[Ips-whfpr] IPS Weekly Prop. Report (02 May 12) issued 0008 UT on 02 May 2012

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 02 MAY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 APRIL - 01 MAY)
Date   T index   Conditions        
25 Apr  102      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

26 Apr   97      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

27 Apr   84      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced 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):
      Near predicted monthly values over the UT day.

28 Apr   77      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values 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 over the UT day.

29 Apr   75      Normal-fair       
MUFS:
   Cocos Island Region:
      No data 03-20 UT. Near predicted monthly values
      at other times.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% 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 over the UT day.

30 Apr   65      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values with enhancements to
      40% 05-15 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to
      30% 07-17 and 20-21 UT.
   Northern Australian Region:
      Mostly near predicted monthly values with occasional
      depressions to 25% 09-20 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with occasional
      depressions to 25% 08-20 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 30%
      after 12 UT.

01 May   63      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values with depressions to 25%
      13-20 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      14-17 and 21-22 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 25%
      02-08 UT and to 35% 12-17 UT at Darwin, depressions to
      20% 02-05 and 09-16 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with occasional
      depressions to 20% at some stations 00-17 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 30%
      at times.

Predicted Monthly T index for May:  79

2. FORECAST (02 MAY - 08 MAY) 
MUFS: Near predicted monthly values to 25% depressed.

Propagation conditions: Fair to normal. No SWFs.

T index: 65

3. OUTLOOK (09 MAY - 08 JUNE)
Degraded HF propagation conditions possible:
9-10 May,  21-23 May,  5-6 Jun

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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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