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Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 69 Issued at 2200Z on 10 Mar 2025IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 5 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 (11 Mar, 12 Mar,
13 Mar).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 686 km/s at 10/0630Z. Total IMF reached 7
nT at 10/2014Z. The maximum southward component of Bz reached -5 nT at
09/2121Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 2397 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to active levels on days one and three (11 Mar, 13
Mar) and quiet to active levels on day two (12 Mar).
III. Event Probabilities 11 Mar to 13 Mar
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Mar 149 Predicted 11 Mar-13 Mar 160/165/165 90 Day Mean 10 Mar 188
V. Geomagnetic A Indices
Observed Afr/Ap 09 Mar 024/030 Estimated Afr/Ap 10 Mar 014/017 Predicted Afr/Ap 11 Mar-13 Mar 015/020-009/012-012/015
VI. Geomagnetic Activity Probabilities 11 Mar to 13 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 35% |
| Minor storm | 10% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 40% | 35% | 45% |
All times in UTC
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Space weather facts
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| Last M-flare | 2025/03/21 | M1.2 |
| Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
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