• MESO: Mesoscale Discussion 0331

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Apr 2 01:02:27 2024
    ACUS11 KWNS 020102
    SWOMCD
    SPC MCD 020101=20
    ARZ000-TXZ000-OKZ000-020230-

    Mesoscale Discussion 0331
    NWS Storm Prediction Center Norman OK
    0801 PM CDT Mon Apr 01 2024

    Areas affected...portions of eastern Texas into southeastern
    Oklahoma

    Concerning...Severe potential...Watch likely=20

    Valid 020101Z - 020230Z

    Probability of Watch Issuance...80 percent

    SUMMARY...The severe threat is increasing across portions of
    northeastern Texas into southeastern Oklahoma. Severe hail and wind
    are the main threats, though a tornado cannot be ruled out. A WW
    issuance is likely over the next hour or so.

    DISCUSSION...A QLCS with embedded supercells is progressing across
    the metroplex, with copious amounts of 2-3 inch hail reported with
    the northernmost supercell. These storms are advancing eastward
    across a buoyant warm sector, overspread by 50-70 kts of effective
    bulk shear, so the severe threat is expected to persist with the
    ongoing storms for several more hours. The 00Z FWD observed sounding
    showed 9 C/km mid-level lapse rates and elongated hodographs. As
    such, embedded supercells should continue east of the ongoing
    watches with the potential for severe (50+ kt) gusts and large hail
    (with some 1-2 inch stones possible). Since the storms will be
    approaching the western extent of a low-level jet, a modest increase
    in low-level shear may also support the development of a tornado or
    two. A WW issuance will be needed soon to address the impending
    severe threat.

    ..Squitieri/Hart.. 04/02/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8yhsPqT50g-Wd1GK1mSsGsdLv7rCWI7C0zXtMZQC63VacD4SaFohhUacHfg0X1Qhoz2aXGXgY= KyXi8yJg4vpHj2D5QY$ for graphic product...

    ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

    LAT...LON 31489752 34509559 35359520 35509474 35209434 34359410
    33659408 32869445 32119524 31579619 31489752=20


    =3D =3D =3D
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