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

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 FEBRUARY) 
Date   T index  Conditions    
19 Feb    -8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% 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 (20 FEBRUARY - 22 FEBRUARY)
Date   T index  Conditions       MUFs                              
20 Feb   -10    Normal           Near predicted monthly values
21 Feb   -15    Normal           Near predicted monthly values    
22 Feb   -15    Normal           Near predicted monthly values   

COMMENT: On UT day 19 February, MUFs were mostly near monthly 
predicted levels over the Australian region. Mild to moderate 
enhancements were observed in Northern Australian and Cocos Island 
regions during the local night. Moderate depressions were observed 
in the Northern Australian region during the local day. Sporadic 
E layers were seen across the region. During the next three UT 
days, 20-22 February, MUFs are expected to be mostly near monthly 
predicted levels. However, mild to moderate depressions are possible 
due to continued very low levels of ionising radiation from the 
Sun.

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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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