[Ips-hf-warning] SWS HF COMMS WARNING issued 2352 UT on 03 Mar 2021

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 21/09
ISSUED AT 2351UT/03 MARCH 2021
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A large equatorial coronal hole is expected to reach geoeffective 
position late on UT day 4 March or on UT day 5 March. There is 
also the waning effect of a Southern Polar coronal hole. MUFs 
in the Australian region are expected to be moderately depressed 
to near predicted monthly values on UT days 4 March and 6 March. 
This is in response to the recent and forecast geomagnetic activity.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 04-06 MARCH 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
_____________________________________________________________
04 Mar:   -5          -12%      2  4  6  8 12 16 16 22
05 Mar:    5   normal/-15%      2  4  6  8 12 12 16 22
06 Mar:   -5          -12%      2  4  6  8 12 16 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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