[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 0233 UT on 10 Oct 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 17/49
ISSUED AT 0232UT/10 OCTOBER 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A recurrent positive polarity Northern hemisphere coronal hole 
will soon reach geoeffective location on the solar disk. A possible 
corotating interaction region associated with the coronal hole 
is expected to effect earth from late UT day 10 October. On the 
subsequent two days (11-12 October) very high solar wind streams 
are expected to emanate from the coronal hole. Active to Minor 
Storm conditions may occur provided IMF Bz turned strongly southward 
for a prolonged period.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 11-12 OCTOBER 2017
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
11 Oct:  Active to Minor Storm
12 Oct:  Active to Minor Storm

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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