:Product: 19990328RSGA.txt
:Issued: 1999 Mar 28 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 087 ISSUED AT 2200Z ON 28 MAR 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  27/2100Z
TO 28/2100Z:  SOLAR ACTIVITY WAS VERY LOW. LITTLE OF INTEREST
OCCURRED. ONE NEW SPOT GROUP WAS NUMBERED, REGION 8502 (S25E71).
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 27/2100Z TO 28/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO PERSIST AT QUIET TO UNSETTLED LEVELS THROUGHOUT THE
PERIOD. A HISH SPEED STREAM SHOULD ELEVATE ACTIVITY SLIGHTLY MARCH
30-31.
III.  EVENT PROBABILITIES 29 MAR-31 MAR
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           28 MAR 103
PREDICTED   29 MAR-31 MAR  105/110/110
90 DAY MEAN        28 MAR 139
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 27 MAR  003/004
ESTIMATED AFR/AP 28 MAR  008/008
PREDICTED AFR/AP 29 MAR-31 MAR  010/008-015/015-015/015
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 29 MAR-31 MAR
A.  MIDDLE LATITUDES
ACTIVE                20/25/25
MINOR STORM           05/10/10
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                20/25/25
MINOR STORM           05/10/10
MAJOR-SEVERE STORM    01/01/01