• MESO: Mesoscale Discussion 0734

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu May 9 21:40:05 2024
    ACUS11 KWNS 092139
    SWOMCD
    SPC MCD 092139=20
    GAZ000-ALZ000-MSZ000-092315-

    Mesoscale Discussion 0734
    NWS Storm Prediction Center Norman OK
    0439 PM CDT Thu May 09 2024

    Areas affected...northeastern Mississippi into a large portion of
    Alabama

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

    Valid 092139Z - 092315Z

    Probability of Watch Issuance...95 percent

    SUMMARY...Convective initiation is ongoing across northern Alabama,
    and will likely expand over the next 1 to 2 hours. New WW will
    likely be needed.

    DISCUSSION...Latest visible satellite imagery shows a developing
    convective tower near Birmingham, near the intersection of a weak
    west-to-east baroclinic zone, and an outflow boundary from prior
    convection that extends southward/south-southeastward into
    southeastern Alabama. While large-scale ascent appears to be weak,
    an otherwise volatile environment is in place, with mixed-layer CAPE
    averaging 3000 to 4000 J/kg on the warm side of these boundaries,
    and strong mid-level westerly flow (in excess of 60 kt at mid
    levels). Should additional convection evolve -- as appears likely
    per the character of the cu field -- substantial severe-weather risk
    would accompany the storms. This would include potential for
    strong/damaging winds and very large hail. Some tornado risk could
    also evolve locally, given the presence of the aforementioned
    boundaries, though low-level flow/shear appears limited at this
    time.

    ..Goss/Hart.. 05/09/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5NxKabEVB19kHmA88m2-FiwxIsu1GAThUawmlWKfW48Plp7mUNHkhCOfcH7R5O5ptbrB1Q177= I9llH8NnoKMpM5xxlI$ for graphic product...

    ATTN...WFO...FFC...TAE...BMX...HUN...MOB...MEG...JAN...

    LAT...LON 33578965 34068948 34108732 33468603 31848469 31578538
    32008709 32768819 32928935 33578965=20


    =3D =3D =3D
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