• MESO: Mesoscale Discussion 1496

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Jun 30 21:41:53 2024
    ACUS11 KWNS 302141
    SWOMCD
    SPC MCD 302141=20
    NYZ000-NJZ000-PAZ000-DEZ000-302315-

    Mesoscale Discussion 1496
    NWS Storm Prediction Center Norman OK
    0441 PM CDT Sun Jun 30 2024

    Areas affected...portions of southeast Pennsylvania and New Jersey

    Concerning...Severe Thunderstorm Watch 489...

    Valid 302141Z - 302315Z

    The severe weather threat for Severe Thunderstorm Watch 489
    continues.

    SUMMARY...The severe threat continues across Severe Thunderstorm
    Watch 489. Strong to locally severe wind gusts (50-65 mph) remain
    the primary threat, though a couple instances of hail also cannot be
    ruled out. The severe threat should gradually diminish as storms
    move offshore.

    DISCUSSION...Multiple organized thunderstorm clusters and short line
    segments continue eastward across portions of the Mid Atlantic. Some
    of the storms have a history of strong to severe wind gusts, and a
    61 mph wind gust was recently measured in Camden County, NJ. These
    storms are benefiting from an adequately unstable and sheared
    airmass (i.e. 2000-3000 J/kg MLCAPE with 40-50 kts of effective bulk
    shear). Regional VADs show that mainly speed shear is present via
    elongated but nearly straight hodographs. As such, strong to severe
    multicells and short line segments should continue eastward with a
    strong gust/hail threat for at least a few more hours. Later this
    evening, the severe threat should wane when storms move offshore
    into the Atlantic.

    ..Squitieri.. 06/30/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!86wDeGgVDJh8d3X3xLV3NJASSyU6UdrHMiQeIP2Yw-A9ZNJg1vnvY-mkjEm0C3AAABJjpZAVW= esinvQwX4uq1WYSs3g$ for graphic product...

    ATTN...WFO...OKX...PHI...CTP...

    LAT...LON 39927667 40737523 40787423 40687356 40447336 40087339
    39787437 39727547 39927667=20


    =3D =3D =3D
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