• MESO: Mesoscale Discussion 2231

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Nov 25 17:40:02 2025
    ACUS11 KWNS 251739
    SWOMCD
    SPC MCD 251739=20
    ALZ000-MSZ000-252015-

    Mesoscale Discussion 2231
    NWS Storm Prediction Center Norman OK
    1139 AM CST Tue Nov 25 2025

    Areas affected...Southwest into central Alabama...far southeastern
    Mississippi

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

    Valid 251739Z - 252015Z

    Probability of Watch Issuance...40 percent

    SUMMARY...An isolated supercell or two may eventually evolve out of
    convection along a confluence band in southern/central Alabama. A
    tornado or two and isolated wind/hail would be possible. The need
    for a watch is not certain, but convective trends will be monitored.

    DISCUSSION...Convection has gradually been deepening along a
    confluence zone in southwestern to central Alabama. A few of the
    stronger updrafts have shown at least weak rotation over the past
    hour. KBMX/KMXX VAD data show enlarged low-level hodographs near and
    south of an effective warm front. Broad cyclonic flow across the
    region will promote around 50 kts of effective shear in Alabama.
    Forcing for ascent at mid-levels will remain weak, but this may also
    allow development that occurs to remain discrete. The overall
    expectation is for diurnal heating to slowly destabilize the
    boundary layer this afternoon and allow for further strengthening of
    updrafts. A couple of isolated supercells are at least possible
    within this environment. Low-level shear will support a risk for a
    tornado or two. Isolated wind damage and marginally severe hail
    could also occur. Modest mid-level lapse rates and lack of better
    forcing keep storm coverage and intensity uncertain, but a watch is
    possible deepening on convective trends over the next couple of
    hours.

    ..Wendt/Thompson.. 11/25/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9cng3bt_ZiR8biWlbn6PijIa8CYrgo98ddVKFzXFFPkVFKjAyh2wO6u6tY99cr_IH05fY-HYd= LbznPCf1Of39XwAFao$ for graphic product...

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

    LAT...LON 31138846 31548870 31978856 32658741 32878705 32968682
    32968634 32458610 31808657 31358719 31228766 31088803
    31048815 31048815 31138846=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 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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