[Ips-dhfpr] IPS Daily HF Prop Report - 11 September 15 issued 2330 UT on 11 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 SEPTEMBER) 
Date   T index  Conditions    
11 Sep     4    Fair-poor      

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 40% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 35% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 40% during local day.
      Depressed by 40% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 40% during local day.
      Depressed by 45% during local night.
      Depressed by 40% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

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


2. FORECAST (12 SEPTEMBER - 14 SEPTEMBER)
Date   T index  Conditions       MUFs                              
12 Sep     0    Fair-poor        20 to 50% below predicted monthly 
                                 values
13 Sep     5    Poor-fair        20 to 40% below predicted monthly 
                                 values    
14 Sep    10    Fair             10 to 20% below predicted monthly 
                                 values   

COMMENT: IPS HF Communications Warning 51 was issued on 11 September 
and is current for 11-13 Sep. Mild to significant MUF depressions 
and degradations in HF conditions observed over the last 24 hours 
in AUS/NZ regions due to very low levels of ionising radiation 
and increased geomagnetic activity. Nearly similar HF conditions 
expected from 12 to 13 September due to expected enhancements 
in geomagnetic activity levels during this period. Slight improvements 
in HF conditions may be possible on 14 September.

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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 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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