[Ips-dhfpr] IPS Daily HF Prop Report - 18 November 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z NOVEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 NOVEMBER) 
Date   T index  Conditions    
18 Nov    60    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Initially depressed 10-15% 00-05UT.
      Enhanced by 25% during local night.
      Enhanced by 40% after local dawn.
   Southern Australian and New Zealand Region:
      Initially depressed 15% 00-05UT.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.


PCA Event : No event.

Predicted Monthly T index for November:  35
2. FORECAST (19 NOVEMBER - 21 NOVEMBER)
Date   T index  Conditions       MUFs                              
19 Nov    55    Normal           about 15% above predicted monthly 
                                 values 
20 Nov    55    Normal           about 15% above predicted monthly 
                                 values     
21 Nov    55    Normal           about 15% above predicted monthly 
                                 values    
COMMENT: MUFs in the Australian region were unexpectedly depressed 
10-20% for the first 5 hours of the UT day. MUFs then recovered 
to near to above predicted monthly values. HF Communications 
Warning 51 was issued in response to this depression. The HF 
conditions are expected to remain mostly near to 15% above normal 
in Aus/NZ region during the next three days. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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