• MESO: Mesoscale Discussion 0053

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jan 12 17:36:57 2023
    ACUS11 KWNS 121736
    SWOMCD
    SPC MCD 121736=20
    ALZ000-121900-

    Mesoscale Discussion 0053
    NWS Storm Prediction Center Norman OK
    1136 AM CST Thu Jan 12 2023

    Areas affected...central AL

    Concerning...Tornado Watch 17...

    Valid 121736Z - 121900Z

    The severe weather threat for Tornado Watch 17 continues.

    SUMMARY...The supercell tornado risk will continue to focus over
    central AL through 19 UTC (1pm CST). A strong tornado is possible.

    DISCUSSION...KBMX radar imagery shows a pair of potentially tornadic
    supercells over central AL with a history of tornadoes in Hale
    County. Surface observation trends over southern AL indicate a
    tendency for surface winds to veer to south-southwesterly with some
    mixing (lowering) of surface dewpoints at several observation sites.
    Farther north in the vicinity of Selma and east to Montgomery, these
    limiting factors for low-level mesocyclones have not been observed,
    hence a favorable environment for tornadoes remains across central
    AL. The KBMX VAD has shown a marked intensification of low-level
    flow over the past 1-2 hours which is enlarging the hodograph. With
    the favorable embedded to quasi-discrete supercell storm mode being
    maintained at least for the next 1-2 hours, expecting the tornado
    risk to perhaps remain relatively high before eventual supercell to
    squall line transition and destructive interference gradually lessen
    the overall tornado risk.

    ..Smith.. 01/12/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!82DzeHEGuYAF_Fi9dMc7ISydsgl0S-jrl-NqFQdcDz0VEoJtT7Arq8yyf6eApON0S-tyQRXeh= lVzNKdVaPjmWiNj6to$ for graphic product...

    ATTN...WFO...BMX...MOB...

    LAT...LON 32148765 32838727 32968712 33248617 33048611 32408655
    32148765=20


    =3D =3D =3D
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