[Ips-dhfpr] SWS Daily HF Prop Report - 26 September 21 issued 2331 UT on 26 Sep 2021

Regional Warning Centre rwc at ips.gov.au
Mon Sep 27 09:31:05 EST 2021


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 SEPTEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 SEPTEMBER) 
Date   T index  Conditions    
26 Sep    26    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values.
   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
Aug      14
Sep      27
Oct      30


2. FORECAST (27 SEPTEMBER - 29 SEPTEMBER)
Date   T index  Conditions       MUFs                              
27 Sep    20    Fair             Near predicted monthly values/depressed 
                                 10 to 20%
28 Sep    15    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
29 Sep    20    Normal           Near predicted monthly values   

COMMENT: MUFs in the Australian region on UT day 26 September 
were mostly near predicted monthly values, with some mild depressions 
in the Cocos Island region during the local night. Some mild 
MUF depressions are possible on UT days 27-28 September, due 
to the expected increase in geomagnetic activity. Mostly normal 
HF propagation conditions are expected on UT day 29 September.

----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
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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