• MESO: Mesoscale Discussion 0617

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Apr 30 14:09:25 2025
    ACUS11 KWNS 301408
    SWOMCD
    SPC MCD 301407=20
    TXZ000-OKZ000-301600-

    Mesoscale Discussion 0617
    NWS Storm Prediction Center Norman OK
    0907 AM CDT Wed Apr 30 2025

    Areas affected...North TX into far southeast OK

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

    Valid 301407Z - 301600Z

    Probability of Watch Issuance...40 percent

    SUMMARY...A slow-moving bow will continue to move east across the
    Red River vicinity of southeast OK and northeast TX the next few
    hours. Sporadic strong gusts may occur in the short term.

    DISCUSSION...An organized bow extending from south-central OK into
    north TX this morning will continue to slowly shift east the
    remainder of the morning. Some occasional intensification with
    embedded cells, especially on the southern portions of the bow, as
    been noted over the past hour. A gust to 47 kt was most recently
    measured in Wise County TX. Downstream from this activity, upper 60s
    F dewpoints are in place and some filtered heating into far
    northeast TX is likely to occur, through much of the area will be
    cloudy with limited heating the next few hours. Nevertheless, 12z
    RAOB from FWD indicated very steep midlevel lapse rates greater than
    8 C/km above an EML around 700 mb, supporting modest MLCAPE.=20

    While severe potential should remain somewhat limited in the short
    term, a gradual increase in severe potential is expected into
    midday. Favorable vertical shear will support rotating cells within
    the line and perhaps developing ahead of the line later today. A new
    watch will likely be needed by midday, through timing is a bit
    uncertain given ongoing convection and a slowly destabilizing
    downstream airmass.

    ..Leitman/Hart.. 04/30/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9tXAzeoGL-iGZQRGS7wT_9UgENv8dLxCB3amnGhRtn1o0cUrJ8Ttu83fRHfX7Lt4-BPa525ks= qyQm1kdj9dMvQZlWt4$ for graphic product...

    ATTN...WFO...SHV...TSA...FWD...OUN...

    LAT...LON 33109828 33789723 34219658 34409574 34459510 34399474
    34209459 33349460 32679526 32389609 32219721 32349776
    32609813 33109828=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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