[Ips-geo-warning] IPS GEOMAGNETIC WARNING

[rwc]

SUBJ: IPS GEOMAGNETIC DISTURBANCE WARNING 02/36
ISSUED AT 22/2228Z OCTOBER 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A CORONAL HOLE IS NEARING THE CENTRE OF THE
SOLAR DISK. THIS HOLE HAS A LARGE LONGITUDINAL
EXTENT WHICH MAY CAUSE AN EXTENDED PERIOD OF 
MILD TO MODERATE GEOMAGNETIC ACTIVITY DURING
INTERVAL 26-29 OCT.

NOTE:
THE NORTH-SOUTH COMPONENT OF THE INTERPLANETARY
MAGNETIC FIELD IS CURRENTLY MILDLY NORTHWARD, A
CONDITION THAT REDUCES THE GEOEFFECTIVENESS OF
SOLAR ACTIVITY. IF THIS NORTHWARD ORIENTATION 
PERSISTS THE HIGH SPEED SOLAR WIND STREAM EFFECTS 
FROM THIS HOLE WILL BE REDUCED/MINIMAL.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED
FROM 26-29 OCTOBER 2002
-------------------------------------------------------------
GEOMAGNETIC ACTIVITY FORECAST 
26-27 Oct:  unsettled to active
28-29 Oct:  active, chance minor storm periods.


IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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