:Product: 19980520RSGA.txt
:Issued: 1998 May 20 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
:::::::::: CORRECTED COPY ::::::::::
SDF NUMBER 140 ISSUED AT 2200Z ON 20 MAY 1998
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  19/2100Z
TO 20/2100Z:  SOLAR ACTIVITY WAS LOW, BASED ON A SINGLE UNCORRELATED
C1 X-RAY EVENT THAT OCCURRED AT 20/0038Z.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 19/2100Z TO 20/2100Z:
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED FOR THE PAST 24
HOURS. THE GREATER THAN 2 MEV ELECTRON FLUX WAS MODERATE TO HIGH.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III.  EVENT PROBABILITIES 21 MAY-23 MAY
CLASS M    01/01/01
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           20 MAY 092
PREDICTED   21 MAY-23 MAY  092/094/096
90 DAY MEAN        20 MAY 109
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 19 MAY  007/008
ESTIMATED AFR/AP 20 MAY  008/010
PREDICTED AFR/AP 21 MAY-23 MAY  010/015-010/012-010/010
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 21 MAY-23 MAY
A.  MIDDLE LATITUDES
ACTIVE                01/01/01
MINOR STORM           01/01/01
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                01/01/01
MINOR STORM           01/01/01
MAJOR-SEVERE STORM    01/01/01