• MESO: Mesoscale Discussion 0983

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun May 26 20:27:15 2024
    ACUS11 KWNS 262027
    SWOMCD
    SPC MCD 262026=20
    ILZ000-WIZ000-262200-

    Mesoscale Discussion 0983
    NWS Storm Prediction Center Norman OK
    0326 PM CDT Sun May 26 2024

    Areas affected...portions of far southeast Wisconsin into Northeast
    Illinois

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

    Valid 262026Z - 262200Z

    Probability of Watch Issuance...20 percent

    SUMMARY...A conditional severe threat exists, including the
    potential for a tornado or a couple bouts of strong wind gusts/hail.
    Given the isolated and brief nature of the severe threat, a WW
    issuance is not expected.

    DISCUSSION...Airmass recovery is occurring within the warm sector
    ahead of the surface low along the WI/IL border, with diurnal
    heating supporting temperatures approaching the 70 F mark amid mid
    60s F dewpoints. Ahead of a surface trough, where SBCAPE is
    exceeding 1000 J/kg, surface wind remain backed, with substantial
    veering and strengthening of the low-level wind field contributing
    to elongated and curved hodographs. 20Z mesoanalysis show over 200
    m2/s2 effective SRH in place. As such, any storm that can develop
    ahead of the surface trough axis before surface winds veer may pose
    a brief tornado threat, along with strong wind gusts and some hail.
    Confidence in this conditional scenario is not overly high,
    precluding a WW issuance at this time.

    ..Squitieri/Bunting.. 05/26/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8haTLzK6a7LjwhxneeX7Q9hzKAvhmLroMFeIPXcvuWeuQi65CZ1DzQMzMsCv6wmib2KIprbPz= b-XRI8Rg-_CeLyvKJk$ for graphic product...

    ATTN...WFO...LOT...MKX...DVN...

    LAT...LON 41588919 42598920 43068869 43098821 42718780 42228768
    41768790 41488857 41588919=20


    =3D =3D =3D
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