• MESO: Mesoscale Discussion 0043

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, January 22, 2019 20:21:09
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    ACUS11 KWNS 221921
    SWOMCD
    SPC MCD 221920
    IAZ000-MOZ000-KSZ000-NEZ000-222245-

    Mesoscale Discussion 0043
    NWS Storm Prediction Center Norman OK
    0120 PM CST Tue Jan 22 2019

    Areas affected...northeast KS...northwestern MO...southern IA

    Concerning...Freezing rain

    Valid 221920Z - 222245Z

    SUMMARY...Freezing rain rates approaching 0.05 inch per hour are
    possible beginning early this afternoon and spreading from west to
    east from northeast KS into southeast IA.

    DISCUSSION...Surface analysis places a cold front from east-central
    KS northeast through the Kansas City metro. Temperatures are
    falling into the upper 20s to near 30 degrees F behind the front. A
    mid-level trough located over the central High Plains this afternoon
    will continue to pivot east towards the region and large-scale
    forcing for ascent will gradually increase in the vicinity of the
    frontal zone this afternoon. Forecast soundings show a warm nose
    with temperatures above freezing around 800 mb atop a 1 km deep
    layer at or below freezing---indicative of freezing rain as the
    favored precipitation type before transitioning to sleet over KS and
    MO later this afternoon. The latest ECMWF guidance suggests
    freezing rain rates near 0.05 inch per 3 hours will become
    increasingly common by late afternoon.

    ..Smith.. 01/22/2019

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

    ATTN...WFO...DVN...DMX...EAX...OAX...TOP...

    LAT...LON 38699674 39939603 40939393 41349229 41059149 40619149
    40459228 40339368 39959472 39139568 38609612 38699674



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