[Ips-dhfpr] SWS Daily HF Prop Report - 22 August 21 issued 2330 UT on 22 Aug 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 AUGUST 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 AUGUST) 
Date   T index  Conditions    
22 Aug    15    Normal         

Flares: none.

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

PCA Event : No event.

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


2. FORECAST (23 AUGUST - 25 AUGUST)
Date   T index  Conditions       MUFs                              
23 Aug    20    Normal           Near predicted monthly values
24 Aug    15    Normal           Near predicted monthly values    
25 Aug    10    Normal           Near predicted monthly values   

COMMENT: MUFs in the Australian region on UT day 22 August were 
near predicted monthly values, with some mild MUF depressions 
in the Northern Australian region during the local day and in 
the Cocos Island region during the local night. MUFs in the Australian 
region on UT days 23-25 August are expected to be mostly near 
predicted monthly values. Some mild MUF depressions may occur 
on UT days 24-25 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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