[Ips-dhfpr] IPS Daily HF Prop Report - 18 September 15 issued 2355 UT on 18 Sep 2015

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 SEPTEMBER) 
Date   T index  Conditions    
18 Sep    41    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Depressed by 40% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to depressed 20%.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      46
Sep      75
Oct      73


2. FORECAST (19 SEPTEMBER - 21 SEPTEMBER)
Date   T index  Conditions       MUFs                              
19 Sep    40    Normal-fair      15 to 20% below predicted monthly 
                                 values
20 Sep    40    Normal-fair      15 to 20% below predicted monthly 
                                 values    
21 Sep    40    Normal-fair      15 to 20% below predicted monthly 
                                 values   

COMMENT: IPS SWF HF Communications Warning 53 was issued on 18 
September and is current for 18-19 Sep. IPS HF Communications 
Warning 54 was issued on 18 September and is current for 18-19 
Sep. Mildly degraded HF conditions were observed during 18 September 
over the Australian region due to low levels of ionising radiation 
and sustained mildly elevated geomagnetic activity levels. Similar 
HF conditions are expected for the next few days.

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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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