[Ips-dhfpr] ASWFC Daily HF Prop Report - 24 August 22 issued 2330 UT on 24 Aug 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 AUGUST) 
Date   T index  Conditions    
24 Aug    42    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 20% 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 (25 AUGUST - 27 AUGUST)
Date   T index  Conditions       MUFs                              
25 Aug    45    Normal           Depressed 15%/near predicted 
                                 monthly values
26 Aug    50    Normal           Near predicted monthly values    
27 Aug    55    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 62 was issued on 23 August 
and is current for 24-25 Aug. Maximum usable frequencies (MUFs) 
on UT day 24-Aug were near predicted monthly values to 20% depressed. 
Spread-F was observed at Brisbane and Townsville during local 
night hours. Sporadic E was observed at the Cocos Islands. Regional 
MUFs are expected to be mostly near predicted monthly values 
to 15% depressed on 25-Aug and mostly near predicted monthly 
values over 26-27 Aug, as the effects from recent CMEs subside.

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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