[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 0037 UT on 26 Sep 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 17/48
ISSUED AT 0036UT/26 SEPTEMBER 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A large recurrent Northern Hemisphere polar coronal hole will 
soon reach geoeffective location on the solar disk. A possible 
corotating interaction region associated with the coronal hole 
is expected to affect earth from late UT day 27 September. Expect 
an increase in geomagnetic activity to Active levels with isolated 
periods of Minor Storm levels UT day 27-28 August and Unsettled 
to Active levels on 29 August. There is some chance that aurora 
may be visible on the local night of 28 September from the Southern 
most regions of Australia.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 27-29 SEPTEMBER 2017
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
27 Sep:  Active to Minor Storm
28 Sep:  Active to Minor Storm
29 Sep:  Unsettled to Active

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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