:Product: 19961218RSGA.txt
:Issued: 1996 Dec 18 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY
SDF NUMBER 353 ISSUED AT 2200Z ON 18 DEC 1996
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  17/2100Z
TO 18/2100Z:  SOLAR ACTIVITY WAS VERY LOW THE PAST 24 HOURS.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 17/2100Z TO 18/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED THE PAST 24 HOURS.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET THE FIRST TWO DAYS AND QUIET TO UNSETTLED THE
LAST DAY OF THE FORECAST PERIOD.
III.  EVENT PROBABILITIES 19 DEC-21 DEC
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           18 DEC 088
PREDICTED   19 DEC-21 DEC  090/092/094
90 DAY MEAN        18 DEC 074
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 17 DEC  011/008
ESTIMATED AFR/AP 18 DEC  005/005
PREDICTED AFR/AP 19 DEC-21 DEC  005/005-005/005-005/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 19 DEC-21 DEC
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/15/15
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01