[Ips-dhfpr] IPS Daily HF Prop Report - 28 October 00

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z OCTOBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 OCTOBER) 
Date   T index  Conditions    
28 Oct   148    Normal         

Flares    Max     Fadeout    Begin   End    Freq.  Sectors
 M1/--    1849UT  possible                  lower  East Pacific/
                                                   North American

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


Predicted Monthly T index for October: 135
2. FORECAST (29 OCTOBER - 31 OCTOBER)
Date   T index  Conditions       MUFs                              
29 Oct   130    Normal-Fair      5 to 10% below predicted monthly 
                                 values 
30 Oct   140    Normal           Near predicted monthly values     
31 Oct   145    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 72 was issued on 25 October 
and is current for interval 28-30 October. Depressed conditions 
did not eventuate on 28 OCT after the arrival of two weak shocks 
detected at 0541 and 0907UT in ACE satellite data. As IMF Bz 
turned strongly negative after 2100 UT on 28 OCT, ionospheric 
conditions are expected to become depressed over the 29 OCT. 


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