[Ips-dhfpr] IPS Daily HF Prop Report - 13 May 03

rwc rwc at ips.gov.au
Wed May 14 09:18:52 EST 2003


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z MAY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 MAY) 
Date   T index  Conditions    
13 May    53    Fair-normal    

Flares: none.

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


PCA Event : No event.

Predicted Monthly T index for May:  72
2. FORECAST (14 MAY - 16 MAY)
Date   T index  Conditions       MUFs                              
14 May    55    Fair             depressed 10 to 15%(south Aus/NZ)
14 May    70    Normal-Fair      near predicted (north Aus)
15 May    70    Normal-Fair      Near predicted monthly values     
16 May    70    Normal-Fair      Near predicted monthly values    
COMMENT: IPS HF Communications Warning 37 was issued on 11 May 
and is current for interval 12-14 May. Lower than normal MUFs 
again expected for southern Aus/NZ region. Northern Aus region 
MUFs again expected to be near normal. In general southern region 
MUFs are expected to improve after today. However, an extended 
period of lower than normal MUFs after local dawn and degraded 
local night conditions may be experienced by southern Aus/NZ 
HF communicators. Chance for shortwave fadeouts. 

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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