:Product: 19981121RSGA.txt
:Issued: 1998 Nov 21 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 325 ISSUED AT 2200Z ON 21 NOV 1998
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  20/2100Z
TO 21/2100Z:  SOLAR ACTIVITY REMAINED AT LOW LEVELS. REGIONS 8384
(S26W75) AND 8391 (S17E21) EACH PRODUCED ISOLATED C-CLASS SUBFLARES.
NEITHER REGION SHOWED SIGNIFICANT CHANGES IN SIZE OR STRUCTURE
DURING THE DAY. NEW REGION 8392 (S22E74) WAS NUMBERED.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
AT LOW LEVELS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 20/2100Z TO 21/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS.
III.  EVENT PROBABILITIES 22 NOV-24 NOV
CLASS M    20/20/20
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           21 NOV 121
PREDICTED   22 NOV-24 NOV  115/115/120
90 DAY MEAN        21 NOV 131
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 20 NOV  009/012
ESTIMATED AFR/AP 21 NOV  008/010
PREDICTED AFR/AP 22 NOV-24 NOV  005/010-005/010-010/015
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 22 NOV-24 NOV
A.  MIDDLE LATITUDES
ACTIVE                10/10/20
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                10/10/20
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01