Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 153 Issued at 2200Z on 02 Jun 2015
IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: 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 02/0702Z from the northeast limb. 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 (03 Jun, 04 Jun, 05 Jun).
IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 374 km/s at 02/0305Z. Total IMF reached 7 nT at 02/0734Z. The maximum southward component of Bz reached -3 nT at 02/1609Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (03 Jun, 04 Jun, 05 Jun).
III. Event probabilities 03 Jun-05 Jun
Class M 01/01/01
Class X 01/01/01
IV. Penticton 10.7 cm Flux
Observed 02 Jun 101
Predicted 03 Jun-05 Jun 105/110/110
90 Day Mean 02 Jun 124
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jun 009/008
Estimated Afr/Ap 02 Jun 005/005
Predicted Afr/Ap 03 Jun-05 Jun 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 03 Jun-05 Jun