[Ips-dhfpr] SWS Daily HF Prop Report - 23 August 21 issued 2330 UT on 23 Aug 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 AUGUST 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 AUGUST) 
Date   T index  Conditions    
23 Aug    13    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      17
Aug      25
Sep      28


2. FORECAST (24 AUGUST - 26 AUGUST)
Date   T index  Conditions       MUFs                              
24 Aug    12    Normal           Near predicted monthly values
25 Aug     8    Normal           Near predicted monthly values    
26 Aug     6    Normal           Near predicted monthly values   

COMMENT: MUFs in the Australian region on UT day 23 August were 
near predicted monthly values, with some mild MUF depressions 
in the Northern Australian region and mild enhancements in the 
Antarctic regions. MUFs in the Australian region on UT day 24 
August are expected to be mostly near predicted monthly values. 
Some mild MUF depressions may occur on UT days 25 and 26 August 
due to the expected increase in geomagnetic activity.

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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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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