[Ips-dhfpr] IPS Daily HF Prop Report - 24 June 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 24/2330Z JUNE 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 JUNE) 
Date   T index  Conditions    
24 Jun    92    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 75% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for June:  68
2. FORECAST (25 JUNE - 27 JUNE)
Date   T index  Conditions       MUFs                              
25 Jun    80    Normal-Fair      about 15% above predicted monthly 
                                 values 
26 Jun    75    Normal           near predicted monthly values     
27 Jun    60    Normal-Fair      near predicted monthly values/depressed 
                                 10 to 15%    
COMMENT: MUFs became unexpectedly enhanced yesterday in the Australian 
region. This enhanced conditions may continue today. Spread F 
was observed on local night southern Aus region iongrams, indicating 
degraded conditions were likely local night hours. Note that 
a degraded interval is expected after 28 Jun due to a coronal 
hole wind stream. Also, shortwave fadeout activity may increase 
on/after 27 Jun if a previously flare productive region returns 
to the solar disk. 

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