Viewing archive of Thursday, 27 February 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Feb 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 58 Issued at 2200Z on 27 Feb 2025IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 28 Feb to 02 Mar
| Class M | 55% | 55% | 25% |
| Class X | 10% | 10% | 05% |
| Proton | 10% | 10% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Feb 170 Predicted 28 Feb-02 Mar 170/160/155 90 Day Mean 27 Feb 191
V. Geomagnetic A Indices
Observed Afr/Ap 26 Feb 013/013 Estimated Afr/Ap 27 Feb 024/031 Predicted Afr/Ap 28 Feb-02 Mar 017/018-011/012-007/010
VI. Geomagnetic Activity Probabilities 28 Feb to 02 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 20% |
| Minor storm | 20% | 10% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 50% | 40% | 30% |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Oulu, Rovaniemi, SodankyläArkhangelsk, Murmansk, Vorkuta
Luleå
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
KuopioBergen, Trondheim
Sundsvall, Umeå
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
Helsinki, Tampere, TurkuPetrozavodsk, Syktyvkar
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Minor R1 radio blackout in progress (≥M1 - current: M1.05)
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/04/04 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 148 +13.8 |
| Last 30 days | 130.9 -15.2 |