[Ips-dhfpr] IPS Daily HF Prop Report - 10 November 00

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 10/2330Z NOVEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 NOVEMBER) 
Date   T index  Conditions    
10 Nov   127    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 15-30% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Severe absorption has been observed for UT day.


Predicted Monthly T index for November: 133
2. FORECAST (11 NOVEMBER - 13 NOVEMBER)
Date   T index  Conditions       MUFs                              
11 Nov   110    Normal-fair      Near predicted monthly values 
                                 for Northern Australian regions 
                                 with depressions of 15-30% for 
                                 Southern Australian regions. 
12 Nov   115    Normal-fair      Near predicted monthly values 
                                 for Northern Australian regions 
                                 with depressions of 10-20% for 
                                 Southern Australian regions.     
13 Nov   120    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 76 was issued on 8 November 
and is current for interval 10-13 November. Geomagnetic activity 
increased to major storm levels during local night, although 
the effects on HF conditions have been only mild, with southern 
Australian regions having depressions of 15-30%. Proton flux 
continues to remain above threshold levels following a recent 
M7-flare, producing high levels of absorption in the polar cap 
regions. The PCA event is still in progress and is expected to 
persist for 11 Nov. 


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