:Product: 19990426RSGA.txt
:Issued: 1999 Apr 26 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 116 ISSUED AT 2200Z ON 26 APR 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  25/2100Z
TO 26/2100Z:  SOLAR ACTIVITY WAS VERY LOW. ONLY A FEW MINOR B-CLASS
FLARES OCCURRED. REGION 8524 (N22E26) CONTINUED TO GROW.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. AN ISOLATED C-CLASS FLARE IS POSSIBLE IN REGION 8524.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 25/2100Z TO 26/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III.  EVENT PROBABILITIES 27 APR-29 APR
CLASS M    05/05/05
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           26 APR 105
PREDICTED   27 APR-29 APR  105/105/105
90 DAY MEAN        26 APR 128
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 25 APR  005/005
ESTIMATED AFR/AP 26 APR  006/010
PREDICTED AFR/AP 27 APR-29 APR  010/015-010/015-010/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 27 APR-29 APR
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/15/15
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    01/01/01