[Ips-whfpr] IPS Weekly Prop. Report (04 June 08)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 04/0200Z JUNE 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (28 MAY - 03 JUNE)
Date   T index   Conditions        
28 May    6      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

29 May    5      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly 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):
      Mostly near predicted monthly values.

30 May    5      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

31 May    4      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   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):
      Mostly near predicted monthly values.

01 Jun    2      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

02 Jun    0      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Occasional depressions to
      20%. Depressions to 60% observed at Vanimo 10-13 UT.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

03 Jun   -5      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Depressions to 45% at Vanimo
      01-14 UT and depressions to 30% at Niue 02-05 UT. Night
      spread F observed at Niue.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 30% at Darwin
      00-05 UT. Night spread F observed at all stations.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Enhancements to 45% at
      Christchurch 10-18 UT and Learmonth 11-20 UT. Night
      spread F observed at most stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

Predicted Monthly T index for June:   5
2. FORECAST (04 JUNE - 10 JUNE) 
MUFS: Near predicted monthly values. Occasional depressions to 30%
      possible. Depressions to 30% likely on 9 and 10 June.
Propagation conditions: Normal to fair. Night time communications
      may be degraded by spread F. No SWFs expected.
T index:    5

3. OUTLOOK (11 JUNE - 11 JULY)
Degraded HF propagation conditions possible: 30 June and 7 July.

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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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