[Ips-dhfpr] IPS Daily HF Prop Report - 20 September 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z SEPTEMBER 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 SEPTEMBER) 
Date   T index  Conditions    
20 Sep    81    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values 00-11 and 23 UT. No data
      12-22 UT.
   Niue Island Region:
      Near predicted monthly values with occasional enhancements
      to 30%.
   Northern Australian Region:
      Near predicted monthly values to 25% enhanced. Depressions
      to 40% at Darwin 17-18 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with enhancements to 30% mostly
      Hobart, Perth and Learmonth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 40% enhanced.

PCA Event : No event.

Predicted Monthly T index for September:  62

2. FORECAST (21 SEPTEMBER - 23 SEPTEMBER)
Date   T index  Conditions       MUFs                              
21 Sep    70    Normal           Near predicted monthly values 
22 Sep    70    Normal           Near predicted monthly values     
23 Sep    70    Normal           Near predicted monthly values    

COMMENT: IPS HF Communications Warning 41 was issued on 20 September 
and is current for interval 21 September only (SWFs) . With solar 
activity increasing, there is the chance of sudden disruptions 
to communications (short wave fade-outs). 

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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

IPS Radio and Space Services        email: asfc at ips.gov.au
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