Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 18 July 2010

By SpaceRef Editor
July 18, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jul 18 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 199 Issued at 2200Z on 18 Jul 2010
IA. Analysis of Solar Active Regions and Activity from 17/2100Z
to 18/2100Z: Solar activity was very low. Region 1087 (N24W48) has
a simple alpha magnetic classification. A further analysis of the
SOHO/LASCO imagery from yesterday show a CME was observed on C3
imagery which can be correlated with the C2 x-ray flare at 17/1801Z.
This event does not seem to be Earth directed.
IB. Solar Activity Forecast: Solar activity is expected to be very
low with a slight chance for a C-class flare from Region 1087.
IIA. Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet levels for the next three days (19-21 July).
III. Event Probabilities 19 Jul-21 Jul
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 18 Jul 077
Predicted 19 Jul-21 Jul 075/074/074
90 Day Mean 18 Jul 074
V. Geomagnetic A Indices
Observed Afr/Ap 17 Jul 001/002
Estimated Afr/Ap 18 Jul 001/003
Predicted Afr/Ap 19 Jul-21 Jul 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 19 Jul-21 Jul
A. Middle Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 05/05/05
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.