[Ips-dhfpr] SWS Daily HF Prop Report - 08 July 22 issued 2330 UT on 08 Jul 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 JULY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (08 JULY) 
Date   T index  Conditions    
08 Jul    69    Fair-poor      

Flares    Max     Fadeout    Freq.  Sectors
  M2.6    2050UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 45% over the UT day.

PCA Event : No event.

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


2. FORECAST (09 JULY - 11 JULY)
Date   T index  Conditions       MUFs                              
09 Jul    70    Normal           Near predicted monthly values
10 Jul    70    Normal           Near predicted monthly values    
11 Jul    70    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 53 was issued on 8 
July and is current for 9-11 Jul. Maximum usable frequencies 
(MUFs) on UT day 08-Jul were generally near predicted monthly 
values, with depressions of 30-45% observed in southern Australian 
regions. Spread-F was observed at most sites during local night 
hours, indicating degraded HF conditions. MUFs are expected to 
be near predicted monthly values over 09-11 Jul, with degraded 
conditions possible for the southern Australian region during 
local night hours. 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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