[Ips-dhfpr] SWS Daily HF Prop Report - 04 July 19 issued 2331 UT on 04 Jul 2019

Regional Warning Centre rwc at ips.gov.au
Fri Jul 5 09:31:27 EST 2019


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

1. SUMMARY (04 JULY) 
Date   T index  Conditions    
04 Jul    -1    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   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      -4
Jul      -12
Aug      -14


2. FORECAST (05 JULY - 07 JULY)
Date   T index  Conditions       MUFs                              
05 Jul     8    Normal-fair      Near to 15% above predicted 
                                 monthly values
06 Jul    -5    Normal           Near predicted monthly values    
07 Jul    -5    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) were mostly near predicted 
monthly values for all regions during UT day 4 July. Sporadic-E 
occurrences were observed over all Australian sites and in Antarctica. 
For 5 July, MUFs are expected to range mostly between near predicted 
monthly values to mildly enhanced ones; the enhanced levels are 
due to predicted increase in geomagnetic activity. For UT days 
6-7 July, MUFs are expected to range mostly near predicted monthly 
levels.

----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
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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