• MESO: Mesoscale Discussion 1726

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jul 19 22:18:34 2025
    ACUS11 KWNS 192218
    SWOMCD
    SPC MCD 192218=20
    IAZ000-NEZ000-200015-

    Mesoscale Discussion 1726
    NWS Storm Prediction Center Norman OK
    0518 PM CDT Sat Jul 19 2025

    Areas affected...Parts of eastern Nebraska into far western Iowa

    Concerning...Severe potential...Watch possible=20

    Valid 192218Z - 200015Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Should storms develop, large hail and severe winds would
    be possible. Convective trends will continue to be monitored, but a
    watch is not anticipated in the short term.

    DISCUSSION...Storms that developed and showed brief intensity in
    northeast Nebraska have since weakened. Additional cumulus
    development has been noted along another surface boundary in
    east-central Nebraska. While strong heating and a very moist airmass
    has allowed MLCAPE to rise above 3000 J/kg, forcing for ascent
    remains nebulous. With the weak forcing and anvil cirrus from a
    cluster of supercells in west-central Nebraska moving in, whether
    additional storms can initiate this afternoon is not clear. Strong
    effective shear and the large buoyancy would support at least brief
    storm organization and potential for large hail and severe wind
    gusts. Watch issuance in the short term is not certain, but
    convective trends will continue to be monitored.

    ..Wendt/Hart.. 07/19/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!98HOQkFkpSzruer1346fkcvIrng-6fYipHFVQPOEL4JDNJK_TDO27XwviY6c4eRx4bHn1Sxjw= 9y77Yb4IBM26Pv5Zgk$ for graphic product...

    ATTN...WFO...DMX...FSD...OAX...GID...

    LAT...LON 41919810 42179812 42479805 42709765 42549683 41979553
    41239532 41049544 40969570 40969645 40979707 40989739
    41089762 41299783 41919810=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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