:Product: 19970430RSGA.txt
:Issued: 1997 Apr 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 120 ISSUED AT 2200Z ON 30 APR 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  29/2100Z
TO 30/2100Z:  SOLAR ACTIVITY WAS VERY LOW. THE VISIBLE DISK IS NOW
SPOTLESS.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE ENTIRE FORECAST PERIOD.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 29/2100Z TO 30/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED, WITH ONE PERIOD OF
ACTIVE LEVELS AT MID LATITUDES ABOUT 30/0600Z.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN QUIET TO UNSETTLED FOR THE ENTIRE FORECAST
PERIOD.
III.  EVENT PROBABILITIES 01 MAY-03 MAY
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           30 APR 073
PREDICTED   01 MAY-03 MAY  074/074/076
90 DAY MEAN        30 APR 074
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 29 APR  003/004
ESTIMATED AFR/AP 30 APR  009/005
PREDICTED AFR/AP 01 MAY-03 MAY  010/012-010/012-010/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 01 MAY-03 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