[Ips-dhfpr] SWS Daily HF Prop Report - 05 August 22 issued 2331 UT on 05 Aug 2022 [SEC=OFFICIAL]

rwc rwc at ips.gov.au
Sat Aug 6 09:31:38 EST 2022


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/05 AUGUST 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 AUGUST) 
Date   T index  Conditions    
05 Aug    47    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 15% during local day.
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   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
Jul      65
Aug      67
Sep      68


2. FORECAST (06 AUGUST - 08 AUGUST)
Date   T index  Conditions       MUFs                              
06 Aug    45    Normal           Depressed 15-20%/near predicted 
                                 monthly values
07 Aug    50    Normal           Depressed 15-20%/near predicted 
                                 monthly values    
08 Aug    55    Normal-fair      Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 05-Aug were 
mostly near predicted monthly values to 35% depressed at most 
northern Australian sites during local night. Spread-F was observed 
in Brisbane and Learmonth and degraded conditions were observed 
at Darwin and Townsville. The source of these depressions in 
the northern Australian regions is unknown. MUFs are expected 
to be near predicted monthly values in the southern Australian 
region, with depressions of 15-20% in the northern Australian 
region at local night possible over 06-08 Aug.

----------------------------------------------------------
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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au



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