• MESO: Mesoscale Discussion 0717

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue May 6 16:15:06 2025
    ACUS11 KWNS 061614
    SWOMCD
    SPC MCD 061614=20
    LAZ000-MSZ000-TXZ000-061745-

    Mesoscale Discussion 0717
    NWS Storm Prediction Center Norman OK
    1114 AM CDT Tue May 06 2025

    Areas affected...southern Louisiana

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

    Valid 061614Z - 061745Z

    Probability of Watch Issuance...60 percent

    SUMMARY...There is an increasing supercell threat across southern
    Louisiana with a threat for large hail and perhaps a tornado.

    DISCUSSION...Scattered cloud cover has supported rapid
    destabilization south of a northward moving warm front across
    southern Louisiana. A strengthening low-level jet across southern
    Louisiana (45-50 knots per LCH VWP) has provided sufficient forcing
    for convective development late this morning. These storms which
    have developed have quickly shown supercellular characteristics amid
    40 knots of effective shear (per LCH VWP). While a tornado threat
    cannot be ruled out, storm propagation across the warm front should
    mostly support a hail threat from this activity.=20

    Due to the propagation across the front and displacement well east
    of the upper-level forcing, duration of the threat and necessity for
    a severe thunderstorm watch remains unclear.

    ..Bentley/Gleason.. 05/06/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8K3g-0SjCKwRYAMRisYHXBsMfX2nttMchsppxPjap8C5lFZZFPDY8cbiYa0RiVkZQjVE80mfJ= ryWULhBDojJ4pVu3-E$ for graphic product...

    ATTN...WFO...JAN...LIX...LCH...

    LAT...LON 30989361 31279253 31229172 30929058 30469020 29649072
    29409141 29539241 29739328 29909353 30989361=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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