[Ips-dhfpr] IPS Daily HF Prop Report - 06 September 15 issued 2330 UT on 06 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 SEPTEMBER) 
Date   T index  Conditions    
06 Sep    42    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

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


2. FORECAST (07 SEPTEMBER - 09 SEPTEMBER)
Date   T index  Conditions       MUFs                              
07 Sep    40    Normal-fair      15 to 20% below predicted monthly 
                                 values
08 Sep    40    Normal-fair      15 to 20% below predicted monthly 
                                 values    
09 Sep    40    Normal           15 to 20% below predicted monthly 
                                 values   

COMMENT: IPS HF Communications Warning 49 was issued on 6 September 
and is current for 6-8 Sep. Moderately depressed ionospheric 
conditions were observed across all AUS/NZ regions during the 
last 24 hours (UT day 6 Sep). These depressions are after-effects 
of active geomagnetic conditions experienced on UT day 4 Sep 
associated with coronal hole (CH 95) and the current moderately 
active conditions associated with arrival of the fast solar wind 
stream from the northern coronal hole (CH 96). HF conditions 
are expected to remain depressed over the next two days.

----------------------------------------------------------
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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