Joint USAF/NOAA Report of Solar and Geophysical Activity 24 June 2010

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jun 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 Report of Solar and Geophysical Activity
SDF Number 175 Issued at 2200Z on 24 Jun 2010
IA. Analysis of Solar Active Regions and Activity from 23/2100Z
to 24/2100Z: Solar activity was very low. Region 1082 (N27W65) was
quiet and stable.
IB. Solar Activity Forecast: Solar activity is expected to remain
at very low levels with a slight chance for an isolated C-class
event through days one and two (25 – 26 June) as Region 1082 rotates
around the limb.
IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominately quiet through late on day one (25
June). Field activity is expected to increase to unsettled to
active levels, with a slight chance of isolated minor storm periods,
the remainder of day one through day three (26 – 27 June). The
increase in activity is due to a recurrent coronal hole high speed
stream.
III. Event Probabilities 25 Jun-27 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 24 Jun 074
Predicted 25 Jun-27 Jun 075/076/077
90 Day Mean 24 Jun 075
V. Geomagnetic A Indices
Observed Afr/Ap 23 Jun 002/004
Estimated Afr/Ap 24 Jun 002/005
Predicted Afr/Ap 25 Jun-27 Jun 008/008-015/015-012/012
VI. Geomagnetic Activity Probabilities 25 Jun-27 Jun
A. Middle Latitudes
Active 10/25/20
Minor storm 01/15/10
Major-severe storm 01/05/01
B. High Latitudes
Active 10/30/25
Minor storm 01/20/15
Major-severe storm 01/05/05