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Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 60 Issued at 2200Z on 01 Mar 2025IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 01-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 event observed at
01/0830Z from Region 4010 (N24E19). 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 (02 Mar, 03 Mar,
04 Mar).
IIA. Geophysical Activity Summary 28-2100Z to 01-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 823 km/s at 01/1850Z. Total IMF reached 8
nT at 28/2257Z. The maximum southward component of Bz reached -5 nT at
01/0231Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 618 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (02 Mar), quiet to unsettled
levels on day two (03 Mar) and quiet levels on day three (04 Mar).
III. Event Probabilities 02 Mar to 04 Mar
| Class M | 25% | 25% | 25% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Mar 145 Predicted 02 Mar-04 Mar 145/145/145 90 Day Mean 01 Mar 190
V. Geomagnetic A Indices
Observed Afr/Ap 28 Feb 021/030 Estimated Afr/Ap 01 Mar 015/019 Predicted Afr/Ap 02 Mar-04 Mar 011/012-008/008-006/005
VI. Geomagnetic Activity Probabilities 02 Mar to 04 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 25% |
| Major-severe storm | 40% | 25% | 25% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |