[Ips-dhfpr] SWS Daily HF Prop Report - 13 January 18 issued 2330 UT on 13 Jan 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 JANUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 JANUARY) 
Date   T index  Conditions    
13 Jan   -12    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      -10
Jan      4
Feb      4


2. FORECAST (14 JANUARY - 16 JANUARY)
Date   T index  Conditions       MUFs                              
14 Jan   -15    Normal           15 to 25% below predicted monthly 
                                 values
15 Jan   -15    Normal           15 to 25% below predicted monthly 
                                 values    
16 Jan     5    Normal           Near predicted monthly values   

COMMENT: MUFs experienced Minor to Moderate MUF depressions during 
the local night in the Niue Island Region, during the local day 
in the Northern Australian Region, and across the whole day in 
the Southern Australian Region. Periods of Sporadic E blanketing 
were also evident. On UT days 14-15 Jan, MUFs are expected to 
experience minor to moderate depressions due to the current geomagnetic 
activity, returning to near predicted monthly values on 16 Jan.

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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
Bureau of Meteorology
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