:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jun 26 2201 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 177 Issued at 2200Z on 26 Jun 2010
IA.  Analysis of Solar Active Regions and Activity from  25/2100Z
to 26/2100Z:  Solar activity has been very low.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low. An isolated C-class event is still possible on day one (27
June) as Region 1082 (N27W88) approaches the west limb.
IIA.  Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field has been quiet to unsettled with an isolated
active period at 26/0300-0600Z.  Solar wind speed data from ACE
indicated the onset of a coronal hole high speed stream at 26/0215Z
with solar wind speeds increasing to around 450 km/s.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominately unsettled with isolated active periods
for days one thru three (27-29 June). Activity is forecast due to a
recurrent coronal hole high speed stream.
III.  Event Probabilities 27 Jun-29 Jun
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           26 Jun 075
Predicted   27 Jun-29 Jun  077/077/078
90 Day Mean        26 Jun 075
V.  Geomagnetic A Indices
Observed Afr/Ap 25 Jun  008/008
Estimated Afr/Ap 26 Jun  014/015
Predicted Afr/Ap 27 Jun-29 Jun  012/013-010/012-010/010
VI.  Geomagnetic Activity Probabilities 27 Jun-29 Jun
A.  Middle Latitudes
Active                20/10/10
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/15/15
Minor storm           10/10/10
Major-severe storm    01/01/01