:Product: 19970720RSGA.txt
:Issued: 1997 Jul 20 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 201 ISSUED AT 2200Z ON 20 JUL 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  19/2100Z
TO 20/2100Z:  SOLAR ACTIVITY HAS BEEN VERY LOW.  REGION 8063 (S25
W12) EMERGED TODAY AND IS CURRENTLY A SMALL BXO SPOT GROUP.  X-RAY
BACKGROUND FLUXES HAVE INCREASED SLOWLY OVER THE PAST 12 HOURS.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 19/2100Z TO 20/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET.
III.  EVENT PROBABILITIES 21 JUL-23 JUL
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           20 JUL 071
PREDICTED   21 JUL-23 JUL  072/072/072
90 DAY MEAN        20 JUL 072
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 19 JUL  011/011
ESTIMATED AFR/AP 20 JUL  005/008
PREDICTED AFR/AP 21 JUL-23 JUL  005/008-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 21 JUL-23 JUL
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