts, and a slight chance for R3 or greater events, over 22-24 Feb.

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.