[Ips-dhfpr] IPS Daily HF Prop Report - 18 August 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z AUGUST 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 AUGUST) 
Date   T index  Conditions    
18 Aug    18    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 20% 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 30% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for August:  12
2. FORECAST (19 AUGUST - 21 AUGUST)
Date   T index  Conditions       MUFs                              
19 Aug     6    Fair             near predicted monthly values/depressed 
                                 10 to 20% 
20 Aug    10    Normal           Near predicted monthly values/ 
                                 depressed 5%     
21 Aug    13    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 10 was issued on 18 August 
and is current for interval 18-20 August. Degraded HF conditions 
are expected in the Aus/NZ regions on 19 August, especially 
in the southern parts, due an anticipated rise in geomagnetic 
activity on this day. Some isolated degradaded periods are also 
possible on 20 August. 
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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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