:Product: Report of Solar-Geophysical Activity
:Issued: 2008 Jun 27 2203 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 179 Issued at 2200Z on 27 Jun 2008
IA.  Analysis of Solar Active Regions and Activity from  26/2100Z
to 27/2100Z:  Solar activity was very low. No flares occurred during
the past 24 hours and the solar disk remains spotless.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z:
The geomagnetic field was mostly quiet to unsettled. An isolated
active period was observed between 0000 - 0300Z.  Solar wind speed
ranged from 590 - 675 km/s during the forecast period. The solar
wind observations were consistent with a high speed stream from a
favorably positioned coronal hole. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be mostly unsettled with a chance for isolated active
periods on day one (28 June). Conditions are expected to decline to
quiet to unsettled levels on days two and three (29 - 30 June).
III.  Event Probabilities 28 Jun-30 Jun
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           27 Jun 066
Predicted   28 Jun-30 Jun  065/065/065
90 Day Mean        27 Jun 068
V.  Geomagnetic A Indices
Observed Afr/Ap 26 Jun  017/016
Estimated Afr/Ap 27 Jun  008/008
Predicted Afr/Ap 28 Jun-30 Jun  007/010-005/005-005/005
VI.  Geomagnetic Activity Probabilities 28 Jun-30 Jun
A.  Middle Latitudes
Active                20/10/05
Minor storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/10/10
Minor storm           10/01/01
Major-severe storm    01/01/01