[Ips-hf-warning] SWS HF COMMS WARNING issued 2348 UT on 12 Dec 2021

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 21/39
ISSUED AT 2348UT/12 DECEMBER 2021
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Previous warning has been extended for further 3 more days. Lower 
than normal MUFs expected in the Australian region over the next 
three days due to very low levels of solar ionising flux.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 13-15 DECEMBER 2021
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
_____________________________________________________________
13 Dec:   10   normal/-15%      2  4  6  8 12 12 16 22
14 Dec:   10   normal/-15%      2  4  6  8 12 12 16 22
15 Dec:   10   normal/-15%      2  4  6  8 12 12 16 22

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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