• MESO: Mesoscale Discussion 0075

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Feb 14 20:06:06 2026
    ACUS11 KWNS 142006
    SWOMCD
    SPC MCD 142005=20
    LAZ000-TXZ000-142230-

    Mesoscale Discussion 0075
    NWS Storm Prediction Center Norman OK
    0205 PM CST Sat Feb 14 2026

    Areas affected...Parts of east TX into western LA

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

    Valid 142005Z - 142230Z

    Probability of Watch Issuance...60 percent

    SUMMARY...The severe threat is expected to gradually increase
    through the afternoon. Watch issuance may eventually be needed,
    though timing is uncertain.

    DISCUSSION...A loosely organized QLCS has developed across parts of north-central TX early this afternoon, with occasional weak
    low-level rotation noted along the leading edge of the line. Weak
    buoyancy and poor low-level lapse rates have likely limited the
    severe threat thus far across north TX, while a persistent capping
    inversion (noted on the 18Z CRP/LCH soundings and a special College
    Station sounding) has inhibited development of deep convection
    farther south into central TX. However, increasing ascent associated
    with an approaching mid/upper shortwave trough and filtered diurnal
    heating are expected to weaken the cap and gradually increase
    warm-sector buoyancy with time. An increase in storm coverage and
    organization is still expected by late afternoon along the composite outflow/cold front, as convection approaches east TX.=20

    Area VWPs generally depict gradually strengthening low-level flow
    and enlarging hodographs, and this trend is expected to continue as
    low-level mass response increases and a surface low begins to
    consolidate and deepen near the ArkLaTex by late afternoon/early
    evening. The strengthening ascent and effective SRH may result in
    development of a more organized QLCS across parts of east/southeast
    TX by late afternoon. While questions remain regarding the impact of
    poor low-level lapse rates (as noted on the 18Z SHV sounding) on the
    north and east extent of the severe threat, gradually increasing
    damaging-wind and line-embedded tornado potential may necessitate
    watch issuance by mid to late afternoon.

    ..Dean/Gleason.. 02/14/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7uyUkjTDfaWIkAFGKHGyXsHtWL6NncK0eHNYsDsJrP41tbOwPGUkEv26k7IzUpWrQzWYSK6tK= zsfDjfnJC-T_q2VBds$ for graphic product...

    ATTN...WFO...LCH...SHV...HGX...FWD...EWX...

    LAT...LON 32619549 32629478 32619424 32539369 32249346 31309336
    30599350 29189384 28949524 29339613 29719677 30359662
    31229634 32619549=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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    * Origin: Capitol City Online (1:2320/105)