[Ips-dhfpr] IPS Daily HF Prop Report - 24 November 00

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 24/2330Z NOVEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 NOVEMBER) 
Date   T index  Conditions    
24 Nov   139    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1/1N 23/2328UT  possible   lower  West Pacific
 X2/3B 24/0502UT  probable   all    Western Australian/Indian
 X2/2B    1513UT  probable   all    South American/
			            Atlantic
 X1/-  24/2159UT  probable   all    East Pacific

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.


Predicted Monthly T index for November: 133
2. FORECAST (25 NOVEMBER - 27 NOVEMBER)
Date   T index  Conditions       MUFs                              
25 Nov   140    Normal           near predicted monthly values 
26 Nov   100    Fair             about 30% below predicted monthly 
                                 values     
27 Nov   110    Fair             about 20% below predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 80 was issued on 24 November 
and is current for interval 26-28 November. Depressed ionospheric 
conditions by 20% to 30% are likely from the 26 Nov till 28 Nov 
after the anticipated arrival of several shocks associated with 
CMEs, two M1 observed on the 23 Nov at 1930 and 2328 UT and three 
X flares observed 24 Nov at around 1930, 0502, 1513 and 2143UT. 


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