[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 2258 UT on 02 Dec 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 17/59
ISSUED AT 2256UT/02 DECEMBER 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A recurrent northern hemisphere coronal hole will soon reach 
the geoeffective location on the solar disk. A corotating interaction 
region associated with the coronal hole is expected to effect 
Earth from 04 Dec. Magnetic activity is expected to reach Active 
to Minor Storm levels, Major Storm conditions may occur provided 
IMF Bz will turn southward for a prolonged period.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 04-05 DECEMBER 2017
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
04 Dec:  Quiet to Minor Storm
05 Dec:  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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