• MESO: Mesoscale Discussion 0113

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Feb 22 19:23:10 2026
    ACUS11 KWNS 221923
    SWOMCD
    SPC MCD 221922=20
    NJZ000-MDZ000-DEZ000-VAZ000-222145-

    Mesoscale Discussion 0113
    NWS Storm Prediction Center Norman OK
    0122 PM CST Sun Feb 22 2026

    Areas affected...parts of eastern Maryland and Delaware into far
    southern New Jersey

    Concerning...Heavy snow=20

    Valid 221922Z - 222145Z

    SUMMARY...Heavy snow is beginning over parts of the coastal Mid
    Atlantic, and is expected to become more prevalent later this
    afternoon into early evening. 1+ inch/hour snowfall rates are
    possible.

    DISCUSSION...Mesoanalysis trends indicate surface low
    intensification just offshore, with 850-700 mb warm-air/moisture
    advection and frontogenesis increasing along the MD/DE coastline
    areas. Temperatures through the column are largely below freezing,
    as suggested by the IAD 18X observed sounding. While surface
    temperatures are still above freezing over most locales, surface
    observational trends show temperatures plummeting along the Atlantic
    coastline. Both surface observations and traffic camera networks
    depict heavy fall rates of large dendrites, with KDOX
    dual-polarimetric radar also suggesting a transition to mainly heavy
    snow. Strong 700 frontogenesis should continue to promote strong
    convergence and lift within the dendritic growth zone, supporting
    continued heavy snow potential, including 1+ inch/hour rates.

    In the near term, heavy snow should be most common in eastern MD,
    DE, and parts of extreme southern NJ. However, these conditions
    should become more commonplace later this afternoon and evening,
    perhaps with blizzard conditions, as the surface low continues to
    deepen further.

    ..Squitieri.. 02/22/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5LkPWnzH6xde5SHDlW28J82NKIjwTzcX4vWDrvljLM6DIaVj_aY6oSCKXGuMyr-2m-KmR4QXY= 5nv12rK1OcohSkNjAI$ for graphic product...

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

    LAT...LON 37057580 37967639 38497670 38877660 39267628 39527555
    39857465 40037426 40057413 40067407 40027401 39907398
    39667410 39357432 38987462 38417493 37507558 37057580=20


    =3D =3D =3D
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