• MESO: Mesoscale Discussion 0074

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, February 06, 2019 11:33:05
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    ACUS11 KWNS 061032
    SWOMCD
    SPC MCD 061032
    MOZ000-061230-

    Mesoscale Discussion 0074
    NWS Storm Prediction Center Norman OK
    0432 AM CST Wed Feb 06 2019

    Areas affected...central MO

    Concerning...Freezing rain

    Valid 061032Z - 061230Z

    SUMMARY...Weak convection with a few embedded thunderstorms may
    yield pockets of freezing rain rates 0.05 inch per hour over the
    next 2 hours near the I-70 corridor in central MO.

    DISCUSSION...Radar imagery over the past hour (0930-1030z) has shown
    an area of convective development displaced 150 mi to the north of
    the surface front located along the AR/MO border. A weak QLCS is
    moving eastward through the lower OH Valley and in its wake, weak
    convective development has ensued within warm advection atop a
    shallow/cold airmass located over the lower MO Valley. Temperatures
    are currently ranging from the upper 20s F over west-central MO to
    freezing in between Columbia and St. Louis. Cold advection at the
    surface is relatively weak and suggestive of temperatures likely
    remaining above freezing at the western portion of the St. Louis
    exurbia. Therefore, freezing rain will likely focus over central MO
    where the surface temperatures and weak convection will promote
    pockets of freezing rain with rates around 0.05 inch per hour.

    ..Smith.. 02/06/2019

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

    ATTN...WFO...LSX...SGF...EAX...

    LAT...LON 38449156 38129310 38269367 38719369 39279176 38939141
    38449156



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