:Product: 19990321RSGA.txt
:Issued: 1999 Mar 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 080 ISSUED AT 2200Z ON 21 MAR 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  20/2100Z
TO 21/2100Z:  SOLAR ACTIVITY WAS LOW.  A C1 X-RAY FLARE OCCURRED AT
21/0642UT. NO OPTICAL FLARE REPORTS WERE RECEIVED DURING THE PAST
DAY.  ALL SUNSPOT REGIONS CURRENTLY ON THE DISK ARE RELATIVELY SMALL
AND SIMPLE. REGIONS 8494 (S24W12) AND  8496 (S11W32) ARE GROWING
SLOWLY.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. ISOLATED C-CLASS FLARES ARE POSSIBLE.
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 BE QUIET TO UNSETTLED.
III.  EVENT PROBABILITIES 22 MAR-24 MAR
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           21 MAR 124
PREDICTED   22 MAR-24 MAR  120/115/115
90 DAY MEAN        21 MAR 142
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 20 MAR  003/006
ESTIMATED AFR/AP 21 MAR  008/007
PREDICTED AFR/AP 22 MAR-24 MAR  010/005-005/007-005/009
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 22 MAR-24 MAR
A.  MIDDLE LATITUDES
ACTIVE                15/10/10
MINOR STORM           01/01/01
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/10/10
MINOR STORM           01/01/01
MAJOR-SEVERE STORM    01/01/01