[Ips-dhfpr] SWS Daily HF Prop Report - 24 May 17 issued 2335 UT on 24 May 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 MAY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 MAY) 
Date   T index  Conditions    
24 May     8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values 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
Apr      14
May      12
Jun      12


2. FORECAST (25 MAY - 27 MAY)
Date   T index  Conditions       MUFs                              
25 May    12    Normal           Near predicted monthly values
26 May     0    Fair-poor        Near predicted monthly values/depressed 
                                 10 to 30%    
27 May     0    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: SWS Preliminary HF Communications Warning 29 was issued 
on 24 May and is current for 26-27 May. Near predicted monthly 
MUFs observed for the UT day, 24 May. Expect near predicted monthly 
MUFs for the UT day, 25 May in the Australian region. On 26 May 
there may be Minor to Moderated depressions late in the UT day 
depending on the timing of the expected arrival of the coronal 
mass ejection that is likely to hit the Earth.

----------------------------------------------------------
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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