:Product: 19970428RSGA.txt
:Issued: 1997 Apr 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 118 ISSUED AT 2200Z ON 28 APR 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  27/2100Z
TO 28/2100Z:  SOLAR ACTIVITY WAS VERY LOW. THERE WAS NO FLARE
ACTIVITY NOTED. THE VISIBLE DISK REMAINS QUIET AND STABLE.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE ENTIRE FORECAST PERIOD.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 27/2100Z TO 28/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET AT ALL LATITUDES.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET WITH BRIEF PERIODS OF UNSETTLED ACTIVITY
FOR THE ENTIRE FORECAST PERIOD.
III.  EVENT PROBABILITIES 29 APR-01 MAY
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           28 APR 072
PREDICTED   29 APR-01 MAY  072/072/074
90 DAY MEAN        28 APR 074
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 27 APR  004/004
ESTIMATED AFR/AP 28 APR  004/008
PREDICTED AFR/AP 29 APR-01 MAY  010/008-010/008-010/012
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 29 APR-01 MAY
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01