• MESO: Mesoscale Discussion 0729

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 7 01:10:52 2025
    ACUS11 KWNS 070110
    SWOMCD
    SPC MCD 070110=20
    MSZ000-LAZ000-TXZ000-070315-

    Mesoscale Discussion 0729
    NWS Storm Prediction Center Norman OK
    0810 PM CDT Tue May 06 2025

    Areas affected...in parts of sern TX...cntrl and srn LA...swrn MS

    Concerning...Tornado Watch 234...235...

    Valid 070110Z - 070315Z

    The severe weather threat for Tornado Watch 234, 235 continues.

    SUMMARY...Strong convection, embedded within a broader area of
    thunderstorm activity, could still gradually organize this evening
    across parts of central Louisiana into southwestern and south
    central Louisiana. Although uncertain, it is possible Tornado Watch
    234 will be allowed to expire as scheduled at 02Z.

    DISCUSSION...Although the primary surface baroclinic zone remains
    stalled across central Louisiana through southern Mississippi,
    consolidating convective development across much of southern into
    central Louisiana and southwestern Mississippi has primarily remain
    rooted within lift associated with warm advection, above the
    seasonably moist boundary layer. This idea is supported by 07/00Z
    raobs from Lake Charles and Slidell.

    If lift of boundary-layer parcels through at least weak inhibition
    evident in the 850-700 mb layer could be sustained, the environment
    still appears supportive of supercells with the conditional risk of
    a strong tornado. However, this is appearing less likely with time.
    It still might not be out of the question that stronger convection
    could gradually organize over the next few hours, particularly close
    to the frontal zone across southwestern/south central Mississippi.=20
    This could result in another developing mesoscale convective vortex,
    perhaps accompanied by increasing potential for strong to severe
    surface gusts.

    ..Kerr.. 05/07/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_NWQu0gWfOeeEcWQf7eqDI52SEe-RcAN6eDr6UkU4NWPh8ZbCYZ5KGPFQa3vjutlhI0B5SxjT= gfAb-5gk3InHstmx9g$ for graphic product...

    ATTN...WFO...JAN...LIX...LCH...SHV...HGX...

    LAT...LON 31909299 32119194 31979134 32289068 32138993 31278982
    30379055 29909148 29829318 30209465 31909299=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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