:Product: 19990519RSGA.txt
:Issued: 1999 May 19 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 139 ISSUED AT 2200Z ON 19 MAY 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  18/2100Z
TO 19/2100Z:  SOLAR ACTIVITY WAS LOW.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 18/2100Z TO 19/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN QUIET TO UNSETTLED.
III.  EVENT PROBABILITIES 20 MAY-22 MAY
CLASS M    20/20/20
CLASS X    01/01/01
PROTON     01/01/01
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           19 MAY 142
PREDICTED   20 MAY-22 MAY  135/135/135
90 DAY MEAN        19 MAY 129
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 18 MAY  021/023
ESTIMATED AFR/AP 19 MAY  010/012
PREDICTED AFR/AP 20 MAY-22 MAY  008/010-005/008-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 20 MAY-22 MAY
A.  MIDDLE LATITUDES
ACTIVE                30/20/20
MINOR STORM           10/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                35/30/25
MINOR STORM           15/15/10
MAJOR-SEVERE STORM    01/01/01