• MESO: Mesoscale Discussion 1607

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jul 8 19:33:55 2025
    ACUS11 KWNS 081932
    SWOMCD
    SPC MCD 081932=20
    NJZ000-PAZ000-DEZ000-MDZ000-VAZ000-DCZ000-082130-

    Mesoscale Discussion 1607
    NWS Storm Prediction Center Norman OK
    0232 PM CDT Tue Jul 08 2025

    Areas affected...Portions of the Mid-Atlantic

    Concerning...Severe Thunderstorm Watch 496...

    Valid 081932Z - 082130Z

    The severe weather threat for Severe Thunderstorm Watch 496
    continues.

    SUMMARY...A line of thunderstorms is showing signs of
    intensification; the damaging wind potential is expected to increase
    over the coming hours as the line of storms approaches the I-95
    corridor.

    DISCUSSION...Latest GOES IR imagery shows steady cloud-top cooling
    of individual cells embedded within a developing convective band as
    convection begins moving off of the higher terrain and into a very
    buoyant air mass in place downstream across the Mid-Atlantic. Latest
    RAP mesoanalysis estimates suggest that MLCAPE ahead of the
    developing line has increased to around 2500 J/kg as surface
    temperatures warm into the mid 90s. Additionally, regional VWPs are
    sampling 20-30 knot mid-level winds, which is supporting slightly
    stronger deep-layer bulk shear values than depicted by recent
    RAP/mesoanalysis estimates, which should contribute to better
    organization and longevity of the developing band. Consequently, the intensification trend is expected to continue as storms spread east
    over the next few hours. As this occurs, the potential for
    damaging/severe winds should also increase as cold pool consolidation/organization continues. Recent storm track estimates
    suggest that this activity should reach the I-95 corridor roughly
    during the 20-22 UTC time frame, which should be when diurnal
    heating and MLCAPE magnitudes will be maximized.

    ..Moore.. 07/08/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-rU3R0DwNJgwAMvBJWK9ZCxqeTxmdDd2z9K3XchaIOnIxvj-iuQDblY9FtjKWgM6Kdj84g2Yz= tz5d6-OMv8my6UtAeQ$ for graphic product...

    ATTN...WFO...PHI...AKQ...CTP...LWX...

    LAT...LON 38437874 38957796 39227759 39627729 40067692 40537652
    40807588 40967487 40947461 40857453 40727450 40457456
    39967487 39517514 39147544 38777586 38487620 38317666
    38167729 38107785 38067830 38087863 38137882 38257882
    38437874=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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