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

[Regional Warning Centre]

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

1. SUMMARY (19 JULY) 
Date   T index  Conditions    
19 Jul     7    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.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 20% after local dawn.
   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
Jun      7
Jul      -2
Aug      -3


2. FORECAST (20 JULY - 22 JULY)
Date   T index  Conditions       MUFs                              
20 Jul    15    Normal           Near to 15% above predicted 
                                 monthly values
21 Jul    10    Normal           Near predicted monthly values    
22 Jul     6    Normal           Near predicted monthly values   

COMMENT: Mostly normal HF conditions were observed across the 
Aus/NZ regions today (UT day 19 July) with periods of mild MUF 
enhancements in the Southern Australian region during local night 
and after local dawn. Incidents of sporadic-E were observed across 
Australian regions. Mostly normal HF conditions are expected 
in the Aus/NZ regions for the next three UT days (20-22 July). 
Periods of moderately degraded conditions are possible on 20 
July due to expected increase of geomagnetic activity.

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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
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