:Product: 20001220SGAS.txt
:Issued: 2000 Dec 20 0245 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 355 Issued at 0245Z on 20 Dec 2000
This report is compiled from data received at SWO on 19 Dec
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
1257 1257 1258                       240
1411 1415 1419  9269 N15W12 C3.0  Sf 190
B.  Proton Events:  None.
C.  Geomagnetic Activity Summary:  The geomagnetic field was mostly
quiet at mid latitudes, and quiet to unsettled at high latitudes for
the past 24 hours.
D.  Stratwarm:  STRATWARM ALERT/TUESDAY/STRATWARM EXISTS.
STRONG STRATOSPHERIC MINOR WARMING CONTINUES.
SPLITTED VORTEX IN THE MIDDLE STRATOSPHERE WITH A
MAJOR CENTER OVER CANADA AND A MINOR CENTER OVER
WESTERN SIBERIA, WEAKENING AT 10HPA. THE ANTICYCLONE OVER
THE NORTH ATLANTIC, MOVING EASTWARD, INTENSIFYING.
THE MINOR WARMING OVER GREENLAND, MOVING NORTHEASTWARD.
THE WARM REGION OVER ASIA, WEAKENING IN THE UPPER STRATOSPHERE
REVERSED TEMPERATURE GRADIENT BETWEEN 60N AND THE POLE.
A WARM REGION OVER THE MEDITERRANEAN SEA.
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 199  SSN 163  Afr/Ap 005/005   X-ray Background C1.3
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 5.4e+04   GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.00e+06 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 2 1 1 2 2 2 2 1 Planetary 2 1 1 2 2 3 3 1
F.  Comments:  None