[Ips-dhfpr] SWS Daily HF Prop Report - 19 January 18 issued 2330 UT on 19 Jan 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 JANUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 JANUARY) 
Date   T index  Conditions    
19 Jan     1    Normal-fair    

Flares: none.

MUFs:
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   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      -10
Jan      4
Feb      4


2. FORECAST (20 JANUARY - 22 JANUARY)
Date   T index  Conditions       MUFs                              
20 Jan    -5    Fair             Near predicted monthly values/depressed 
                                 10 to 40%
21 Jan    -5    Fair             Near predicted monthly values/depressed 
                                 10 to 40%    
22 Jan     0    Normal-fair      Near predicted monthly values   

COMMENT: Mostly normal HF conditions were observed in the Aus/NZ 
regions today (19 January) with some periods of minor MUF depressions 
in the Southern parts of the region. Periods of Sporadic E blanketing 
were also evident. Expected enhancements in geomagnetic activity 
and continued very low levels of solar activity may result in 
minor to significant MUF depressions in the region on 20 and 
21 January. HF conditions may improve towards more normal levels 
on 22 January.

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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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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