[Ips-dhfpr] SWS Daily HF Prop Report - 17 January 20 issued 2333 UT on 17 Jan 2020

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 JANUARY 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 JANUARY) 
Date   T index  Conditions    
17 Jan   -28    Normal-fair    

Flares: None

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% 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 (18 JANUARY - 20 JANUARY)
Date   T index  Conditions       MUFs                              
18 Jan   -25    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
19 Jan   -25    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%    
20 Jan   -28    Normal-fair      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 17 January 
with some periods of minor to moderate depressions as well as 
periods of minor to moderate enhancements. Sporadic-E occurrences 
were also observed over some stations. Similar levels of ionospheric 
support is expected for the next three UT days, 18 to 20 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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