[Ips-dhfpr] SWS Daily HF Prop Report - 18 January 20 issued 2331 UT on 18 Jan 2020

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 JANUARY 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 JANUARY) 
Date   T index  Conditions    
18 Jan   -18    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values 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      -29
Jan      -16
Feb      -17


2. FORECAST (19 JANUARY - 21 JANUARY)
Date   T index  Conditions       MUFs                              
19 Jan   -23    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
20 Jan   -25    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%    
21 Jan   -25    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: Maximum usable frequencies (MUFs) were mostly near predicted 
monthly values for the Australian region on UT day 18 January 
with some periods of minor to moderate depressions as well as 
periods of minor enhancements. Sporadic-E occurrences were also 
observed over some stations. Similar levels of ionospheric support 
is expected for the next three UT days, 19 to 21 January.

----------------------------------------------------------
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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