[Ips-whfpr] IPS Weekly Prop. Report (29 November 00)

[Regional Warning Centre]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 29/0200Z NOVEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (22 NOVEMBER - 28 NOVEMBER)
Date   T index   Conditions        
22 Nov  136      Normal            
MUFS:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


23 Nov  138      Normal            
MUFS:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


24 Nov  139      Normal            
MUFS:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day,
      PCA in propgress after 1520 UT.


25 Nov  133      Normal            
MUFS:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


26 Nov  148      Normal            
MUFS:
   Equatorial PNG and Northern Australian Regions:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% at the start of the UT day.
      Mask by PCA afterwards.


27 Nov   86      Fair              
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      No data available over the UT day.


28 Nov  137      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
      Enhanced by 15% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      PCA in progress.


Predicted Monthly T index for November: 133
2. FORECAST (29 NOVEMBER - 05 DECEMBER) 
MUFS: Chances of depressions for the first two days, near predicted monthly
      values afterwards.
Propagation conditions: Fair to normal for 29-30 Nov, normal afterwards.
T index:  133
COMMENT: IPS HF Communications Warning 81 was issued on 27 November and
	 is current for interval  28-30 November. 
3. OUTLOOK (06 DECEMBER - 05 JANUARY)
Degraded HF propagation conditions possible:
06-11 Dec: recurrent coronal hole.
22-26 Dec: recurrent active longitude.

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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