[Ips-dhfpr] SWS Daily HF Prop Report - 18 February 17 issued 2330 UT on 18 Feb 2017 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at sws.bom.gov.au
Sun Feb 19 10:30:27 EST 2017


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 FEBRUARY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 FEBRUARY) 
Date   T index  Conditions    
18 Feb     6    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values 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
Jan      0
Feb      18
Mar      16


2. FORECAST (19 FEBRUARY - 21 FEBRUARY)
Date   T index  Conditions       MUFs                              
19 Feb     4    Normal           Near predicted monthly values
20 Feb     5    Normal           Near predicted monthly values    
21 Feb    15    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 14 was issued on 16 February 
and is current for 17-19 Feb. MUFs were mostly near monthly predicted 
levels with sporadic minor depressions scattered across the Australian 
regions during UT day 18 February. Over the next two days (19-20 
February), similar MUF levels are expected as the ionosphere 
gradually recovers from disturbed geomagnetic conditions associated 
with the coronal hole.

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