[Ips-whfpr] IPS Weekly Prop. Report (28 May 03)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 28/0200Z MAY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 MAY - 27 MAY)
Date   T index   Conditions        
21 May   80      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 60% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.


22 May  101      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      otherwise enhanced greater than 30%.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.


23 May   84      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced greater than 25%.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.


24 May   75      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values to depressed 10-20%.


25 May   72      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 30% during local night.
   Australian and New Zealand Region:
      Near predicted monthly values to
      depressed 15-30% at times.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.


26 May   82      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 45% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values
      to depressed 10-20% at times.


27 May   78      Normal            
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.


Predicted Monthly T index for May:  72
2. FORECAST (28 MAY - 03 JUNE) 
MUFS: Mostly near predicted monthly values with mild to significant
      depressions (15-30%) at times in the first half of the
      forecast period. SWfs probable early in week.
Propagation conditions: Mostly normal to fair with poor conditions
      possible at times in the first half of the forecast period.
      SWfs probable early in week.
T index:   70 (28-31 May)/85 (1-3 June)
COMMENT: IPS HF Communications Warning 39 was issued on 28 May and
         is current for interval  28-30 May. 
3. OUTLOOK (04 JUNE - 04 JULY)
Degraded HF propagation conditions possible: 4-12 June.

PLEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

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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