• MESO: Mesoscale Discussion 0013

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jan 9 16:49:41 2026
    ACUS11 KWNS 091649
    SWOMCD
    SPC MCD 091649=20
    ALZ000-MSZ000-LAZ000-091845-

    Mesoscale Discussion 0013
    NWS Storm Prediction Center Norman OK
    1049 AM CST Fri Jan 09 2026

    Areas affected...South-central/southeast LA into southern/central MS
    and southwest AL

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

    Valid 091649Z - 091845Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Some threat for locally damaging wind and/or a tornado may
    continue through the late morning to early afternoon.

    DISCUSSION...A storm cluster with occasional embedded rotating cells
    is ongoing this morning near the southern MS/AL border. This cluster
    is occurring within the MLCAPE gradient, along the eastern periphery
    of deeper low-level moisture that is being advected in from the
    southwest. As the buoyancy plume gradually expands eastward, this
    cluster may persist though at least late morning. While there has
    been some recent weakening of low-level flow, the KHDC and KMOB VWPs
    continue to depict low-level hodograph enlargement, and some threat
    for a brief tornado and/or locally damaging wind may continue for as
    long as this cluster persists.=20

    Farther west, some increase in convection has been noted across south-central/southeast LA, within a moist and uncapped environment.
    While large-scale ascent will remain relatively subtle in the short
    term, modest low-level warm advection may continue to support storm
    development and maturation in this area, and also potentially
    farther north into parts of central MS, near the northern periphery
    of deeper low-level moisture. While there may be some weakening and
    veering of low-level flow with time in this area, strong deep-layer
    shear will support organized storms, including some supercell
    potential.=20

    Some threat for a tornado, locally damaging wind, and possibly
    isolated hail could accompany any organized storms within the
    broader warm sector into early afternoon, though short-term coverage
    is uncertain and may remain isolated until a more substantial
    increase in severe potential later this afternoon into the evening.

    ..Dean/Smith.. 01/09/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6ymKgUeTz_OOWtp00FUEMW_dCg3kfVqGgLTIGyOmDeZ4wxio0ShdlvcLCK0zpEOXGsvlvIOLg= U4GCkY9bo8qrNO8qYo$ for graphic product...

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

    LAT...LON 32579028 32828951 32868861 32728798 32578751 32378736
    31488772 31188790 30648839 30459057 30289109 30099157
    30119216 30459226 30989184 32579028=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/105)