:Product: 0824RSGA.txt
:Issued: 2016 Aug 24 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 237 Issued at 2200Z on 24 Aug 2016

IA.  Analysis of Solar Active Regions and Activity from 23/2100Z to
24/2100Z: 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 day one (25 Aug) and expected to
be very low with a slight chance for a C-class flare on days two and
three (26 Aug, 27 Aug).

IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 690 km/s at 24/0148Z. Total IMF
reached 17 nT at 23/2254Z. The maximum southward component of Bz reached
-9 nT at 23/2341Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 107 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (25 Aug, 26 Aug)
and quiet levels on day three (27 Aug).

III.  Event probabilities 25 Aug-27 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           24 Aug 078
Predicted   25 Aug-27 Aug 080/080/075
90 Day Mean        24 Aug 084

V.  Geomagnetic A Indices
Observed Afr/Ap 23 Aug  012/018
Estimated Afr/Ap 24 Aug  018/022
Predicted Afr/Ap 25 Aug-27 Aug  009/010-006/006-005/005

VI.  Geomagnetic Activity Probabilities 25 Aug-27 Aug
A.  Middle Latitudes
Active                15/10/10
Minor Storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           20/20/15
Major-severe storm    15/15/10