• MESO: Mesoscale Discussion 1414

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jul 4 00:29:51 2023
    ACUS11 KWNS 040029
    SWOMCD
    SPC MCD 040029=20
    NJZ000-PAZ000-MDZ000-DEZ000-VAZ000-DCZ000-040200-

    Mesoscale Discussion 1414
    NWS Storm Prediction Center Norman OK
    0729 PM CDT Mon Jul 03 2023

    Areas affected...Delmarva/New Jersey/Virginia

    Concerning...Severe Thunderstorm Watch 439...440...

    Valid 040029Z - 040200Z

    The severe weather threat for Severe Thunderstorm Watch 439, 440
    continues.

    SUMMARY...The potential for damaging winds continues mainly across
    the Delmarva vicinity into New Jersey, as well as central Virginia,
    but the overall severe potential should gradually diminish into late
    evening.

    DISCUSSION...Multiple corridors of strong/severe thunderstorms are
    ongoing as 0020z/820pm EDT across the Delmarva into far southeast
    Pennsylvania toward southwest New Jersey, but is highlighted by an
    HP supercell/bowing structure across across southern Delaware where
    a heightened potential for damaging winds exists in the short term
    before moving offshore. A severe risk, mainly damaging winds, may
    continue with these clusters across far northeast Maryland/far
    southeast Pennsylvania moving into northern Delaware and New Jersey.
    Farther south, a recent uptick of convection has occurred near/east
    of the Blue Ridge in south-central Virginia. While some severe risk
    will exist with this cluster over the next hour or so, it should
    eventually encounter previously rain-cooled air. Current thinking is
    that ongoing Watches across the region will probably be able to
    expire at (or before) scheduled 02z expiration.

    ..Guyer.. 07/04/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4zZLVk3D3-cqQXOC1QtpAf5cAGZWBFdRFh6MvSZNir0hLFyy-BBAkZ5LeVahg5dJ9uIl-LuH7= n9tTQowNFirmGjTpFo$ for graphic product...

    ATTN...WFO...PHI...AKQ...LWX...RNK...

    LAT...LON 40227527 40017404 39407386 38417494 37107757 37377940
    38977694 40227527=20


    =3D =3D =3D
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