Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 152 Issued at 2200Z on 01 Jun 2015
IA. Analysis of Solar Active Regions and Activity from 31/2100Z to 01/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (02 Jun, 03 Jun, 04 Jun).
IIA. Geophysical Activity Summary 31/2100Z to 01/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 398 km/s at 31/2153Z. Total IMF reached 8 nT at 31/2240Z. The maximum southward component of Bz reached -6 nT at 31/2231Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (02 Jun, 03 Jun, 04 Jun).
III. Event probabilities 02 Jun-04 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 01 Jun 100
Predicted 02 Jun-04 Jun 100/105/110
90 Day Mean 01 Jun 125
V. Geomagnetic A Indices
Observed Afr/Ap 31 May 006/005
Estimated Afr/Ap 01 Jun 008/008
Predicted Afr/Ap 02 Jun-04 Jun 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 02 Jun-04 Jun
