• MESO: Mesoscale Discussion 1667

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jul 14 17:22:21 2025
    ACUS11 KWNS 141720
    SWOMCD
    SPC MCD 141720=20 MEZ000-NHZ000-MAZ000-VTZ000-CTZ000-NYZ000-NJZ000-PAZ000-141945-

    Mesoscale Discussion 1667
    NWS Storm Prediction Center Norman OK
    1220 PM CDT Mon Jul 14 2025

    Areas affected...VT/NH and western ME into eastern NY...western MA/CT...northeast PA...and northern NJ

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

    Valid 141720Z - 141945Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Storms capable of localized damaging winds are possible
    this afternoon.

    DISCUSSION...Convection is gradually deepening early this afternoon
    from western VT/ME into eastern NY and northeast PA. Continued
    heating of a very moist airmass will result in MLCAPE increasing
    above 1500 J/kg, and storm coverage is expected to increase with
    time as a midlevel shortwave trough over western PA approaches the
    region. Weak midlevel lapse rates will tend to limit updraft
    intensity, but modestly enhanced mid/upper-level flow and effective
    shear of 25-30 kt could support occasional storm organization.
    Relatively large PW (generally 1.5 - 1.8 inches) may result in
    localized downbursts with any stronger cells, while a few
    outflow-driven clusters could evolve with time. The strongest
    cells/clusters may be capable of producing localized damaging winds
    through the afternoon.

    ..Dean/Mosier.. 07/14/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6bNbZWLEGb_Si6LiYpA2_JuSnluyZcE0idgdwnBpI-YDKUbLjnuk8o5MbLA77TwO5bolZGOey= pP2enZKZkYofWHAHYE$ for graphic product...

    ATTN...WFO...CAR...GYX...BOX...BTV...OKX...ALY...PHI...BGM...
    CTP...

    LAT...LON 41517675 41807718 42147708 42557614 43477414 45097322
    45227158 46866999 47106872 46856832 45636945 45176986
    44547034 43827094 42897169 42347226 41497320 40547430
    40797495 41127576 41517675=20

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


    =3D =3D =3D
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