[Ips-dhfpr] IPS Daily HF Prop Report - 13 September 15 issued 2330 UT on 13 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 SEPTEMBER) 
Date   T index  Conditions    
13 Sep    15    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 35% during local day.
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 30% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 35% during local day.
      Depressed by 30% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

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


2. FORECAST (14 SEPTEMBER - 16 SEPTEMBER)
Date   T index  Conditions       MUFs                              
14 Sep    20    Normal-fair      10 to 20% below predicted monthly 
                                 values
15 Sep    15    Fair             10 to 30% below predicted monthly 
                                 values    
16 Sep    20    Normal-fair      10 to 20% below predicted monthly 
                                 values   

COMMENT: 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 may be expected from 14 
to 16 September due to expected continued enhancements in geomagnetic 
activity levels and very low levels of ionising radiation during 
this period.

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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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