[Ips-whfpr] IPS Weekly Prop. Report (09 May 01)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 09/0200Z MAY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (02 MAY - 08 MAY)
Date   T index   Conditions        
02 May  136      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 30% over the UT day.
      Spread F observed.


03 May  136      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% 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 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.
      Spread F observed.


04 May  141      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 20% during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.


05 May  135      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 15% during local day,
     Enhanced by 15% during local night.
     Enhanced by 20% after local dawn.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Near predicted monthly values during local night.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 20% over the UT day.


06 May  137      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.
      Some spread F observed.


07 May  127      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Spread F observed.


08 May  136      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Near predicted monthly values during local night.
   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.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Absorption and spread F observed.


Predicted Monthly T index for May: 117
2. FORECAST (09 MAY - 15 MAY) 
MUFS: mildy depressed after local dawn on 09-May, depressed 15% on 13-May, 
mildy depressed after local dawn on 16-May,  otherwise MUFs near normal. 
Propagation conditions: Fair 09-10,13,16-May, otherwise normal. 
T index:  110
COMMENT: IPS HF Communications Warning 30 was issued on 8 May and 
is current for interval  9-10 May. 
3. OUTLOOK (16 MAY - 15 JUNE)
Mild Degraded HF propagation conditions possible:
24-May to 25-May, 04-Jun to 06-Jun,08-Jun to 09-Jun.

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