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Solar activity report
Report of Solar-Geophysical Activity 2021 Jun 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 152 Issued at 2200Z on 01 Jun 2021IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (02 Jun,
03 Jun, 04 Jun).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
averaged near 300 km/s. Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 158 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (02 Jun) and quiet to
unsettled levels on days two and three (03 Jun, 04 Jun).
III. Event Probabilities 02 Jun to 04 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jun 075 Predicted 02 Jun-04 Jun 075/075/075 90 Day Mean 01 Jun 077
V. Geomagnetic A Indices
Observed Afr/Ap 31 May 004/004 Estimated Afr/Ap 01 Jun 010/015 Predicted Afr/Ap 02 Jun-04 Jun 014/015-007/008-008/008
VI. Geomagnetic Activity Probabilities 02 Jun to 04 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 25% |
| Major-severe storm | 45% | 25% | 25% |
All times in UTC
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