[Ips-whfpr] IPS Weekly Prop. Report (12 May 04)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 12/0200Z MAY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (05 MAY - 11 MAY)
Date   T index   Conditions        
05 May   45      Normal            
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
      with isolated daytime depressions.
   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):
      Mostly near predicted monthly values with extended
      periods of localised degradations. 


06 May   46      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed 10-20% at times during local day,
      otherwise mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Depressed 10-20% at times to near predicted
      monthly values.


07 May   46      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Enhanced 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.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values first
      half of UT day. Absorption and spread F
      observed second half of UT day.


08 May   42      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values first half UT day.
      Absorption and spread F observed after 10 UT.


09 May   39      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 35% during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed up to 15% at times, otherwise mostly
      near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Depressed up to 15% at times, otherwise mostly
      near predicted monthly values.


10 May   34      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with periods of depressions and degradations.


11 May   44      Normal            
MUFS:
near predicted monthly values


Predicted Monthly T index for May:  43
2. FORECAST (12 MAY - 18 MAY) 
MUFS: Near predicted monthly values. No SWFs.

Propagation conditions: Slightly degraded HF conditons
possible for 13-May, otherwise normal. No SWFs.

T index:   55

3. OUTLOOK (19 MAY - 18 JUNE)
Degraded HF propagation conditions possible:
20-May,25-May,27-May to 28-May,01-Jun to 03-Jun ,09-Jun,16-Jun.

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.

For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary 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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