| Report of Solar-Geophysical Activity Issued: 2008 Jan 20 2200 UTC Prepared jointly by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and the U.S. Air Force.
IA. Analysis of Solar Active Regions and Activity from 20/2100Z
to 21/2100Z: Solar activity was at very low levels. The visible
solar disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to continue
at very low levels.
IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z:
The geomagnetic field was at quiet levels. Solar wind speed
measurements from the ACE spacecraft have been declining. At the
end of the summary period wind speed was below 550 km/s. The
greater than 2 MeV electron flux at geosynchronous orbit was at high
levels again today.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to remain at quiet levels throughout the forecast period
(22 - 24 January).
For current space weather conditions please refer to:
NOAA Space Weather Scale descriptions can be found at www.sec.noaa.gov/NOAAscales |