Viewing archive of Friday, 21 February 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Feb 21 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 52 Issued at 2200Z on 21 Feb 2025IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 22 Feb to 24 Feb
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 21 Feb 197 Predicted 22 Feb-24 Feb 195/190/185 90 Day Mean 21 Feb 193
V. Geomagnetic A Indices
Observed Afr/Ap 20 Feb 005/002 Estimated Afr/Ap 21 Feb 006/006 Predicted Afr/Ap 22 Feb-24 Feb 006/005-005/005-007/008
VI. Geomagnetic Activity Probabilities 22 Feb to 24 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 15% |
| Minor storm | 20% | 20% | 25% |
| Major-severe storm | 10% | 10% | 20% |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Yellowknife, NTLatest news
X1.9 solar flare, Coronal hole faces Earth
X4.0 solar flare
X5.1 solar flare, G4 geomagnetic storm watch
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Latest alerts
07:15 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 05:59 UTC
Saturday, 6 December 2025
22:15 UTC - Type IV Radio Emission
Begin Time: 06/12/2025 20:57 UTC
22:00 UTC - 10cm Radio Burst
Begin Time: 06/12/2025 20:35 UTC Maximum Time: 06/12/2025 20:36 UTC Duration: 4 minutes. Peak flux: 1100 sfu
22:00 UTC - Type II Radio Emission
Begin Time: 06/12/2025 20:40 UTC Estimated Velocity: 1143km/sec.
21:00 UTC - Solar flare
Strong M8.12 flare from sunspot region 4301
Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |