• MESO: Mesoscale Discussion 0166

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sat Mar 7 15:58:10 2026
    ACUS11 KWNS 071558
    SWOMCD
    SPC MCD 071557=20
    WVZ000-KYZ000-OHZ000-TNZ000-ALZ000-MSZ000-071830-

    Mesoscale Discussion 0166
    NWS Storm Prediction Center Norman OK
    0957 AM CST Sat Mar 07 2026

    Areas affected...parts of southern Ohio...much of Kentucky...western
    and middle Tennessee...and adjacent northern
    Mississippi/northwestern Alabama

    Concerning...Severe potential...Watch possible=20

    Valid 071557Z - 071830Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Gradually intensifying and organizing thunderstorm
    activity may pose increasing potential to produce strong to severe
    wind gusts while spreading eastward through 1-3 PM CST (2-4 PM EST).
    One or more severe weather watches may be needed within the next few
    hours.

    DISCUSSION...A corridor of stronger 2 hourly surface pressure rises
    (on the order of 3-5 mb) has been developing northeastward across
    the Batesville and Walnut Ridge vicinity of northeastern Arkansas
    into areas near/east of Poplar Bluff MO, in the wake of stronger
    convection developing northeastward/eastward along a slower moving
    congomerate outflow boundary. This appears to be accompanying a low
    amplitude perturbation and associated lower/mid-tropospheric jet
    streak forecast to overspread much of Kentucky and Tennessee through
    18-21Z. The Rapid Refresh suggests this belt of flow may weaken
    some, but maintain west-south winds in the 850-700 mb layer at
    speeds of 30-50 kt.=20=20

    Coupled with boundary-layer destabilization associated ongoing
    insolation, and continuing low-level moisture advection (including
    surface dew points increasing through the lower/mid 60s F) ahead of
    the convection, the environment appears likely to support at least
    gradually intensifying and organizing thunderstorm activity. As
    this proceeds through early and mid afternoon, potential for
    increasingly widespread strong to locally severe wind gusts seems
    likely to increase.

    ..Kerr/Guyer.. 03/07/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6lZubq295uG9ay7eXxznEtqundmaY24WFGCjhd1nqdxmB51FmL2D0nD8yVw5a8SQQxoU37r5N= MBhoI7DXc9dlqxV5b8$ for graphic product...

    ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...HUN...PAH...
    MEG...

    LAT...LON 37708632 39088432 38178232 37208338 34698803 34789016
    36968811 37708632=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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