[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 1109 UT on 30 Jul 2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Sun Jul 30 21:09:45 EST 2017


SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 17/35
ISSUED AT 1109UT/30 JULY 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A negative equatorial coronal hole has reached geoeffective location 
on the solar disk. Unsettled to active geomagnetic conditions 
are expected for UT day 31 July associated with the anticipated 
arrival of the corotating interaction region driven by the coronal 
hole. On UT day 1 Aug, conditions are expected to be mostly unsettled 
during the passage of subsequent high speed solar wind streams 
associated with the coronal hole.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 31 JULY 2017 TO 01 AUGUST 2017
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
31 Jul:  Unsettled to Active
01 Aug:  Quiet

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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