[Ips-hf-warning] IPS HF COMMS WARNING issued 2349 UT on 17 Nov 2015 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS PRELIMINARY HF RADIO COMMUNICATIONS WARNING 15/72
ISSUED AT 2349UT/17 NOVEMBER 2015
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Minor to moderate MUF depressions may be expected on 18 and 19 
November, especially on high and some mid latitude locations 
due to an expected rise in geomagnetic activity levels on these 
days due to the effect of a coronal hole and a possible glancing 
blow from the CMEs observed on 15 and 16 November.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 18-19 NOVEMBER 2015
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL FOLLOW IF DEPRESSIONS EVENTUATE.
_____________________________________________________________

Space Weather Services              email: asfc at ips.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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