[Ips-dhfpr] SWS Daily HF Prop Report - 28 April 22 issued 2330 UT on 28 Apr 2022 [SEC=OFFICIAL]

Regional Warning Centre rwc at ips.gov.au
Fri Apr 29 09:30:54 EST 2022


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 APRIL 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 APRIL) 
Date   T index  Conditions    
28 Apr    94    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 25% during local night.
      Enhanced by 45% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
      Enhanced by 45% after local dawn.
   Southern Australian Region:
      Enhanced by 30% during local day.
      Enhanced by 25% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      64
Apr      46
May      49


2. FORECAST (29 APRIL - 01 MAY)
Date   T index  Conditions       MUFs                              
29 Apr    95    Normal-fair      Near to 25% above predicted 
                                 monthly values
30 Apr    80    Fair-normal      Near to 15% above predicted 
                                 monthly values    
01 May    80    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 28 Apr were 
mostly above monthly predicted values. MUFs are expected to be 
15-30% above monthly predicted values on 29 Apr to 1 May due 
to high levels of solar ionising flux. Mild MUF depressions are 
expected on 30 Apr to 1 May due to anticipated disturbed conditions, 
but will still be above monthly predicted values. Short-wave 
fadeouts are possible for the next 24 hours.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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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