[Ips-dhfpr] SWS Daily HF Prop Report - 26 February 19 issued 2330 UT on 26 Feb 2019 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 FEBRUARY) 
Date   T index  Conditions    
26 Feb   -10    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Enhanced by 25% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   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      -27
Feb      -12
Mar      -13


2. FORECAST (27 FEBRUARY - 01 MARCH)
Date   T index  Conditions       MUFs                              
27 Feb   -30    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%
28 Feb   -30    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%    
01 Mar   -20    Fair-normal      Depressed 10 to 20%/near predicted 
                                 monthly values   

COMMENT: On UT day 26 February, MUFs were mostly near monthly 
predicted levels over most of the Australian region. Equatorial/Northern 
Aus regions experienced periods of mild depressions. Sporadic 
E layers were observed over some Australian ionosonde stations. 
Mild to Moderate depressions may be observed over the next three 
days, 27 February-1 March due to continued very low levels of 
ionising radiation from the Sun and expected disturbed geomagnetic 
conditions.

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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
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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