[Ips-dhfpr] IPS Daily HF Prop Report - 16 September 15 issued 2330 UT on 16 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 SEPTEMBER) 
Date   T index  Conditions    
16 Sep    22    Fair-poor      

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 50% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 35% during local night.
      Depressed by 25% 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 (17 SEPTEMBER - 19 SEPTEMBER)
Date   T index  Conditions       MUFs                              
17 Sep    25    Fair-poor        20 to 30% below predicted monthly 
                                 values
18 Sep    30    Fair-poor        20 to 30% below predicted monthly 
                                 values    
19 Sep    40    Fair-poor        Near predicted monthly values   

COMMENT: IPS HF Communications Warning 52 was issued on 14 September 
and is current for 15-17 Sep. Significantly degraded HF conditions 
were observed during 15 September over the Australian region 
due to very low levels of ionising radiation and recently 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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