[Ips-dhfpr] IPS Daily HF Prop Report - 20 July 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z JULY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 JULY) 
Date   T index  Conditions    
20 Jul    70    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M8/3B    1232UT  probable   lower  European

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 55% during local night.
      Enhanced by 40% after local dawn.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 30% with periods of strong degradations.

PCA Event : No event.

Predicted Monthly T index for July:  39
2. FORECAST (21 JULY - 23 JULY)
Date   T index  Conditions       MUFs                              
21 Jul    68    Normal           near predicted monthly values/enhanced 
                                 5 to 10%. 
22 Jul    68    Normal           near predicted monthly values/enhanced 
                                 5 to 20%.     
23 Jul    62    Normal-Fair      near predicted monthly values/depressed 
                                 5%.    
COMMENT: IPS HF Communications Warning 30 was issued on 
19 July and is current for interval 20-22 July (SWFs) . 
HF conditions are expected to remain mostly normal in 
Aus/NZ regions during the next two days with some possibility 
of isolated minor degradation periods in the southern regions 
on the first and second days of this period. Minor to moderate 
degradations are possible on the third day, especially in the 
Southern Aus/NZ region. 
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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.

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