[Ips-dhfpr] IPS Daily HF Prop Report - 08 September 15 issued 2330 UT on 08 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (08 SEPTEMBER) 
Date   T index  Conditions    
08 Sep    19    Normal-poor    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Depressed by 45% during local day.
      Depressed by 45% during local night.
      Depressed by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 35% over the UT day.

PCA Event : No event.

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


2. FORECAST (09 SEPTEMBER - 11 SEPTEMBER)
Date   T index  Conditions       MUFs                              
09 Sep    30    Fair             15 to 35% below predicted monthly 
                                 values
10 Sep    40    Normal-fair      10 to 25% below predicted monthly 
                                 values    
11 Sep    35    Normal-fair      15 to 30% below predicted monthly 
                                 values   

COMMENT: Due to very low levels of ionising radiation and effect 
of an increase in geomagnetic activity levels, mild to significant 
MUF depressions and degradations in HF conditions were observed 
over the last 24 hours in the Aus/NZ regions. Nearly similar 
HF conditions may be observed on 9 September with the possibility 
of slight improvements on 10 September. HF conditions may again 
further deteriorate on 11 September due to an expected rise in 
geomagnetic activity from that day.

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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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