• MESO: Mesoscale Discussion 1787

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Aug 1 19:06:53 2024
    ACUS11 KWNS 011906
    SWOMCD
    SPC MCD 011906=20
    WIZ000-012100-

    Mesoscale Discussion 1787
    NWS Storm Prediction Center Norman OK
    0206 PM CDT Thu Aug 01 2024

    Areas affected...Wisconsin

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

    Valid 011906Z - 012100Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Thunderstorm coverage is expected to increase as
    destabilization in the vicinity of a weak surface low continues.
    More intense storms may be capable of severe wind, hail, and perhaps
    a short-lived tornado.

    DISCUSSION...Convection has been ongoing for much of the late
    morning and early afternoon hours across central WI in the vicinity
    of a weak surface low. Gradual cloud-top cooling has been noted over
    the past 30-60 minutes in GOES IR imagery, implying that convection
    is slowly becoming more intense amid continued daytime heating and
    gradually cooling mid-level temperatures. Thunderstorm activity is
    expected to increase along the surface fronts draped to the
    south/southeast of the low. Initially discrete cells quickly
    developing into clusters given the weak (20-25 knots) deep-layer
    wind shear noted in regional VWPs. More intense updraft pulses may
    be capable of large hail (generally between 0.75 to 1.25 inches),
    and perhaps a brief landspout tornado given ambient low-level
    vorticity in place along the surface boundaries and adequate
    low-level buoyancy. As convection grows upscale, damaging winds
    should become the predominant hazard. Limited wind shear magnitudes
    and a high probability for destructive storm interactions should
    modulate the overall severe threat. Watch issuance is not
    anticipated.

    ..Moore/Bunting.. 08/01/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5vOTyq28F_TBX-Vl9Ap5cwutGDdG1H2Gz1-fACYMhzcXyYLY4XkrnVfu3vq6jIc9PPR1nqSfU= CkTjxicmNk1oUAxho0$ for graphic product...

    ATTN...WFO...GRB...MKX...DLH...ARX...MPX...

    LAT...LON 45419122 45649088 45849035 45899006 45848971 45738934
    45568913 45228888 44148848 43518817 43178798 42948799
    42818804 42698820 42658842 42708863 42828937 42888953
    43148988 44669103 44949123 45119130 45419122=20


    =3D =3D =3D
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