[Ips-dhfpr] SWS Daily HF Prop Report - 09 September 21 issued 2331 UT on 09 Sep 2021

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 SEPTEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 SEPTEMBER) 
Date   T index  Conditions    
09 Sep    27    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      No data.
   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 over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      14
Sep      27
Oct      30


2. FORECAST (10 SEPTEMBER - 12 SEPTEMBER)
Date   T index  Conditions       MUFs                              
10 Sep    25    Normal           Near predicted monthly values
11 Sep    29    Normal           Near predicted monthly values    
12 Sep    30    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 22 was issued on 9 
September and is current for 9-11 Sep. MUFs in the Australian 
region on UT day 09 September were mostly near predicted monthly 
values. Periods of mildly depressed MUFs were observed over the 
Cocos Island region during the local night. MUFs in the Australian 
region on UT days 10 to 12 September are expected to be mostly 
near predicted monthly values. Shortwave fadeouts are possible 
for the next few days.

----------------------------------------------------------
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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