[Ips-dhfpr] SWS Daily HF Prop Report - 12 July 22 issued 2330 UT on 12 Jul 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 JULY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 JULY) 
Date   T index  Conditions    
12 Jul    84    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      60
Jul      65
Aug      67


2. FORECAST (13 JULY - 15 JULY)
Date   T index  Conditions       MUFs                              
13 Jul    75    Normal-fair      Near predicted monthly values
14 Jul    70    Normal           Near predicted monthly values    
15 Jul    65    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 54 was issued on 11 
July and is current for 12-14 Jul. Maximum usable frequencies 
(MUFs) on UT day 12-Jul were generally unexpectedly enhanced 
by 15% in most sites. Spread-F was observed in most southern 
Australian sites during local day. MUFs are expected to be near 
predicted monthly values over 13-15 Jul, with mildly degraded 
conditions possible for the southern Australia region. Shortwave 
fadeouts are possible.

----------------------------------------------------------
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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