[Ips-dhfpr] ASWFC Daily HF Prop Report - 20 August 22 issued 2331 UT on 20 Aug 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 AUGUST) 
Date   T index  Conditions    
20 Aug    59    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      65
Aug      67
Sep      68


2. FORECAST (21 AUGUST - 23 AUGUST)
Date   T index  Conditions       MUFs                              
21 Aug    55    Normal-fair      Near predicted monthly values 
                                 to 20% depressed
22 Aug    50    Normal-fair      Near predicted monthly values    
23 Aug    55    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 12-Aug were 
mostly near predicted monthly values to 25% depressed. Spread-F 
and sporadic-E were observed during local night in the Australian 
region. Regional MUFs are expected to be mostly near predicted 
monthly values with continued degradation during local night 
hours.

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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