[Ips-whfpr] IPS Weekly Prop. Report (17 August 11)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT **CORRECTED VERSION**
ISSUED AT 17/0200Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (10 AUGUST - 16 AUGUST)
Date   T index   Conditions        
10 Aug   40      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Niue Island Region:
      Depressed by 15% during local day,
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

11 Aug   37      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

12 Aug   41      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to depressed by 
      20% over the UT day.

13 Aug   35      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressed by 15% during local day,
      Depressed by 40% during local night.
      Depressed by 35% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 40% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to depressed by 30% over the UT day.

14 Aug   34      Normal-fair       
MUFS:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 25% during local day,
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 25% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

15 Aug   43      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 35% during local night.
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to depressed by 20%.

16 Aug   42      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 20% 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):
      Near predicted monthly values to depressed by 30% at
      times.

Predicted Monthly T index for August:  59
2. FORECAST (17 AUGUST - 23 AUGUST) 
MUFS: Mild depressions 17 August, otherwise MUFs mostly
near predicted monthly values.
Propagation conditions: Fair-Normal. SWFs possible.
T index:  50

3. OUTLOOK (24 AUGUST - 23 SEPTEMBER)
Degraded HF propagation conditions possible: 30 Aug - 12 Sept.

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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.


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