Viewing archive of Saturday, 8 March 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 67 Issued at 2200Z on 08 Mar 2025IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C3 event observed at
08/1825Z. 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 (09 Mar, 10 Mar,
11 Mar).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 616 km/s at 08/1756Z. Total IMF
reached 18 nT at 08/1606Z. The maximum southward component of Bz reached
-13 nT at 08/1535Z. Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 491 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (09 Mar), unsettled to
minor storm levels on day two (10 Mar) and unsettled to active levels on
day three (11 Mar).
III. Event Probabilities 09 Mar to 11 Mar
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Mar 148 Predicted 09 Mar-11 Mar 150/155/160 90 Day Mean 08 Mar 188
V. Geomagnetic A Indices
Observed Afr/Ap 07 Mar 009/009 Estimated Afr/Ap 08 Mar 011/016 Predicted Afr/Ap 09 Mar-11 Mar 015/020-019/025-015/012
VI. Geomagnetic Activity Probabilities 09 Mar to 11 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 40% | 30% |
| Minor storm | 25% | 30% | 10% |
| Major-severe storm | 05% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 60% | 65% | 40% |
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 | 2025/03/09 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 115 -39.6 |
| Last 30 days | 138.5 -8.6 |