[Ips-geo-warning] IPS GEOMAGNETIC WARNING

[rwc]

SUBJ: IPS GEOMAGNETIC DISTURBANCE WARNING 02/21
ISSUED AT 04/2259Z JULY 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

ACE EPAM SHOCK PRECURSOR DATA CHANNEL SHOWS AN 
INCREASING ION FLUX TREND SECOND HALF OF 04 JULY. 
FLUX LEVELS ARE CURRENTLY BELOW FIRST PRECURSOR 
ALERT THRESHOLD.  THIS MAY INDICATE THAT A WEAK 
SHOCK FROM RECENT CME ACTIVITY IS ENROUTE, POSSIBLY 
ARRIVING 05 JULY. 

ALSO, A NORTH-POLAR EXTENSION CORONAL HOLE IS CURRENTLY
NEAR SOLAR CENTRAL-MERIDAN AND IS EXPECTED TO PRODOUCE
ACTIVE PERIODS ON 07 JULY.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED
FROM 05-07 JULY 2002
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GEOMAGNETIC ACTIVITY FORECAST 
05 Jul:  Unsettled to Active
06 Jul:  Unsettled to Active
07 Jul:  active, chance minor storm periods.


IPS Radio and Space Services      | email: asfc at ips.gov.au
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