[Ips-hf-warning] SWS HF SWF COMMS WARNING issued 2348 UT on 22 May 2021

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 21/16
ISSUED AT 2346UT/22 MAY 2021
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Region 2824 has already produced two M-class flares and several 
C-class flares on UT day 22 May. AR2824 is currently located 
at N17E14 near the Central Meridian. Solar activity is expected 
to be mostly low to moderate for the next three UT days, 23 May 
to 25 May, with a high chance of more C-class flares and a small 
chance of weak M-class flares. X-class flares are highly unlikely. 
Short wave fadeout is possible for the next three UT days (23-25 
May). Higher frequencies will be less impacted.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 23-25 MAY 2021
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
23 May:  Low to moderate      Possible
24 May:  Low to moderate      Possible
25 May:  Low to moderate      Possible

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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