:Product: 0625RSGA.txt
:Issued: 2008 Jun 25 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 177 Issued at 2200Z on 25 Jun 2008
IA.  Analysis of Solar Active Regions and Activity from  24/2100Z
to 25/2100Z:  Solar activity was very low. No flares were observed
during the past 24 hours.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low for the next three days (26-28 June).
IIA.  Geophysical Activity Summary 24/2100Z to 25/2100Z:
The geomagnetic field has been quiet to active for the past 24 hours.
A small increase in the solar wind velocity at ACE was observed:
velocity reached approximately 450 km/s by the end of the period. Bz
fluctuated with values ranging up to +/- 10 nT during the past 24
hours. These signatures are consistent with a weak high speed stream
from a coronal hole. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels at the beginning of the
period and dropped below threshold at 24/2205Z.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled with a chance of isolated active
periods during the next two days ( 26-27 June). The activity is
expected to decrease to quiet levels on the third day (28 June).
III.  Event Probabilities 26 Jun-28 Jun
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           25 Jun 066
Predicted   26 Jun-28 Jun  066/066/066
90 Day Mean        25 Jun 069
V.  Geomagnetic A Indices
Observed Afr/Ap 24 Jun  003/004
Estimated Afr/Ap 25 Jun  010/010
Predicted Afr/Ap 26 Jun-28 Jun  007/008-007/008-005/005
VI.  Geomagnetic Activity Probabilities 26 Jun-28 Jun
A.  Middle Latitudes
Active                10/10/10
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/10/10
Minor storm           05/05/05
Major-severe storm    01/01/01