Viewing archive of Wednesday, 9 June 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Jun 10 0015 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 160 Issued at 2200Z on 09 Jun 2021IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
09/1159Z. 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 (10
Jun, 11 Jun, 12 Jun).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar
wind speed reached a peak of 433 km/s at 08/2215Z. Total IMF reached 3
nT at 08/2227Z. The maximum southward component of Bz reached -2 nT.
Electrons greater than 2 MeV at geosynchronous orbit reached a peak
level of 149 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (10 Jun, 11 Jun, 12
Jun).
III. Event Probabilities 10 Jun to 12 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Jun 079 Predicted 10 Jun-12 Jun 078/075/075 90 Day Mean 09 Jun 076
V. Geomagnetic A Indices
Observed Afr/Ap 08 Jun 005/005 Estimated Afr/Ap 09 Jun 004/004 Predicted Afr/Ap 10 Jun-12 Jun 007/005-007/005-006/005
VI. Geomagnetic Activity Probabilities 10 Jun to 12 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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