[Ips-dhfpr] IPS Daily HF Prop Report - 16 July 12 issued 2349 UT on 16 Jul 2012

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 JULY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 JULY) 
Date   T index  Conditions    
16 Jul    23    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 50% during local day.
      Depressed by 45% during local night.     
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionospheric support over the UT day.

PCA Event : No event.

Predicted Monthly T index for July:  77


2. FORECAST (17 JULY - 19 JULY)
Date   T index  Conditions       MUFs                              
17 Jul    40    Fair             20 to 40% below predicted monthly 
                                 values
18 Jul    50    Normal-fair      Near predicted monthly values/depressed 
                                 10-20%.    
19 Jul    50    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: IPS HF Communications Warning 28 was issued on 16 July 
and is current for 17 Jul only. MUF depressions were observed 
over most of the Australian region during the last 24 hours. 
Sporadic-E and Spread F conditions were observed at times during 
16 July which may have degraded HF conditions. Continuing poor 
ionospheric support Antarctic region. Possible ongoing disturbance 
day one with a small chance of minor SWFs. Sporadic-E and Spread 
F conditions are possible at times over the next few days.

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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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