• MESO: Mesoscale Discussion 1799

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Aug 2 23:01:36 2024
    ACUS11 KWNS 022301
    SWOMCD
    SPC MCD 022301=20
    CTZ000-NYZ000-MAZ000-NJZ000-PAZ000-DEZ000-MDZ000-030000-

    Mesoscale Discussion 1799
    NWS Storm Prediction Center Norman OK
    0601 PM CDT Fri Aug 02 2024

    Areas affected...portions of eastern maryland...Delaware...New
    Jersey and southern New York into Connecticut.

    Concerning...Severe Thunderstorm Watch 590...

    Valid 022301Z - 030000Z

    The severe weather threat for Severe Thunderstorm Watch 590
    continues.

    SUMMARY...The linear cluster of storms across the Mid Atlantic will
    remain capable of damaging gusts before moving offshore this
    evening. Additional storms over eastern MD and CT may also pose some
    risk for damaging winds through the evening.

    DISCUSSION...As of 23 UTC, regional radar imagery showed a line of
    storms stretching from far southern NY into parts of the DelMarVA.
    Periodic wind damage and a few severe gusts have been observed with
    this line of storms over the past couple of hours. Moderate buoyancy
    remains in place ahead of the line over the Atlantic Seaboard. While
    shear remains fairly minimal, a well-developed cold pool (forward
    speed of 20-25 mph) has allowed for continued propagation and
    support of transient strong updrafts. Damaging gusts will remain
    possible with the stronger cells along and ahead of the outflow
    before it moves offshore over the next hour.

    Farther north, the cold pool/storms may remain inland for more of
    the evening over parts of southern NY/Long Island and western CT.
    While temperatures are cooler than farther south, 70s F dewpoints
    and 1000-1500 J/kg of MLCAPE should remain sufficient for
    maintenance of the squall line as it approaches from the southwest.
    Isolated damaging gusts in the 45-60 mph range are possible as the
    northern half of the line and its cold pool approach. Storms should
    gradually weaken as the move farther east this evening and begin to
    encounter increasing nocturnal inhibition.

    Redevelopment along the southwestern flank of the initial line of
    storms over eastern MD may also support some severe risk through the
    evening hours over MD and DE. While confidence in storm organization
    here, moderate buoyancy should continue to support storm development
    with periodic stronger updrafts and water-loaded downdrafts capable
    of damaging near-severe gusts.

    ..Lyons.. 08/02/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_i3vomMaNeAzxDQ6IEP1xghQfzz5JM8LZxmGvVTrNzN61QLim1NLShO7esSK5jfBHlog18y6a= uJDOh3TdYdhzA9CgqE$ for graphic product...

    ATTN...WFO...BOX...OKX...ALY...PHI...AKQ...LWX...

    LAT...LON 39457628 39957498 40497455 41107428 41637425 41907395
    41957362 42027329 42027285 42017263 41837240 41567235
    41367253 40697330 40497371 40017397 39657415 39147471
    38847500 38587516 38467559 38417584 38467623 38637634
    38737638 39067649 39457628=20


    =3D =3D =3D
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