:Product: 19970723RSGA.txt
:Issued: 1997 Jul 23 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 204 ISSUED AT 2200Z ON 23 JUL 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  22/2100Z
TO 23/2100Z:  SOLAR ACTIVITY HAS BEEN VERY LOW FOR THE PAST 24 HOURS.
REGION 8062 (N23W08) REGENERATED SPOTS AND GREW TO A D-TYPE GROUP.
REGION 8064 (N24E62) ROTATED INTO BETTER VIEW AND DEVELOPED INTO A
C-TYPE GROUP. THE REMAINDER OF THE DISK WAS QUIET. MINOR SURGING WAS
REPORTED ALONG THE NE LIMB (NE24-28) BETWEEN 1940-1950 UT.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 22/2100Z TO 23/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET FOR THE PAST 24 HOURS.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO PERSIST AT QUIET LEVELS AT MIDDLE AND LOW LATITUDES,
WITH THE POSSIBILITY OF UNSETTLED CONDITIONS AT HIGH LATITUDES.
III.  EVENT PROBABILITIES 24 JUL-26 JUL
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           23 JUL 076
PREDICTED   24 JUL-26 JUL  075/075/075
90 DAY MEAN        23 JUL 072
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 22 JUL  007/004
ESTIMATED AFR/AP 23 JUL  005/008
PREDICTED AFR/AP 24 JUL-26 JUL  005/006-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 24 JUL-26 JUL
A.  MIDDLE LATITUDES
ACTIVE                10/05/10
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