• MESO: Mesoscale Discussion 0975

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun May 25 21:53:15 2025
    ACUS11 KWNS 252153
    SWOMCD
    SPC MCD 252152=20
    NCZ000-GAZ000-TNZ000-ALZ000-252315-

    Mesoscale Discussion 0975
    NWS Storm Prediction Center Norman OK
    0452 PM CDT Sun May 25 2025

    Areas affected...Southeast TN...northeast AL...northwest GA

    Concerning...Severe Thunderstorm Watch 324...

    Valid 252152Z - 252315Z

    The severe weather threat for Severe Thunderstorm Watch 324
    continues.

    SUMMARY...A damaging-wind threat may spread east-southeastward into
    this evening.

    DISCUSSION...A relatively organized and long-lived QLCS is moving
    across northern AL and southeast TN late this afternoon. This system
    has been responsible for some tree damage across southern middle TN,
    and in the short term will continue moving across a moderately
    unstable environment, with MLCAPE approaching 1000 J/kg. As a
    result, damaging gusts will remain possible into early evening. A
    few smaller mesovortices were also noted as the QLCS came within
    close range of the KHTX radar, and these features may be capable of
    producing areas of more concentrated wind damage and possibly a
    brief tornado.=20

    Eventually, this system will encounter decreasing instability toward
    the southeast corner of TN and adjacent north-central GA, with the
    instability gradient having more of a northwest to southeast
    orientation in this area. This may result in the system taking more
    of a southeast movement, though the longevity of the severe threat
    is uncertain. However, at least an isolated wind-damage threat may
    spread east of WW 324, and local expansion of the watch may be
    needed.

    ..Dean.. 05/25/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9pIR83QtXUlJDBJHwdeCh4vqcFQvMFNG1IQK4YvSN1wA-DJZX-S-5dxLemT4G0eWLlqFePmfn= oYfg208lbRxmV9DzRo$ for graphic product...

    ATTN...WFO...MRX...FFC...OHX...BMX...HUN...

    LAT...LON 35598574 35628490 35468453 35008424 34498414 34118447
    34078503 34188595 34538633 35158587 35598574=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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