Status Report

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

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

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Nov 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 322 Issued at 2200Z on 18 Nov 2010
IA. Analysis of Solar Active Regions and Activity from 17/2100Z
to 18/2100Z: Solar activity was very low. Visible active regions
remained stable and quiet.
IB. Solar Activity Forecast: Solar activity is expected to be very
IIA. Geophysical Activity Summary 17/2100Z to 18/2100Z:
The geomagnetic field was quiet. Solar wind speed has increased to
about 550 km/s over the past 24 hours. Observations suggest that
this increase is in response to a high-speed stream associated with
coronal hole number 78 in the northwest hemisphere. The greater than
2 MeV electron flux at geosynchronous orbit reached high levels
during the period.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be mostly quiet.
III. Event Probabilities 19 Nov-21 Nov
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 18 Nov 087
Predicted 19 Nov-21 Nov 086/084/084
90 Day Mean 18 Nov 081
V. Geomagnetic A Indices
Observed Afr/Ap 17 Nov 003/004
Estimated Afr/Ap 18 Nov 005/005
Predicted Afr/Ap 19 Nov-21 Nov 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 19 Nov-21 Nov
A. Middle Latitudes
Active 10/10/10
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor storm 01/01/01
Major-severe storm 01/01/01

SpaceRef staff editor.