[Ips-dhfpr] IPS Daily HF Prop Report - 25 October 00

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 25/2330Z OCTOBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 OCTOBER) 
Date   T index  Conditions    
25 Oct   131    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 20 to 30% overnight,
      Mostly near predicted monthly values during the day,
   Northern Australian Region:
      Slightly enhanced overnight,
      Mostly near predicted monthly values during the day,
   Southern Australian and New Zealand Region:
      Depressed by 10 to 20% during the day,
      Mostly near predicted monthly values overnight,
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


Predicted Monthly T index for October: 135
2. FORECAST (26 OCTOBER - 28 OCTOBER)
Date   T index  Conditions       MUFs                              
26 Oct   140    Normal           near predicted monthly values 
27 Oct   140    Normal           Near predicted monthly values     
28 Oct   120    Fair-normal      10 to 20% below predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 72 was issued on 25 October 
and is current for interval 28-30 October. Mildly degraded HF 
conditions observed during local day hours for southern region 
Aus/NZ. Enhanced HF conditions observed at Darwin and Vanimo 
during local night hours. Futher degradation are expected for 
the 28 Oct following the anticipated arrival of CME associated 
with C-class flare observed on the 25 Oct at 1125 UT. 


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