[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 0030 UT on 29 Sep 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 16/38
ISSUED AT 0022UT/29 SEPTEMBER 2016
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

The geomagnetic conditions are expected to vary between active 
levels to major storms for the next three days. This is because 
the solar winds are expected to be in excess of 600 km/s associated 
with a very large positive polarity coronal hole. The storm intensities 
are expected to be slightly stronger than that observed in the 
previous two solar rotations (previous rotation Ap was 32) associated 
with this coronal hole because the earth-sun coupling efficiency 
is highest during the equinox periods. Thus there is chance that 
aurora may be visible on the local nights of 29 September from 
Tasmania and some parts of Victoria, Australia.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 29 SEPTEMBER 2016 TO 01 OCTOBER 2016
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
29 Sep:  Minor Storm
30 Sep:  Minor Storm
01 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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