:Product: 19990613RSGA.txt
:Issued: 1999 Jun 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 164 ISSUED AT 2200Z ON 13 JUN 1999
IA.  ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM  12/2100Z
TO 13/2100Z:  SOLAR ACTIVITY WAS LOW. SEVERAL C-CLASS EVENTS OCCURRED
DURING THE PERIOD FROM FIVE OF THE  ELEVEN SPOTTED REGIONS ON THE
SOLAR DISK. REGION 8569 (N19W45) IS THE LARGEST REGION CLASSIFIED AS
AN EKC WITH 380 MILLIONTHS OF WHITE LIGHT AREA.
IB.  SOLAR ACTIVITY FORECAST:  SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. SEVERAL REGIONS ON THE SOLAR DISK ARE CAPABLE OF
PRODUCING C-CLASS EVENTS AND ISOLATED M-CLASS.
IIA.  GEOPHYSICAL ACTIVITY SUMMARY FROM 12/2100Z TO 13/2100Z:
THE GEOMAGNETIC FIELD WAS PREDOMINATELY QUIET THROUGH THE PERIOD.
IIB.  GEOPHYSICAL ACTIVITY FORECAST:  THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED THROUGH THE FORECAST PERIOD.
III.  EVENT PROBABILITIES 14 JUN-16 JUN
CLASS M    40/40/40
CLASS X    05/05/05
PROTON     05/05/05
PCAF       GREEN
IV.  PENTICTON 10.7 CM FLUX
OBSERVED           13 JUN 168
PREDICTED   14 JUN-16 JUN  165/165/160
90 DAY MEAN        13 JUN 136
V.  GEOMAGNETIC A INDICES
OBSERVED AFR/AP 12 JUN  005/007
ESTIMATED AFR/AP 13 JUN  005/010
PREDICTED AFR/AP 14 JUN-16 JUN  005/008-005/010-005/008
VI.  GEOMAGNETIC ACTIVITY PROBABILITIES 14 JUN-16 JUN
A.  MIDDLE LATITUDES
ACTIVE                20/20/20
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01
B.  HIGH LATITUDES
ACTIVE                25/25/25
MINOR STORM           05/05/05
MAJOR-SEVERE STORM    01/01/01