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Solar activity report
Report of Solar-Geophysical Activity 2023 Jun 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 158 Issued at 2200Z on 07 Jun 2023IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M4 event observed at
07/1146Z from Region 3327 (S16E28). 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 and a slight chance for an X-class flare on
days one, two, and three (08 Jun, 09 Jun, 10 Jun).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 376 km/s at 06/2230Z. Total IMF reached 6 nT at
06/2100Z. The maximum southward component of Bz reached -4 nT at
07/0741Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 163 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (08 Jun), quiet to unsettled
levels on day two (09 Jun) and quiet levels on day three (10 Jun).
Protons have a slight chance of crossing threshold on days one, two, and
three (08 Jun, 09 Jun, 10 Jun).
III. Event Probabilities 08 Jun to 10 Jun
| Class M | 30% | 30% | 30% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Jun 167 Predicted 08 Jun-10 Jun 170/165/165 90 Day Mean 07 Jun 152
V. Geomagnetic A Indices
Observed Afr/Ap 06 Jun 010/007 Estimated Afr/Ap 07 Jun 005/005 Predicted Afr/Ap 08 Jun-10 Jun 009/012-008/008-005/005
VI. Geomagnetic Activity Probabilities 08 Jun to 10 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 05% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 15% |
| Major-severe storm | 20% | 10% | 05% |
All times in UTC
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