[Ips-hf-warning] SWS HF COMMS WARNING issued 0326 UT on 03 Dec 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 18/20
ISSUED AT 0326UT/03 DECEMBER 2018
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

MUF depressions of 10% to 40% may be observed on UT days 3-4 
December 2018 due to the continued very low levels of ionising 
radiation from the Sun and recent rise in geomagnetic activity.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 03-04 DECEMBER 2018
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
03 Dec:  -35          -40%      2  4  4  4  8  8 12 12
04 Dec:  -30          -30%      2  4  6  6  8 12 16 16

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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