:Product: 19970530RSGA.txt
:Issued: 1997 May 30 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 150 ISSUED AT 2200Z ON 30 MAY 1997
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  29/2100Z
TO 30/2100Z:  SOLAR ACTIVITY WAS VERY LOW. REGION 8047 (N27E31)
REMAINS STABLE AS A 3 SPOT 'CRO' BETA GROUP, WHILE REGION 8046
(S26W29) HAS DECAYED INTO A SPOTLESS PLAGE. NEW REGIONS 8048
(S28E56) AND 8049 (S26E17), BOTH SINGLE SPOT 'AXX' GROUPS, WERE
NUMBERED TODAY.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 29/2100Z TO 30/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN QUIET AT ALL LATITUDES FOR THE PAST 24
HOURS, EXCEPT FOR AN ISOLATED INTERVAL OF UNSETTLED CONDITIONS AT
HIGH LATITUDES DURING THE PERIOD 30/1500-1800Z.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET FOR THE NEXT THREE DAYS, WITH THE CHANCE
FOR ISOLATED PERIODS OF UNSETTLED CONDITIONS THROUGHOUT THE FORECAST
PERIOD.
III.  EVENT PROBABILITIES 31 MAY-02 JUN
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           30 MAY 075
PREDICTED   31 MAY-02 JUN  076/076/076
90 DAY MEAN        30 MAY 074
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 29 MAY  004/003
ESTIMATED AFR/AP 30 MAY  006/008
PREDICTED AFR/AP 31 MAY-02 JUN  005/008-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 31 MAY-02 JUN
A.  MIDDLE LATITUDES
ACTIVE                10/10/10
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/15/15
MINOR STORM           10/10/10
MAJOR-SEVERE STORM    01/01/01