Viewing archive of Thursday, 3 June 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Jun 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 154 Issued at 2200Z on 03 Jun 2021IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 2 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (04
Jun, 05 Jun, 06 Jun).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 321 km/s at 03/0116Z. Total IMF reached 12
nT at 03/0628Z. The maximum southward component of Bz reached -6 nT at
03/0530Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 157 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (04 Jun) and quiet levels
on days two and three (05 Jun, 06 Jun).
III. Event Probabilities 04 Jun to 06 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Jun 076 Predicted 04 Jun-06 Jun 075/075/075 90 Day Mean 03 Jun 077
V. Geomagnetic A Indices
Observed Afr/Ap 02 Jun 005/005 Estimated Afr/Ap 03 Jun 008/008 Predicted Afr/Ap 04 Jun-06 Jun 008/008-005/005-006/005
VI. Geomagnetic Activity Probabilities 04 Jun to 06 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 25% | 10% | 10% |
All times in UTC
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