[Ips-dhfpr] IPS Daily HF Prop Report - 19 March 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 19/2330Z MARCH 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 MARCH) 
Date   T index  Conditions    
19 Mar    78    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
 M3/1N    0953UT  possible   lower  Mid East/Indian

MUFs:
   Equatorial PNG Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for March:  82
2. FORECAST (20 MARCH - 22 MARCH)
Date   T index  Conditions       MUFs                              
20 Mar    75    Normal-Fair      depressed 10 to 20%/near predicted 
                                 monthly values 
21 Mar    85    Normal           near predicted monthly values     
22 Mar   100    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 22 was issued on 18 March 
and is current for interval 19-20 March. Genreally lower than 
normal MUFs expected for southern Aus and NZ region after local 
dawn over next few days. These conditions are expected due to 
coronal hole high speed wind stream induced geomagnetic activity, 
with the possibility of superimposed weak mass ejection signatures. 
Short wave fadeouts are possible due to enhanced proton flux. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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