ZCZC SPCSWOMCD ALL
ACUS11 KWNS 162104 
SPC MCD 162104 
OHZ000-KYZ000-INZ000-ILZ000-MOZ000-170100-

Mesoscale Discussion 0147
NWS Storm Prediction Center Norman OK
0304 PM CST Fri Feb 16 2024

Areas affected...portions of southern Illinois into central and
southern Indiana...southwestern Ohio...extreme northern Kentucky

Concerning...Heavy snow 

Valid 162104Z - 170100Z

SUMMARY...Heavy snow will continue over the next several hours. At
least 1 inch/hour snowfall rates are expected, accompanied by
periods of reduced visibility.

DISCUSSION...Heavy snow has been on the increase in terms of
coverage and intensity over the last few hours as surface cold air
advection along/just north of the OH River is overspread by
continued warm-air/moisture advection aloft. Within a broader zonal
band of snow, the heaviest rates (i.e. 1+ inch/hr) should occur near
the 700 mb frontogenesis axis, where ascent within the dendritic
growth zone should be greatest. The heavier snow, along with reduced
visibility, should progress east-southeastward this afternoon into
the evening hours (per 12Z HREF calibrated guidance).

..Squitieri.. 02/16/2024

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...ILN...LMK...IND...PAH...ILX...LSX...

LAT...LON   39958370 39658349 39108370 38688435 38348555 38148742
            38088900 38238993 38459028 38699026 38759022 39048946
            39558723 39898549 40048470 39998389 39958370 

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