[Ips-dhfpr] IPS Daily HF Prop Report - 18 October 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z OCTOBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 OCTOBER) 
Date   T index  Conditions    
18 Oct    65    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 25% during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Depressed by 15% over the UT day.


PCA Event : No event.

Predicted Monthly T index for October:  55
2. FORECAST (19 OCTOBER - 21 OCTOBER)
Date   T index  Conditions       MUFs                              
19 Oct    45    Fair-Normal      depressed 10 to 15%/near predicted 
                                 monthly values 
20 Oct    65    Normal           near predicted monthly values     
21 Oct    45    Normal-Fair      near predicted monthly values/depressed 
                                 10 to 20%    
COMMENT: Generally normal HF conditions expected next two days. 
Lower than normal MUFs are likely for southern Aus/NZ region 
after 21 Oct, due to anticpated start of geomagnetic activity 
from a solar coronal hole wind stream. Some southern Aus/NZ sites 
may experience brief MUF depression after local dawn this morning. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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