:Product: 19971213RSGA.txt
:Issued: 1997 Dec 13 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 347 ISSUED AT 2200Z ON 13 DEC 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  12/2100Z
TO 13/2100Z:  SOLAR ACTIVITY WAS VERY LOW. REGION 8116 (N24W67)
PRODUCED A MODERATE DURATION B9/SF AT 12/2232Z. REGIONS 8119
(N31W62) AND 8122 (N30W32) WERE PREDOMINANTLY STABLE. SOME MINOR
MIXED POLARITIES WERE OBSERVED IN REGION 8119.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY SHOULD BE VERY LOW TO
LOW. REGIONS 8119 AND 8122 ARE CAPABLE OF PRODUCING ISOLATED SMALL
C-CLASS EVENTS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 12/2100Z TO 13/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD SHOULD BE
AT QUIET TO SLIGHTLY UNSETTLED LEVELS FOR THE NEXT THREE DAYS.
III.  EVENT PROBABILITIES 14 DEC-16 DEC
CLASS M    05/05/05
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           13 DEC 089
PREDICTED   14 DEC-16 DEC  085/083/080
90 DAY MEAN        13 DEC 093
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 12 DEC  002/002
ESTIMATED AFR/AP 13 DEC  002/008
PREDICTED AFR/AP 14 DEC-16 DEC  005/008-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 14 DEC-16 DEC
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                10/10/05
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01