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Solar activity report
Report of Solar-Geophysical Activity 2023 Mar 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 64 Issued at 2200Z on 05 Mar 2023IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z 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
05/0252Z from Region 3238 (N09W18). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(06 Mar, 07 Mar, 08 Mar).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic
field has been at unsettled to active levels for the past 24 hours.
Solar wind speed reached a peak of 630 km/s at 05/1336Z. Total IMF
reached 8 nT at 05/1459Z. The maximum southward component of Bz reached
-6 nT at 05/1341Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 6750 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (06 Mar), quiet to
active levels on day two (07 Mar) and quiet to unsettled levels on day
three (08 Mar).
III. Event Probabilities 06 Mar to 08 Mar
| Class M | 55% | 55% | 55% |
| Class X | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Mar 180 Predicted 06 Mar-08 Mar 185/190/200 90 Day Mean 05 Mar 170
V. Geomagnetic A Indices
Observed Afr/Ap 04 Mar 010/012 Estimated Afr/Ap 05 Mar 017/024 Predicted Afr/Ap 06 Mar-08 Mar 016/020-015/016-008/008
VI. Geomagnetic Activity Probabilities 06 Mar to 08 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 45% | 30% | 25% |
| Minor storm | 25% | 10% | 10% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 15% | 15% |
| Minor storm | 20% | 30% | 30% |
| Major-severe storm | 65% | 40% | 40% |
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| Monthly mean Sunspot Number | |
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