[Ips-dhfpr] SWS Daily HF Prop Report - 12 September 17 issued 2340 UT on 12 Sep 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 SEPTEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 SEPTEMBER) 
Date   T index  Conditions    
12 Sep    17    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available 
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      No data available over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10MeV Proton/PCA Event Began 11 09 2017 0235UT and is in progress
 and, 100MeV Proton/PCA Event Began 11 09 2017 0215UT and is in progress

Monthly T index:
Month  T index
Aug      10
Sep      5
Oct      4


2. FORECAST (13 SEPTEMBER - 15 SEPTEMBER)
Date   T index  Conditions       MUFs                              
13 Sep    20    Normal           Near predicted monthly values
14 Sep    15    Fair             Near predicted monthly values    
15 Sep     5    Fair             Near predicted monthly values   

COMMENT: MUFs were mostly near predicted monthly values over 
the last 24 hours in the Australian/NZ region, with periods of 
minor enhancements. HF conditions in this region are expected 
to be between slightly enhanced and near monthly predicted values 
for the next three days due increased solar ionising radiation 
and forecasted active conditions. High latitudes experienced 
poor HF conditions most likely due to PCA effects after increased 
proton levels.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
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