Viewing archive of Tuesday, 25 March 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 84 Issued at 2200Z on 25 Mar 2025IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 26 Mar to 28 Mar
| Class M | 30% | 25% | 25% |
| Class X | 05% | 05% | 01% |
| Proton | 05% | 05% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Mar 156 Predicted 26 Mar-28 Mar 155/155/160 90 Day Mean 25 Mar 185
V. Geomagnetic A Indices
Observed Afr/Ap 24 Mar 018/019 Estimated Afr/Ap 25 Mar 021/030 Predicted Afr/Ap 26 Mar-28 Mar 021/033-018/025-014/018
VI. Geomagnetic Activity Probabilities 26 Mar to 28 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 35% |
| Minor storm | 30% | 20% | 20% |
| Major-severe storm | 15% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 10% |
| Minor storm | 20% | 30% | 25% |
| Major-severe storm | 70% | 50% | 50% |
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
Whitehorse, YTAnchorage, AK, Fairbanks, AK
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Saskatoon, SK, Yellowknife, NTJuneau, AK, Utqiagvik, AK
Latest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
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Latest alerts
04:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 04:56 UTC
01:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 01:32 UTC
Tuesday, 1 April 2025
22:51 UTC - Solar flare
Moderate M2.5 flare
22:30 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.45)
07:15 UTC - 10cm Radio Burst
Begin Time: 01/04/2025 06:45 UTC Maximum Time: 01/04/2025 06:45 UTC Duration: 1 minutes. Peak flux: 190 sfu
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |