[Ips-dhfpr] IPS Daily HF Prop Report - 25 August 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 25/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 AUGUST) 
Date   T index  Conditions    
25 Aug    55    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 35% over the UT day.

PCA Event : No event.

Predicted Monthly T index for August:  59
2. FORECAST (26 AUGUST - 28 AUGUST)
Date   T index  Conditions       MUFs                              
26 Aug    55    Normal           Near predicted monthly values 
27 Aug    50    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%     
28 Aug    45    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%    
COMMENT: Depressed MUFs of 10%-30% observed over Equatorial regions 
during local day and night. Northern Australian regions also 
experienced depressed MUFs during local day. Near predicted monthly 
values for Southern AUS/NZ regions and disturbed conditions for 
Antarctic regions. Mild MUF depressions are expected at times 
over the next 24 hours for Northern Australian to Equatorial 
regions and near predicted monthly values expected for Southern 
AUS/NZ regions. Increased geomagnetic activity expected on 27Aug-28Aug, 
resulting in reduced ionospheric support for high to mid latitudes. 
 
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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.

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