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Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 65 Issued at 2200Z on 06 Mar 2025IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
06/0415Z from Region 4016 (S26E21). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (07 Mar, 08 Mar, 09 Mar).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 934 km/s at 06/1759Z. Total IMF reached 8
nT at 06/1730Z. The maximum southward component of Bz reached -6 nT at
06/1748Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 333 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (07 Mar), quiet to active levels on day
two (08 Mar) and quiet to minor storm levels on day three (09 Mar).
III. Event Probabilities 07 Mar to 09 Mar
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Mar 150 Predicted 07 Mar-09 Mar 160/165/165 90 Day Mean 06 Mar 189
V. Geomagnetic A Indices
Observed Afr/Ap 05 Mar 004/010 Estimated Afr/Ap 06 Mar 007/007 Predicted Afr/Ap 07 Mar-09 Mar 005/012-008/020-015/025
VI. Geomagnetic Activity Probabilities 07 Mar to 09 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 30% | 40% |
| Minor storm | 01% | 05% | 25% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 20% | 30% | 25% |
| Major-severe storm | 15% | 35% | 60% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/14 | M4.2 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 128.8 -5.4 |
| Last 30 days | 129.1 -15.1 |