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Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 66 Issued at 2200Z on 07 Mar 2025IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
07/2100Z from Region 4016 (S26E09). There are currently 7 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (08 Mar, 09 Mar,
10 Mar).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 849 km/s at 07/0536Z. Total IMF reached 9
nT at 07/0759Z. The maximum southward component of Bz reached -7 nT at
07/0613Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1027 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (08 Mar), quiet to minor
storm levels on day two (09 Mar) and unsettled to minor storm levels on
day three (10 Mar).
III. Event Probabilities 08 Mar to 10 Mar
| Class M | 40% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Mar 147 Predicted 08 Mar-10 Mar 150/150/155 90 Day Mean 07 Mar 188
V. Geomagnetic A Indices
Observed Afr/Ap 06 Mar 006/006 Estimated Afr/Ap 07 Mar 008/008 Predicted Afr/Ap 08 Mar-10 Mar 008/012-015/020-019/025
VI. Geomagnetic Activity Probabilities 08 Mar to 10 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 40% |
| Minor storm | 05% | 25% | 30% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 30% | 25% | 25% |
| Major-severe storm | 35% | 60% | 65% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/07 | M1.6 |
| Last geomagnetic storm | 2025/02/28 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 120.3 -34.4 |
| Last 30 days | 139.7 -7.5 |