Viewing archive of Thursday, 4 June 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jun 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 156 Issued at 2200Z on 04 Jun 2020IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z 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 slight chance for a C-class flare on days one, two, and three (05
Jun, 06 Jun, 07 Jun).
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 355 km/s at 04/2017Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 146 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (05 Jun) and quiet to unsettled levels
on days two and three (06 Jun, 07 Jun).
III. Event Probabilities 05 Jun to 07 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Jun 070 Predicted 05 Jun-07 Jun 072/072/072 90 Day Mean 04 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 03 Jun 003/004 Estimated Afr/Ap 04 Jun 004/004 Predicted Afr/Ap 05 Jun-07 Jun 006/005-007/008-008/008
VI. Geomagnetic Activity Probabilities 05 Jun to 07 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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