[Ips-dhfpr] SWS Daily HF Prop Report - 04 August 19 issued 2339 UT on 04 Aug 2019

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 AUGUST 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 AUGUST) 
Date   T index  Conditions    
04 Aug    -2    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 50% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% 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
Jul      -2
Aug      -13
Sep      -15


2. FORECAST (05 AUGUST - 07 AUGUST)
Date   T index  Conditions       MUFs                              
05 Aug     0    Fair             Near predicted monthly values
06 Aug   -10    Fair             Near predicted monthly values    
07 Aug    -5    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) stayed mostly near 
predicted monthly values across the Australian/NZ regions on 
UT day 04 August, with moderate enhancements during the local 
night over most sites. The Cocos Island and the Northern Australian 
regions had minor depressions during the local day. Sporadic-E 
and Spread-F occurrences were observed over some sites. MUFs 
in the Australian/NZ regions are expected to stay mostly near 
the predicted monthly values for the next three UT days, 05-07 
August.

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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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