[Ips-dhfpr] SWS Daily HF Prop Report - 22 October 21 issued 2331 UT on 22 Oct 2021

[Regional Warning Centre]

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

1. SUMMARY (22 OCTOBER) 
Date   T index  Conditions    
22 Oct     8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values 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
Sep      24
Oct      29
Nov      33


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

COMMENT: MUFs in the Australian region on UT day 22 October were 
mostly near predicted monthly values to 20% depressed. Some depressions 
to 40% observed at Niue and Cocos Is. in the pre-dawn hours. 
MUFs are likely to be near predicted monthly values to mildly 
depressed on UT days 23-25 October.

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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
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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