• MESO: Mesoscale Discussion 0419

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Apr 24 09:27:05 2021
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    ACUS11 KWNS 240926
    SPC MCD 240926=20

    Mesoscale Discussion 0419
    NWS Storm Prediction Center Norman OK
    0426 AM CDT Sat Apr 24 2021

    Areas affected...southern Mississippi and Alabama...western Florida

    Concerning...Tornado Watch 105...

    Valid 240926Z - 241130Z

    The severe weather threat for Tornado Watch 105 continues.

    SUMMARY...A corridor of enhanced damaging-wind risk as well as
    tornado and hail threat is currently evolving over southern
    Mississippi and Alabama. Another watch may eventually be needed
    downstream of watch 105.

    DISCUSSION...A long-lived squall line continues to move east across
    LA and MS, and has recently become better oriented relative to the
    deep-layer shear to enhance severe potential. The air mass continues
    to moisten ahead of this line, with falling surface pressures. Very
    strong shear will favor damaging gusts as well as a QLCS tornado

    Ahead of this line and along the warm front, a supercell is evident
    into over Clarke and Monroe Counties in AL. Surface observations
    ahead of this storms continue to warm, suggesting a continued severe
    threat all the way across southern AL this morning. The threat may
    extend east of WW 105 prior to expiration, suggesting another watch
    may be needed farther east.

    ..Jewell.. 04/24/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!pViVc-VabmCoxr7W_tVV3VuT-b4jQXew8iu3bZukXTGQGvMLETAbEcS4zJigKR-hrTbm603G$=
    for graphic product...


    LAT...LON 31628788 31758662 31608638 31358627 31168634 30968753
    30788869 30818891 30948887 31138881 31298876 31478837

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