• MESO: Mesoscale Discussion 0147

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Feb 16 21:04:59 2024
    ACUS11 KWNS 162104
    SWOMCD
    SPC MCD 162104=20
    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=20

    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 https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4FI_cSs7v7rD6lvVEsOE3TBW8A48yDikxD5yeXgBLRudahkCG2yI6SUJOMXocD8NWjyKMloiK= QaSgC3rYrzhuTPXIuU$ 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=20


    =3D =3D =3D
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