[Ips-dhfpr] IPS Daily HF Prop Report - 10 May 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 10/2330Z MAY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 MAY) 
Date   T index  Conditions    
10 May    63    Fair           

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      15% depressed to near predicted monthly values,
      Depressed by 25% after local dawn this morning.
   Antarctic Region (Casey/Scott Base):
      15% depressed. Spread F observed.


PCA Event : No event.

Predicted Monthly T index for May:  72
2. FORECAST (11 MAY - 13 MAY)
Date   T index  Conditions       MUFs                              
11 May    55    Fair-Normal      depressed 10 to 15% (Southern Aus/NZ)
11 May    70    Normal           near predicted monthly values (Northern Aus)
12 May    70    Fair-Normal      near predicted monthly values     
13 May    60    Fair-Normal      depressed 10 to 15%/near predicted 
                                 monthly values    
COMMENT: Geomagnetic activity continued longer than expected. 
Southern Aus/NZ region MUFs again depressed 15% yesterday, and 
depressed MUFs in southern region observed after local dawn this 
morning. Northern Aus region MUFs again appear unaffected. HF 
conditions may briefly improve later today, before returning 
degraded due to second arm of coronal hole high speed wind stream. 

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