:Product: 19990330RSGA.txt
:Issued: 1999 Mar 30 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 089 ISSUED AT 2200Z ON 30 MAR 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  29/2100Z
TO 30/2100Z:  SOLAR ACTIVITY WAS LOW DUE TO A SINGLE C1/SF EVENT AT
29/2216UT FROM REGION 8502 (S27E45). ACTIVITY WAS VERY LOW FOR THE
REMAINDER OF THE DAY. ONE NEW SPOT GROUP WAS NUMBERED, REGION 8504
(S28E61).
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW WITH A CHANCE OF ISOLATED C-CLASS EVENTS FROM REGION 8502.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 29/2100Z TO 30/2100Z:
THE GEOMAGNETIC FIELD WAS UNSETTLED TO ACTIVE. THIS ELEVATED ACTIVITY
WAS PROBABLY DUE TO A HIGH SPEED CORONAL HOLE STREAM.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED. A HIGH SPEED STREAM COULD
CONTINUE TO ELEVATE ACTIVITY SLIGHTLY OVER THE NEXT THREE DAYS.
III.  EVENT PROBABILITIES 31 MAR-02 APR
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           30 MAR 105
PREDICTED   31 MAR-02 APR  110/110/115
90 DAY MEAN        30 MAR 137
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 29 MAR  021/024
ESTIMATED AFR/AP 30 MAR  015/015
PREDICTED AFR/AP 31 MAR-02 APR  015/012-015/014-015/014
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 31 MAR-02 APR
A.  MIDDLE LATITUDES
ACTIVE                25/25/25
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                25/25/25
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    01/01/01