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  • MESO: Mesoscale Discussion 0791

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tue May 19 20:27:02 2026
    ACUS11 KWNS 192026
    SWOMCD
    SPC MCD 192026=20
    OHZ000-INZ000-192130-

    Mesoscale Discussion 0791
    NWS Storm Prediction Center Norman OK
    0326 PM CDT Tue May 19 2026

    Areas affected...Central Indiana into Western Ohio

    Concerning...Severe potential...Severe Thunderstorm Watch likely=20

    Valid 192026Z - 192130Z

    Probability of Watch Issuance...80 percent

    SUMMARY...As convective coverage has increased this afternoon across
    central and northern Indiana, it has gradually begun to organize
    into line-segments/clusters. As these storms continue to organize,
    they could pose a damaging wind threat... particularly with any
    bowing line segments that may develop.

    DISCUSSION...Convective coverage has continued to increase over
    central and northern Indiana, especially over the last half hour.
    Recent MRMS trends show loose organization into line segments ahead
    of an environment characterized by strong DCAPE, steep low-level
    lapse rates, and well-mixed boundary layer profiles. While there is
    some uncertainty to which degree these storms will organize due to
    the relative lack of deep-layer shear, the environment supports the
    potential for damaging straight-line thunderstorm winds. This threat
    will be maximized along the leading edge of any bowing segments that
    develop.

    ..Halbert/Hart.. 05/19/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!482GCtaYVIDEE68HbVKNcENYM-NfAocGnDdvyTR5UiirTKXLcgLNo_yKZ99K-4p3cfsltvaFp= W-I7-Pw7t6sDDBEU0U$ for graphic product...

    ATTN...WFO...ILN...IWX...IND...

    LAT...LON 39508749 39988650 40498599 40798571 41048525 41248503
    41218434 40958411 40488429 39928458 39468489 39168512
    38888564 38878618 38928679 39018723 39208741 39508749=20

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