:Product: 0601RSGA.txt
:Issued: 2013 Jun 01 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 152 Issued at 2200Z on 01 Jun 2013

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 4 numbered sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is likely to be low with a
slight chance for an M-class flare 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 active to major storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 739 km/s at 01/1114Z. Total IMF reached 24 nT at 01/0758Z. The
maximum southward component of Bz reached -21 nT at 01/0041Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 17174
pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to minor storm levels on day one (02 Jun), quiet to
unsettled levels on day two (03 Jun) and quiet levels on day three (04
Jun).

III.  Event probabilities 02 Jun-04 Jun
Class M    20/20/20
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           01 Jun 106
Predicted   02 Jun-04 Jun 105/110/110
90 Day Mean        01 Jun 123

V.  Geomagnetic A Indices
Observed Afr/Ap 31 May  007/009
Estimated Afr/Ap 01 Jun  033/050
Predicted Afr/Ap 02 Jun-04 Jun  018/020-010/015-007/010

VI.  Geomagnetic Activity Probabilities 02 Jun-04 Jun
A.  Middle Latitudes
Active                35/20/10
Minor Storm           15/05/01
Major-severe storm    05/01/01
B.  High Latitudes
Active                10/15/15
Minor Storm           30/25/20
Major-severe storm    50/30/15