[Ips-dhfpr] ASWFC Daily HF Prop Report - 23 August 22 issued 2330 UT on 23 Aug 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 AUGUST) 
Date   T index  Conditions    
23 Aug    41    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Depressed by 40% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   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 (24 AUGUST - 26 AUGUST)
Date   T index  Conditions       MUFs                              
24 Aug    40    Fair-normal      Depressed 15%/near predicted 
                                 monthly values
25 Aug    45    Fair-normal      Depressed 15%/near predicted 
                                 monthly values    
26 Aug    50    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 23-Aug were mostly 15% to 25% depressed. Spread-F was 
observed during local night in the Australian region. Regional 
MUFs are expected to be mostly near predicted monthly values 
to 15% depressed over 24-25 Aug and mostly near predicted monthly 
values on 26-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