Viewing archive of Thursday, 8 June 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Jun 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 159 Issued at 2200Z on 08 Jun 2023IA. 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 C7 event observed at
08/0459Z from Region 3327 (S16E15). There are currently 9 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 Jun, 10 Jun,
11 Jun).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 381 km/s at 07/2234Z. Total IMF reached 10
nT at 07/2233Z. The maximum southward component of Bz reached -6 nT at
08/0353Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 144 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (09 Jun, 11
Jun) and quiet levels on day two (10 Jun).
III. Event Probabilities 09 Jun to 11 Jun
| Class M | 25% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Jun 169 Predicted 09 Jun-11 Jun 168/163/157 90 Day Mean 08 Jun 152
V. Geomagnetic A Indices
Observed Afr/Ap 07 Jun 006/005 Estimated Afr/Ap 08 Jun 010/013 Predicted Afr/Ap 09 Jun-11 Jun 008/008-005/005-007/010
VI. Geomagnetic Activity Probabilities 09 Jun to 11 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 05% | 15% |
| Minor storm | 05% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 15% | 20% |
| Major-severe storm | 10% | 05% | 10% |
All times in UTC
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