• MESO: Mesoscale Discussion 0731

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 7 03:22:58 2025
    ACUS11 KWNS 070322
    SWOMCD
    SPC MCD 070322=20
    ALZ000-FLZ000-MSZ000-LAZ000-070515-

    Mesoscale Discussion 0731
    NWS Storm Prediction Center Norman OK
    1022 PM CDT Tue May 06 2025

    Areas affected...parts of sern MS...swrn AL...wrn FL PNHDL

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

    Valid 070322Z - 070515Z

    Probability of Watch Issuance...40 percent

    SUMMARY...There still appears potential for convection to become
    better organized and intensify through Midnight-2 AM CDT,
    accompanied by an increase in potential for strong to severe surface
    gusts.

    DISCUSSION...Vigorous thunderstorm development is generally being
    maintained within a broader area of convection, which continues to
    spread eastward with large-forcing for ascent across the lower
    Mississippi Valley. One relatively broad cyclonic mesoscale
    circulation remains evident near a clustering of persistent strong
    convection, now near a remnant weak baroclinic zone east of Natchez
    MS. There still appears potential for this circulation to
    strengthen along the thermal gradient, particularly as long as south/southeasterly updraft inflow continues to emanate from a moist
    low-level environment characterized by sizable CAPE. This appears
    to extend as far east as the Florida Panhandle. 03Z surface
    observations suggest that convection may be contributing to a
    notable surface pressure perturbation, with 3-4+ mb 2-hourly surface
    pressure rises sampled at Greenwood, Jackson, Brookhaven County
    Airport MS and Baton Rouge LA, and much weaker rises to weak falls
    downstream.

    ..Kerr/Smith.. 05/07/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_Qd3RfX-nZAo0YZ6OcIkvX6M0KE5C-7zEzA9QZ51-KfJWZworOtQ7aUGjWrD0TVRRyuf16wir= tGZBS2zD4OmTQKeaKw$ for graphic product...

    ATTN...WFO...BMX...MOB...JAN...LIX...

    LAT...LON 32468929 32448834 31928774 31298672 30298738 30058753
    30368919 30528989 31058980 31508959 32468929=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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