Viewing archive of Friday, 10 March 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 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 2023IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C7 event observed at
10/0708Z from Region 3245 (S23W18). There are currently 10 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 active levels for the past 24 hours. Solar
wind speed reached a peak of 473 km/s at 10/1100Z. Total IMF reached 8
nT at 10/0656Z. The maximum southward component of Bz reached -6 nT at
10/1527Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1982 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (11 Mar,
12 Mar, 13 Mar).
III. Event Probabilities 11 Mar to 13 Mar
| Class M | 25% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Mar 171 Predicted 11 Mar-13 Mar 172/170/160 90 Day Mean 10 Mar 172
V. Geomagnetic A Indices
Observed Afr/Ap 09 Mar 014/016 Estimated Afr/Ap 10 Mar 009/010 Predicted Afr/Ap 11 Mar-13 Mar 008/008-009/010-008/008
VI. Geomagnetic Activity Probabilities 11 Mar to 13 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 25% | 30% | 25% |
All times in UTC
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