Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 7 July 2020

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 189 Issued at 2200Z on 07 Jul 2020

IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk.

IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (08 Jul, 09 Jul, 10 Jul).

IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 512 km/s at 06/2101Z. Total IMF reached 5 nT at 07/0201Z. The maximum southward component of Bz reached -2 nT at 07/1019Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 222 pfu.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (08 Jul, 09 Jul) and quiet levels on day three (10 Jul).

III. Event probabilities 08 Jul-10 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green

IV. Penticton 10.7 cm Flux
Observed 07 Jul 068
Predicted 08 Jul-10 Jul 068/068/068
90 Day Mean 07 Jul 069

V. Geomagnetic A Indices
Observed Afr/Ap 06 Jul 006/004
Estimated Afr/Ap 07 Jul 005/005
Predicted Afr/Ap 08 Jul-10 Jul 007/008-008/008-006/005

VI. Geomagnetic Activity Probabilities 08 Jul-10 Jul
A. Middle Latitudes
Active 20/20/05
Minor Storm 05/05/01
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor Storm 25/25/15
Major-severe storm 25/25/10