Product: 3-Day Forecast
- Issued: 2026 Feb 27 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 27-Mar 01 2026 is 4.33 (below NOAA Scale levels).
| Feb 27 | Feb 28 | Mar 01 | |
|---|---|---|---|
| 00-03UT | 3.00 | 3.00 | 3.33 |
| 03-06UT | 2.00 | 2.67 | 4.33 |
| 06-09UT | 2.33 | 1.67 | 4.00 |
| 09-12UT | 2.00 | 1.67 | 3.00 |
| 12-15UT | 2.00 | 1.33 | 2.67 |
| 15-18UT | 2.00 | 1.00 | 2.67 |
| 18-21UT | 2.33 | 2.67 | 3.00 |
| 21-00UT | 3.00 | 3.33 | 3.00 |
Rationale: There is a chance for G1 (Minor) storm levels, on 28 Feb - 01 Mar, due to the anticipated arrival of a CME that left the Sun on 25 Feb.
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 27 | Feb 28 | Mar 01 | |
|---|---|---|---|
| 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 27 | Feb 28 | Mar 01 | |
|---|---|---|---|
| R1-R2 | 25% | 25% | 25% |
| R3 or greater | 5% | 5% | 5% |
Rationale: There is a chance for isolated R1-R2 (Minor-Moderate) radio blackouts through 01 Mar.
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.