• MESO: Mesoscale Discussion 1323

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jun 17 02:27:48 2025
    ACUS11 KWNS 170226
    SWOMCD
    SPC MCD 170225=20
    NEZ000-KSZ000-170400-

    Mesoscale Discussion 1323
    NWS Storm Prediction Center Norman OK
    0925 PM CDT Mon Jun 16 2025

    Areas affected...Parts of south-central Nebraska into north-central
    Kansas

    Concerning...Severe Thunderstorm Watch 424...

    Valid 170225Z - 170400Z

    The severe weather threat for Severe Thunderstorm Watch 424
    continues.

    SUMMARY...Scattered severe wind gusts (some 75+ mph) is becoming the
    primary concern in Severe Thunderstorm Watch 424.

    DISCUSSION...An east/west-oriented convective line has become
    increasingly organized across parts of central NE as it moves slowly
    southward. Meanwhile, additional storms are evolving
    east-northeastward toward the evolving MCS from southwest NE and
    northwest KS. While the overall convective evolution is unclear,
    very steep deep-layer lapse rates and related strong surface-based
    instability (sampled by the 00Z DDC sounding), coupled with a 35-kt
    southerly low-level jet (per regional VWP), should favor scattered
    severe wind gusts (some 75+ mph) as storms continue drifting
    southward and begin merging.

    ..Weinman.. 06/17/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_01xA6S7PCLEoWgkSog24r22kX7CUYDJ9hsfI2sWuY6javyry9UAnYeCVB4-iTr6_c9bhN5Lt= _KAXOy_61DleqJaRJo$ for graphic product...

    ATTN...WFO...OAX...TOP...GID...LBF...GLD...

    LAT...LON 41179991 41349890 41359793 41069705 40669687 40169711
    39909820 39670035 39810085 40110123 40380124 40710101
    41179991=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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