[Ips-whfpr] IPS Weekly Prop. Report (13 April 11)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z APRIL 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 APRIL - 12 APRIL)
Date   T index   Conditions        
06 Apr  103      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 40% during local day,
      Enhanced by 75% during local night.
   Niue Island Region:
      Enhanced by 30% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Variable conditions during local night.
      Enhanced by 50% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 35% during local day,
      Enhanced by 30% to depressed up to 25% for southern
      most regions during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to depressed at times
      over the UT day.

07 Apr   84      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 30% during local day,
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 35% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 35% during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to Depressed by 15% over the UT day.

08 Apr   73      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 65% during local day,
      Enhanced by 60% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day, otherwise
      mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

09 Apr   78      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 35% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 25% during local night.
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 30% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

10 Apr   62      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 35% during local day,
      Enhanced by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Apr   61      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 20% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

12 Apr   69      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day,
      Depressed by 25% during local night.
   Niue Island Region:
      Enhanced by 15% during local day,
      Enhanced by 75% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for April:  44
2. FORECAST (13 APRIL - 19 APRIL) 
MUFS: MUFs near predicted monthly values with the possibility of 
minor to moderate enhancements.
Propagation conditions: Normal. No SWFs
T index:  70

3. OUTLOOK (20 APRIL - 20 MAY)
Degraded HF propagation conditions possible:
03-May.

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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