[Ips-dhfpr] IPS Daily HF Prop Report - 18 October 07

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z OCTOBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 OCTOBER) 
Date   T index  Conditions    
18 Oct    -3    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for October:  10
2. FORECAST (19 OCTOBER - 21 OCTOBER)
Date   T index  Conditions       MUFs                              
19 Oct    -5    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values 
20 Oct     0    Normal           depressed 5 to 15%/near predicted 
                                 monthly values     
21 Oct     0    Normal           depressed 5 to 15%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 18 was issued on 18 October 
and is current for interval 19 October only. Significant depressions 
were observed at times during the past 24 hours primarily for 
Australian/Equatorial regions. Significant depressions are again 
expected at times for Australian/Equatorial regions, otherwise 
mostly normal conditions are expected for the next few days. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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