• MESO: Mesoscale Discussion 0893

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue May 20 01:04:58 2025
    ACUS11 KWNS 200104
    SWOMCD
    SPC MCD 200104=20
    ARZ000-OKZ000-200230-

    Mesoscale Discussion 0893
    NWS Storm Prediction Center Norman OK
    0804 PM CDT Mon May 19 2025

    Areas affected...Parts of northwest Arkansas

    Concerning...Tornado Watch 297...

    Valid 200104Z - 200230Z

    The severe weather threat for Tornado Watch 297 continues.

    SUMMARY...The risk of tornadoes (some possibly strong) and damaging
    winds continues spreading eastward across parts of northwest
    Arkansas.

    DISCUSSION...A north/south-oriented MCS is tracking eastward across
    northwest Arkansas. Around 50 kt of 0-6 km shear (per area VWP data)
    is oriented oblique to the gust front of this system, which is
    supporting the maintenance of several deeper/embedded rotating
    updrafts -- aided by moderately unstable surface-based inflow (see
    LZK 00Z sounding). These embedded supercell/mesovortex structures
    will continue to pose a tornado risk (some possibly strong) with
    eastward extent -- given ample low-level streamwise vorticity (300
    m2/s2 0-1km SRH sampled by LZK VWP). Damaging winds will also remain
    possible, especially in the vicinity of any
    supercells/mesovorticies.

    ..Weinman.. 05/20/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7FzTzcrEOfG7Z9ur159BLS38n3TBjwUbMVye99gZTx4gA3brMnYB3ks5k9GNrBWHPfFQ7j-64= aG7eQJt5h773VQnTXY$ for graphic product...

    ATTN...WFO...LZK...TSA...

    LAT...LON 35079464 35849415 36379397 36449353 36449321 36309276
    36059257 35209298 34949338 34909436 35079464=20

    MOST PROBABLE PEAK TORNADO INTENSITY...120-150 MPH
    MOST PROBABLE PEAK WIND GUST...75-90 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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