Product: 3-Day Forecast
- Issued: 2026 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 5 (NOAA Scale G1). The greatest expected 3 hr Kp for Feb 22-Feb 24 2026 is 5.33 (NOAA Scale G1).
| Feb 22 | Feb 23 | Feb 24 | |
|---|---|---|---|
| 00-03UT | 4.00 | 3.67 | 3.67 |
| 03-06UT | 5.00 (G1) | 4.67 (G1) | 3.67 |
| 06-09UT | 5.33 (G1) | 3.67 | 2.67 |
| 09-12UT | 4.00 | 3.67 | 2.67 |
| 12-15UT | 2.67 | 2.67 | 2.00 |
| 15-18UT | 2.67 | 2.67 | 1.67 |
| 18-21UT | 3.67 | 2.67 | 1.67 |
| 21-00UT | 3.67 | 3.67 | 2.67 |
Rationale: The geomagnetic field is expected to reach G1/G2 (Minor/Moderate) storm levels on 22 Feb, followed by likely G1 storming conditions on 23 Feb, due to CIR effects and negative polarity CH HSS influences.
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.
| Feb 22 | Feb 23 | Feb 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.
Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
| Feb 22 | Feb 23 | Feb 24 | |
|---|---|---|---|
| R1-R2 | 5% | 10% | 10% |
| R3 or greater | 1% | 1% | 1% |
Rationale: There is a slight chance for isolated (R1-R2/Minor-Moderate) radio blackouts over 23-24 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.