[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 0633 UT on 20 Apr 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 18/08
ISSUED AT 0631UT/20 APRIL 2018
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Earth is currently under the influence of a high speed stream 
from a negative polarity equatorial coronal hole. Geomagnetic 
activity at Quiet to Active levels is expected and at times may 
reach up to Minor Storm levels if there are notable southward 
Bz periods.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 20-21 APRIL 2018
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
20 Apr:  Quiet to Active
21 Apr:  Quiet 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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