• MESO: Mesoscale Discussion 0522

    From COD Weather Processor@1:2320/107 to [email protected] on Fri Apr 24 23:02:15 2026
    ACUS11 KWNS 242302
    SWOMCD
    SPC MCD 242301=20
    NEZ000-COZ000-250100-

    Mesoscale Discussion 0522
    NWS Storm Prediction Center Norman OK
    0601 PM CDT Fri Apr 24 2026

    Areas affected...Portions of western Nebraska

    Concerning...Severe potential...Watch unlikely=20

    Valid 242301Z - 250100Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated thunderstorms may be capable of producing
    sporadic strong to severe downburst winds over the next couple of
    hours.

    DISCUSSION...Latest lightning data shows a recent uptick in activity
    associated with a cluster of weak/shallow convection over parts of
    western NE. This is likely attributable to convection beginning to
    impinge upon a narrow plume of very modest low-level moisture
    (dewpoints in the low 30s), which is supporting around 250 to
    perhaps 500 J/kg SBCAPE. Additional thunderstorm development appears
    possible over the next couple of hours as this cluster of shallow
    convection drifts east across the buoyancy axis. Dewpoint
    depressions on the order of 30-35 F (which hint at deep
    boundary-layer mixing) coupled with modest effective bulk shear
    (30-35 knots) may support strong to severe downburst winds to the
    west of the Highway 83 corridor. Given the meager and narrow plume
    of the effective warm sector and coming onset of nocturnal cooling,
    any severe threat is expected to remain fairly localized and
    relatively short-lived.

    ..Moore/Leitman.. 04/24/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!70pbSOWn8lmk5WBBuZ1Wn9Hp-tjpuOUtySj6kfD5Pb4gYGXiEi-MqE9r6mdAX6qsEDPiTYVZv= p7o0xDyINImP_6xQu4$ for graphic product...

    ATTN...WFO...LBF...BOU...

    LAT...LON 41610216 41980205 42330167 42450111 42340061 42060041
    41460027 40890040 40480090 40420136 40490181 40570192
    40780211 41280220 41610216=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at [email protected] and ask to be removed from WX-STORM.

    --- SBBSecho 3.28-Linux
    * Origin: Capitol City Online (1:2320/107)