:Product: 19970914RSGA.txt
:Issued: 1997 Sep 14 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 257 ISSUED AT 2200Z ON 14 SEP 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  13/2100Z
TO 14/2100Z:  SOLAR ACTIVITY WAS LOW. REGION 8083 (S27W85) APPEARED
TO BE DECAYING AS IT SLID TOWARD THE LIMB. THIS REGION PRODUCED A
C2.8/SF FLARE AT 14/0255Z. TWO UNCORRELATED C1 X-RAY BURSTS COULD BE
ATTRIBUTED TO THIS REGION. REGION 8084 (N22W53) PRODUCED A C1/SF
FLARE AT 14/2016Z. THIS REGION HAS DECAYED SLIGHTLY OVER THE PAST 24
HOURS AND IS NOW AN ESO GROUP OF 12 SPOTS IN A BETA-GAMMA
CONFIGURATION. REGION 8085 (S26W25) PRODUCED A C2.7/1F FLARE AT
14/1115Z. THIS REGION ALSO HAS DECAYED SLIGHTLY BUT IS STILL AN FKI
GROUP OF 16 SPOTS IN A BETA CONFIGUARATION. REGION 8086 (N28E38)
PRODUCED A C1.5/SF FLARE AT 14/1702Z. THIS REGION IS RELATIVELY
UNCHANGED AS A CSO GROUP OF 5 SPOTS IN A BETA CONFIGURATION. THE
REMAINDER OF THE DISK AND LIMB IS RELATIVELY QUIET.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW. THE SPOTTED GROUPS REMAINING ON THE VISIBLE DISK HAVE A GOOD
CHANCE OF CONTINUED C-CLASS ACTIVITY AND A CHANCE OF ISOLATED
M-CLASS ACTIVITY.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 13/2100Z TO 14/2100Z:
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET TO UNSETTLED WITH A SINGLE
PERIOD OF ACTIVE LEVELS AT ABOUT 14/1000Z.. THE GREATER THAN 2 MEV
ENERGETIC ELECTRONS REMAINED AT HIGH LEVELS.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE ENTIRE FORECAST PERIOD.
III.  EVENT PROBABILITIES 15 SEP-17 SEP
CLASS M    25/25/25
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           14 SEP 103
PREDICTED   15 SEP-17 SEP  100/100/100
90 DAY MEAN        14 SEP 079
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 13 SEP  009/010
ESTIMATED AFR/AP 14 SEP  012/010
PREDICTED AFR/AP 15 SEP-17 SEP  010/010-010/010-010/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 15 SEP-17 SEP
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
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