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  • MESO: Mesoscale Discussion 1191

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thu Jun 18 22:56:24 2026
    ACUS11 KWNS 182256
    SWOMCD
    SPC MCD 182255=20
    GAZ000-FLZ000-ALZ000-MSZ000-190100-

    Mesoscale Discussion 1191
    NWS Storm Prediction Center Norman OK
    0555 PM CDT Thu Jun 18 2026

    Areas affected...the central Gulf Coast into parts of GA

    Concerning...Tornado Watch 354...

    Valid 182255Z - 190100Z

    The severe weather threat for Tornado Watch 354 continues.

    SUMMARY...Locally damaging wind and brief tornadoes will remain
    possible into this evening.

    DISCUSSION...An extensive QLCS is ongoing as of 2255 UTC from
    western GA into southern AL. Rather strong low/midlevel flow remains
    in place along/ahead of this QLCS, in association with a midlevel
    shortwave trough and the remnants of TC Arthur. 0-1 km SRH of
    150-250 m2/s2 within the moist/tropical environment will continue to
    support brief-tornado potential, especially where the line has taken
    a more north-south orientation across western GA. There is some
    evidence of a moderately strong westerly rear-inflow jet from the
    KEOX VWP, which will support damaging-wind potential along that
    portion of the QLCS as it moves eastward across southwest GA and
    southeast AL.

    Substantial convection persists farther southwest into southern MS
    and southwest AL. Some enhancement to low-level shear/SRH persists
    in this area, which could support a wind-damage and brief-tornado
    threat in this region as well. However, the QLCS has taken on a less
    favorable east-west orientation in this area, which may tend to
    limit a more organized severe threat. Trends will continue to be
    monitored in this area for an uptick in storm intensity and
    organization this evening.

    ..Dean.. 06/18/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_gTz_Ru1pGEJp-xWww_86ADFlJ7kLbmJE9QNSXJUq74Bv_EPwNXYNzJkgPayoT2Cmq8tYBo6o= nNeCNcMCvvUxCsnq0Y$ for graphic product...

    ATTN...WFO...FFC...TAE...BMX...MOB...LIX...

    LAT...LON 30778947 31368731 31698541 33298483 33648484 33788442
    33698401 33488369 33088340 32458334 31888346 31268382
    30738454 30508541 30458607 30578759 30458917 30778947=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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