FROM SPACE ENVIRONMENT SERVICES CENTER, BOULDER, COLORADO
SDF NUMBER 336
JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY.
ISSUED 2200Z 01 DEC 1988
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 30/2100Z
TO 01/2100Z:  SOLAR ACTIVITY WAS LOW. SEVERAL B- AND C-CLASS
FLARES OCCURRED DURING THE PERIOD, THE BULK OF WHICH WERE
PRODUCED BY REGION 5261 (N18E48) AND NEW REGION 5262 (S14E21).
REGION 5254 (S18W11) APPEARED TO ENTER A SLOW DECAY PHASE.
REGION 5260 (N18W06) REMAINED IN A GROWTH PHASE WHICH BEGAN
YESTERDAY, BUT HAS BEEN RELATIVELY QUIET THUS FAR. SURGING WAS
NOTED ON THE NORTHEAST LIMB, POSSIBLY HERALDING THE RETURN OF
OLD REGION 5239.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 30/2100Z TO 01/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO ACTIVE LEVELS
FOR THE PAST 24 HOURS. THE PERIOD OF ACTIVE LEVELS OCCURRED
AT 01/1200-1500Z.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED THROUGH THE PERIOD.
III.  EVENT PROBABILITIES 02 DEC-04 DEC
CLASS M    30/30/30
CLASS X    10/10/10
PROTON     10/10/10
PCAF       GREEN
IV.  OTTAWA 10.7 CM FLUX
OBSERVED           01 DEC  155
PREDICTED   02 DEC-04 DEC  159/161/163
90 DAY MEAN        01 DEC  159
V.  GEOMAGNETIC A INDICES
OBSERVED  AFR/AP 30 NOV  032/029
ESTIMATED AFR/AP 01 DEC  006/010
PREDICTED AFR/AP 02 DEC-04 DEC  015/012-010/012-010/015