[Ips-dhfpr] IPS Daily HF Prop Report - 18 May 05

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z MAY 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 MAY) 
Date   T index  Conditions    
18 May    24    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with periods of significant degradations.

PCA Event : No event.

Predicted Monthly T index for May:  27
2. FORECAST (19 MAY - 21 MAY)
Date   T index  Conditions       MUFs                              
19 May    21    Normal           near predicted monthly values/depressed 
                                 5% in southern regions. 
20 May    24    Normal           depressed 5% in southern regions/ 
                                 near predicted montly values.     
21 May    30    Normal           near predicted monthly values 
                                 to enhanced 5 to 10%.    
COMMENT: IPS HF Communications Warning 22 was issued on
17 May and is current for interval 19 May only. HF conditions 
are expected to remain mostly normal in the northern Aus/NZ 
regions during the next three days. However, minor depressions 
and degradations are possible at times in the Southern Aus/NZ 
regions on 19 and 20 May. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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