[Ips-dhfpr] SWS Daily HF Prop Report - 17 February 18 issued 2330 UT on 17 Feb 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 FEBRUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 FEBRUARY) 
Date   T index  Conditions    
17 Feb    10    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      No data available 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
Jan      -6
Feb      4
Mar      3


2. FORECAST (18 FEBRUARY - 20 FEBRUARY)
Date   T index  Conditions       MUFs                              
18 Feb     4    Normal           Near predicted monthly values
19 Feb     4    Normal           Near predicted monthly values    
20 Feb     4    Normal           Near predicted monthly values   

COMMENT: MUFs were mostly near predicted monthly values during 
the UT day 17 Feb over the Australian region. Minor depressions 
were also observed in the Northern Australian region during local 
day. There were a few cases of Sporadic E blanketing over the 
Australian ionosonde sites. For 18-20 Feb MUFs are expected to 
be mostly near predicted monthly values. Minor to moderate depressions 
can occur in the Southern hemisphere as a consequence of the 
recent minor increase in geomagnetic activity and low EUV levels.

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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
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