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

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z MAY 2003 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    63    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15-20% during local night/dawn.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced 10-30% above predicted monthly values 
      with widespread spread-F conditions observed.


PCA Event : No event.

Predicted Monthly T index for May:  72
2. FORECAST (19 MAY - 21 MAY)
Date   T index  Conditions       MUFs                              
19 May    60    Normal-Fair      Near predicted monthly values 
20 May    70    Normal           Near predicted monthly values     
21 May    80    Normal           Near predicted monthly values    
COMMENT: Possible mild depressions during local night hours and 
after local dawn at mid latitudes. Expect local disturbances 
today S Aus/Antarctic regions in association with increased geomagnetic 
activity. These effects are due to a small favourably positioned 
coronal hole and should not persist for more than 1-2 days. 

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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