• MESO: Mesoscale Discussion 1797

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jul 26 23:01:04 2025
    ACUS11 KWNS 262300
    SWOMCD
    SPC MCD 262300=20
    PAZ000-270030-

    Mesoscale Discussion 1797
    NWS Storm Prediction Center Norman OK
    0600 PM CDT Sat Jul 26 2025

    Areas affected...portions of western into southern Pennsylvania

    Concerning...Severe potential...Watch unlikely=20

    Valid 262300Z - 270030Z

    Probability of Watch Issuance...20 percent

    SUMMARY...A few damaging gusts may occur over the next few hours.
    The overall severe threat should remain isolated.

    DISCUSSION...An MCS has been steadily organizing over western PA
    over the past couple of hours. This MCS will continue to propagate east-southeastward amid a buoyant airmass, characterized by over
    2000 J/kg MLCAPE. Furthermore, deep-layer westerly flow around the
    upper ridge is promoting roughly 35 kts of effective speed shear,
    oriented roughly perpendicular to the MCS leading-line. This may
    foster continued organization of the MCS, with a few strong,
    damaging wind gusts possible. The best chance for damaging gusts
    will be with storm interactions between cells embedded in the MCS
    with those in the free warm sector. However, severe gusts should
    remain more sparse, so a Severe Thunderstorm Watch issuance is not
    currently expected.

    ..Squitieri/Mosier.. 07/26/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4BUNxFTAH8biW0tGHjQV5a3WUOSWRTDE6m9PVAjGsg2adgywU1Aa_bzKMo6NDp5IYOmS7Xaxt= 2vzK7VuIQj4gp2Ih80$ for graphic product...

    ATTN...WFO...CTP...PBZ...

    LAT...LON 41347971 41277862 40957747 40617675 40237645 39977659
    39867701 39827771 39897836 39967892 40107944 40247970
    40507990 41347971=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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