• MESO: Mesoscale Discussion 0984

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon May 26 03:05:11 2025
    ACUS11 KWNS 260304
    SWOMCD
    SPC MCD 260304=20
    ALZ000-MSZ000-LAZ000-260430-

    Mesoscale Discussion 0984
    NWS Storm Prediction Center Norman OK
    1004 PM CDT Sun May 25 2025

    Areas affected...Northern LA into central/southern MS and southwest
    AL

    Concerning...Severe Thunderstorm Watch 328...

    Valid 260304Z - 260430Z

    The severe weather threat for Severe Thunderstorm Watch 328
    continues.

    SUMMARY...Some wind-damage potential will spread southward late this
    evening.

    DISCUSSION...A QLCS and related outflow is surging quickly southward
    across central MS late this evening, with some southward
    acceleration also recently noted across northern LA. While moderate
    to strong buoyancy remains in place immediately downstream into
    southern MS and northeast LA, relatively weak low-level flow and
    deep-layer shear may hamper organization along the southward-moving
    QLCS segment with time. However, given the extensive surging outflow
    and rather strong pressure rises (greater than 4 mb in 2 hours), a
    loosely organized QLCS may move into parts of southern MS and
    southwest AL with time, with a continued threat of at least
    localized wind damage. Local watch expansion and/or downstream watch
    issuance may eventually be needed, depending on short-term trends.

    ..Dean/Mosier.. 05/26/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_YDF85aRlOOHBqFriFpWBwBm-4r-ueeanm-NsqaGcG0sEgVSrdPF0ZF13zbc8M5GqdaILDseB= OZX6WT7Z8AChzj3MF4$ for graphic product...

    ATTN...WFO...MOB...JAN...LIX...LCH...SHV...

    LAT...LON 31279244 31629278 32499268 32499243 32419178 32128992
    32008949 31878836 31738768 31188801 30908909 30899072
    31029194 31279244=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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