• MESO: Mesoscale Discussion 1855

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jul 31 20:04:48 2025
    ACUS11 KWNS 312003
    SWOMCD
    SPC MCD 312002=20
    NJZ000-PAZ000-MDZ000-DEZ000-VAZ000-DCZ000-WVZ000-312200-

    Mesoscale Discussion 1855
    NWS Storm Prediction Center Norman OK
    0302 PM CDT Thu Jul 31 2025

    Areas affected...parts of southern Pennsylvania...New
    Jersey...Delaware...much of Maryland and northern Virginia into the
    eastern West Virginia panhandle

    Concerning...Severe Thunderstorm Watch 562...

    Valid 312002Z - 312200Z

    The severe weather threat for Severe Thunderstorm Watch 562
    continues.

    SUMMARY...Thunderstorm activity may continue to develop and
    intensify across the Greater Washington D.C. into Baltimore
    vicinities through 5-6 PM EDT, accompanied by a risk for potentially
    damaging wind gusts.

    DISCUSSION...The environment across much of the northern Mid
    Atlantic, from Greater Philadelphia into the Greater New York City
    area, is becoming substantially impacted by convective precipitation
    and outflow. In the wake of this activity, it appears that the
    surface front is beginning to advance across and south of the
    southern Pennsylvania state border, into a seasonably moist
    boundary-layer still supporting sizable CAPE across the eastern West
    Virginia panhandle through the Greater Washington D.C./Baltimore
    area, where shear remains at least marginally conducive to organized
    convective development near the southern fringe of the westerlies.

    ..Kerr.. 07/31/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7Prs-exG58IVEXCF_CD363f6qfBkMH8M-LdnJ5IWC20J9HYjmqaWFOayzVLOeQU1VYRea-gZ8= alaI_RyJOMfB0nKxoM$ for graphic product...

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

    LAT...LON 40077754 40027653 40097524 39737418 38427510 37627613
    37787858 39677877 40077754=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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