:Product: 19980618RSGA.txt
:Issued: 1998 Jun 18 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 169 ISSUED AT 2200Z ON 18 JUN 1998
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  17/2100Z
TO 18/2100Z:  SOLAR ACTIVITY WAS VERY LOW. REGION 8243 (N17W01)
PRODUCED A FEW SMALL B-CLASS SUBFLARES. THE LARGEST WAS A B2/SF AT
18/1928Z. OTHER REGIONS WERE QUIET.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. SMALL FLARES ARE EXPECTED IN REGION 8243.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 17/2100Z TO 18/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III.  EVENT PROBABILITIES 19 JUN-21 JUN
CLASS M    10/05/05
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           18 JUN 100
PREDICTED   19 JUN-21 JUN  100/100/100
90 DAY MEAN        18 JUN 108
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 17 JUN  002/005
ESTIMATED AFR/AP 18 JUN  005/005
PREDICTED AFR/AP 19 JUN-21 JUN  015/012-015/015-010/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 19 JUN-21 JUN
A.  MIDDLE LATITUDES
ACTIVE                15/15/15
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                15/15/15
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01