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  • MESO: Mesoscale Discussion 0037

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jan 24 03:23:23 2026
    ACUS11 KWNS 240323
    SWOMCD
    SPC MCD 240322=20
    ARZ000-OKZ000-240715-

    Mesoscale Discussion 0037
    NWS Storm Prediction Center Norman OK
    0922 PM CST Fri Jan 23 2026

    Areas affected...central and eastern Oklahoma into far west-central
    Arkansas

    Concerning...Heavy snow=20

    Valid 240322Z - 240715Z

    SUMMARY...Moderate to heavy snowfall to increase in coverage through
    the evening. Rates 1"/hr will be possible.

    DISCUSSION...Snowfall has increased in coverage across portions of
    central Oklahoma over the last hour, with some reports of moderate
    snow south of the Oklahoma City metro. Correlation coefficient in
    recent radar imagery shows a transition zone of primarily snow and
    sleet south of I-40 from roughly northern Pontotoc County north and
    east to northern Le Flore County near the Arkansas state line.=20

    Initially, drier air was in place with larger dew point spreads but
    moistening has been observed with rising dew points and implied
    saturating profile which will has lead to an increase in snowfall
    rates over the last hour. Moderate to locally heavy snowfall can be
    expected to expand in coverage over the next few hours across central/northeastern Oklahoma with occasional rates around 1"/hr.

    Through the evening into early Saturday morning, increasing 850-700
    mb frontogenesis will increase across a zone from south-central
    Oklahoma into eastern Oklahoma/western Arkansas across a strong warm
    advection zone. As moistening continues to occur further east amid
    this favorable ascent zone, snowfall rates should increase, with
    likely rates around 1"/hr along the I-40 corridor around 06-09z.

    ..Thornton.. 01/24/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!73mavmFnJK8IHluI5vvTMY0BcW9cgOKi99-Fv0qTlivhPvd807I7T31FaHNdnpwvrWtmKtXHH= ypSdpQ8xexbqOwIfBk$ for graphic product...

    ATTN...WFO...TSA...OUN...

    LAT...LON 35239441 35059512 35019659 34949750 34989767 35049790
    35309801 35759737 35979712 36179665 36209590 36239511
    36199467 36119440 35549421 35239441=20


    =3D =3D =3D
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