• MESO: Mesoscale Discussion 1164

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jul 6 20:23:35 2021
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    ACUS11 KWNS 062023
    SPC MCD 062023=20 MAZ000-NHZ000-RIZ000-CTZ000-NYZ000-VTZ000-NJZ000-PAZ000-DEZ000-MDZ000-06220=

    Mesoscale Discussion 1164
    NWS Storm Prediction Center Norman OK
    0323 PM CDT Tue Jul 06 2021

    Areas affected...RI...MA...CT...NJ...southeast NY...eastern
    PA...northern DE...far northeast MD...southern VT/NH

    Concerning...Severe Thunderstorm Watch 335...336...

    Valid 062023Z - 062200Z

    The severe weather threat for Severe Thunderstorm Watch 335, 336

    SUMMARY...The threat for damaging winds continues across the
    remaining valid portions of Severe Thunderstorm Watches 335 and 336.

    DISCUSSION...Several clusters of severe storms were in progress at
    2015z from western MA southwest into northeast PA, with reports of
    measured severe gusts and wind damage. The downstream environment
    will remain favorable for a continued severe risk with
    moderate/strong MLCAPE and 30-35 kts of westerly flow in the 850-700
    mb layer. Damaging downburst winds remain the primary hazard as
    storms move east/southeast through the early evening hours.

    Farther south across WW 336, latest visible imagery shows increasing
    vertical development of a cumulus field within a weakly confluent
    zone over southeast PA, where strong instability is in place with
    MLCAPE in excess of 2500 J/kg. Isolated thunderstorm development
    has occurred over the past hour, and additional development is
    expected through early evening with multicell clusters posing a risk
    for damaging winds and perhaps hail.

    ..Bunting.. 07/06/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!oxe93x7FOId8S4Yei9JUPaW1OdInrUsyXHxbii0Qz0zsD8XlIvYVIT8Z4V1hD670AYhN4BCp$=
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    LAT...LON 42117592 42857301 42857147 42597081 42077068 41457105
    41017251 40637398 39867416 39137490 39007513 39267607
    39687662 40037688 41047665 42117592=20

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