:Product: 19970121RSGA.txt
:Issued: 1997 Jan 21 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 021 ISSUED AT 2200Z ON 21 JAN 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  20/2100Z
TO 21/2100Z:  SOLAR ACTIVITY REMAINED VERY LOW. THE DISK WAS
SPOTLESS.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS FORECAST TO BE VERY
LOW FOR THE NEXT THREE DAYS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 20/2100Z TO 21/2100Z:
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. SOME MID
AND HIGH LATITUDE SITES EXPERIENCED BRIEF ACTIVE CONDITIONS DURING
THE PERIOD.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD SHOULD
REMAIN QUIET TO UNSETTLED FOR 22 JAN. MOSTLY QUIET CONDITIONS ARE
EXPECTED ON 23-24 JAN.
III.  EVENT PROBABILITIES 22 JAN-24 JAN
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           21 JAN 074
PREDICTED   22 JAN-24 JAN  074/074/074
90 DAY MEAN        21 JAN 077
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 20 JAN  006/005
ESTIMATED AFR/AP 21 JAN  012/009
PREDICTED AFR/AP 22 JAN-24 JAN  008/008-005/005-005/005
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 22 JAN-24 JAN
A.  MIDDLE LATITUDES
ACTIVE                15/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01