The December 2-3, 2005 Lake Effect Snow Event
Mike Evans
Index of Slides
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The December 2-3, 2005 Lake Effect Snow Event
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Outline
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00 hr 500 mb heights and vorticity – valid 02/18z
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12 hr 500 mb heights and vorticity – valid 03/06z
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00 hr Sea-level pressure and 850 mb temperature – valid 02/18z
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12 hr sea-level pressure and 850 mb temperature valid 03/06z
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Large-scale summary
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TYX reflectivity at 02/18z
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00 hr 925 mb and 850 mb wind, and 925 mb convergence valid 02/18z.
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IR satellite image at 02/18z
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Through 18z on the 2nd…
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To determine a snowfall forecast at Syracuse, examine:
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925 and 850 mb wind and 925 mb convergence valid 03/00z
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925 and 850 mb wind and 925 mb convergence valid 03/06z
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925 and 850 mb wind and convergence valid 03/12z
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925 and 850 mb wind and 925 mb convergence valid 03/18z
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Eta time-height forecast at SYR of convergence
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Eta forecast sounding at SYR valid 03/00z
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Eta forecast sounding at SYR valid 03/06z
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Eta forecast sounding at SYR valid 03/12z
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Eta forecast sounding at SYR valid 03/18z
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Eta forecast overview of omega and snow growth at SYR
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Comparison to previous events
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Previous event # 1
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Previous event # 2
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Previous event # 3
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Summary of Eta40 model forecast data
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Observations
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KTYX reflectivity 03/00z
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KTYX reflectivity 03/06z
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KTYX reflectivity 03/12z
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KTYX reflectivity 03/18z
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SYR Observations 12z-17z
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SYR observations 17z – 20z
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SYR observations 21z – 01z
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SYR observations 01z – 03z
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SYR observations 03z – 09z
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SYR observations 10z – 13z
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SYR observations 15z – 17z
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IR Satellite 03/00z
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IR Satellite 03/06z
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IR Satellite 03/12z
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NO TITLE
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SYR Profiler – 02/23z – 03/11z
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SYR profiler – 03/10z – 03/22z
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Observed snowfall 02/06z – 03/18z
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Summary
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