[Ips-dhfpr] SWS Daily HF Prop Report - 16 October 21 issued 2331 UT on 16 Oct 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 OCTOBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 OCTOBER) 
Date   T index  Conditions    
16 Oct     9    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 20% 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 (17 OCTOBER - 19 OCTOBER)
Date   T index  Conditions       MUFs                              
17 Oct    15    Normal-fair      Near predicted monthly values
18 Oct    15    Normal-fair      Near predicted monthly values    
19 Oct     5    Fair-poor        Depressed 10 to 20%/near predicted 
                                 monthly values   

COMMENT: MUFs in the Australian region on UT day 16 October showed 
a slight recovery. MUFs were near predicted monthly values with 
slight depressions observed in the southern Australian region 
local night. MUFs are likely to be mostly near predicted monthly 
values on UT days 17-18 October. Mildly depressed MUFs are possible 
on 19 October in response 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
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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