• MESO: Mesoscale Discussion 0404

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Apr 13 20:54:19 2026
    ACUS11 KWNS 132054
    SWOMCD
    SPC MCD 132053=20
    KSZ000-132300-

    Mesoscale Discussion 0404
    NWS Storm Prediction Center Norman OK
    0353 PM CDT Mon Apr 13 2026

    Areas affected...portions of eastern Kansas

    Concerning...Severe potential...Watch unlikely=20

    Valid 132053Z - 132300Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated thunderstorms may develop along a dryline across
    portions of eastern Kansas this afternoon/evening. Any storms that
    do develop will bring a threat for all hazards, with the main threat
    large to very large hail.

    DISCUSSION...Latest visible satellite imagery depicts an area of
    deepening cumulus along a dryline in the vicinity of Wichita,
    Kansas. Ahead of this dryline, surface temperatures in the mid-80s
    and dewpoints in the mid-60s F are contributing to 2000-2500+ J/kg
    MLCAPE within the warm sector. Steep mid-level lapse rates (evident
    on the 18Z LMN special sounding), elongated hodographs (effective
    bulk shear of 30-35+ kts per latest mesoanalysis), and ample
    buoyancy within the hail growth zone will support the potential for
    large to very large hail to 3+ inches in diameter with any storm
    that does develop. The tornado threat remains somewhat more
    conditional on a storm persisting into the evening hours when a
    strengthening nocturnal low-level jet will support increasing
    low-level hodograph curvature and an accompanying increase in the
    tornado threat for any ongoing supercells.

    Watch issuance appears unlikely at this time owing to uncertainty
    regarding the occurrence of convective initiation. Trends will be
    closely monitored and a watch may be needed should initiation appear
    imminent given the conditionally favorable environment.

    ..Chalmers/Hart.. 04/13/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5EzjKG_4yBQAtBuDovHyg4xQ3bGpWLlkWVW3JR3aAfyu5E8fqdXQj0uF5ypEOcpsPjCDK86-q= xfEzHLZZiAbnBPe-zw$ for graphic product...

    ATTN...WFO...SGF...EAX...TOP...ICT...

    LAT...LON 37629505 37259551 37059638 37129741 37369761 37859758
    38829716 39309681 39569631 39579562 39299513 38709495
    38139494 37629505=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/107)