[ips-sf] SWS Summary Forecast for 20 July - issued 0333UT/20-Jul-2016 [SEC=UNCLASSIFIED]

[rwc]

On 19 July at 23:00 UT a shock wave was detected in the solar wind.
This shock is probably associated with a CME that was observed by
LASCO instrument on 17 July. Due to the shock wave a geomagnetic
sudden impulse was observed and a geomagnetic storm has commenced. On
20 July geomagnetic conditions may reach major storm levels with a
small chance of isolated severe storm periods. Aurora can be observed
in Tasmania, on the coastline of Victoria and on the southwest coast
of Western Australia.

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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