Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 161 Issued at 2200Z on 10 Jun 2021
IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z:
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 10/0642Z. 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 (11 Jun, 12 Jun, 13 Jun).
IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z:
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 372 km/s at 09/2326Z. Total IMF reached 5 nT at 10/1641Z. The maximum southward component of Bz reached -3 nT at 10/2054Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 151 pfu.
IIB. Geophysical Activity Forecast:
The geomagnetic field is expected to be at quiet levels on days one, two, and three (11 Jun, 12 Jun, 13 Jun).