:Product: 19981217SGAS.txt
:Issued: 1998 Dec 17 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 351 ISSUED AT 0245Z ON 17 DEC 1998
THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 16 DEC
A.  ENERGETIC EVENTS
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP
NONE
B.  PROTON EVENTS:  NONE
C.  GEOMAGNETIC ACTIVITY SUMMARY:  QUIET TO ACTIVE.
D.  STRATWARM:  STRATWARM ALERT EXISTS STRATWARM WEDNESDAY
A VERY STRONG WARMING CONTINUES OVER SIBERIA, ALASKA AND
THE SIBERIAN/CANADIAN ARCTIC.  TEMPERATURE GRADIENT REVERSED
BETWEEN 60N AND THE POLE AT 50HPA AND ABOVE UNTIL THE UPPER-
MOST STRATOSPHERIC LEVELS.  MEAN ZONAL WIND AT 60N DECREASING.
E.  DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES)
10 CM 141  SSN 118  AFR/AP 009/011   X-RAY BACKGROUND B4.6
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 2.0E+05   GT 10 MEV 1.5E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 6.40E+06 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 3 2 3 3 1 3 2 0 PLANETARY 3 2 4 3 3 3 2 0
F.  COMMENTS:  NONE