[Ips-dhfpr] SWS Daily HF Prop Report - 07 July 16 issued 2330 UT on 07 Jul 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 JULY 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 JULY) 
Date   T index  Conditions    
07 Jul    27    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      31
Jul      42
Aug      40


2. FORECAST (08 JULY - 10 JULY)
Date   T index  Conditions       MUFs                              
08 Jul    18    Normal-fair      Depressed 20 to 40%/near predicted 
                                 monthly values
09 Jul    20    Normal-fair      Depressed 10 to 30%/near predicted 
                                 monthly values    
10 Jul    25    Normal-fair      Depressed 10 to 25%/near predicted 
                                 monthly values   

COMMENT: SWS HF Communications Warning 31 was issued on 6 July 
and is current for 7-9 Jul. Mild to moderate MUF depressions 
were observed over the Equatorial and Northern Australian regions 
on UT day 7 July. These MUF depressions seem to have eventuated 
due to continued very low levels of ionising radiation and rise 
in geomagnetic activity on this day. Minor to moderate depressions 
in MUFs and degradations in HF conditions are likely in the Aus/NZ 
regions from 8 to 10 July due to continued very low levels of 
ionising radiation and the possibility of continued rise in geomagnetic 
activity levels during this period.

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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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