[Ips-dhfpr] IPS Daily HF Prop Report - 18 July 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z JULY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 JULY) 
Date   T index  Conditions    
18 Jul    71    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M2/1F 17/2131UT  possible   lower  East Pacific/
                                    North American
 M1/-- 17/2308UT  possible   lower  West Pacific
 M2/1F    0035UT  possible   lower  West Pacific
 M1/SF    0257UT  possible   lower  E. Asia/Aust.
 M1/1F    1713UT  possible   lower  South American/

MUFs:
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      Enhanced by 40% during local night.
      Enhanced by 40% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Enhanced by 15% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by upto 50% with periods of significant 
      degradations.

PCA Event : No event.

Predicted Monthly T index for July:  39
2. FORECAST (19 JULY - 21 JULY)
Date   T index  Conditions       MUFs                              
19 Jul    68    Normal           near predicted monthly values/enhanced 
                                 10 to 25%. 
20 Jul    65    Normal           near predicted monthly values/enhanced 
                                 5 to 10%.     
21 Jul    65    Normal           near predicted monthly values/enhanced 
                                 5 to 10%.    
COMMENT: IPS HF Communications Warning 28 was issued on 16 
July and is current for interval 17-19 July (SWFs) . HF 
conditions are expected to remain mostly normal in Aus/NZ 
regions during the next three days with some possibility of 
isolated minor degradation periods in the southern regions 
on the second and third days. 
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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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