• MESO: Mesoscale Discussion 1612

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Jul 9 15:31:08 2025
    ACUS11 KWNS 091531
    SWOMCD
    SPC MCD 091530=20
    VAZ000-WVZ000-MDZ000-NCZ000-TNZ000-091700-

    Mesoscale Discussion 1612
    NWS Storm Prediction Center Norman OK
    1030 AM CDT Wed Jul 09 2025

    Areas affected...Portions of extreme northeast North Carolina into
    central and eastern West Virginia...western Virginia...and western
    Maryland

    Concerning...Severe potential...Watch possible=20

    Valid 091530Z - 091700Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Storms should increase in coverage and intensity through
    early afternoon. Damaging gusts should be the main threat, though a
    few instances of severe hail are also possible.

    DISCUSSION...Thunderstorms have gradually intensified over the past
    couple of hours, with MRMS mosaic radar imagery showing 40 dBZ
    echoes already approaching 30 kft. Ahead of the storms, temperatures
    have already reached 80 F in spots, with 70 F dewpoints helping to
    boost MLCAPE to around 1000 J/kg amid rapidly eroding MLCINH.
    Furthermore, stronger mid-level southwesterly flow overspreading the
    region is contributing to straight hodographs and up to 35 kts of
    effective bulk shear. With continued boundary layer destabilization,
    multicells and perhaps a transient supercell will be the most likely
    storm modes, capable of damaging gusts and perhaps an instance or
    two of severe hail.

    ..Squitieri/Mosier.. 07/09/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4PiNRY-m1HW_SA_Y4VMg-dJC0z39YmWx54I659sMIRlQLX4UiGEv4h7g2oB3tOKIWxPeTKJ6M= G_M8n19q5AE75n5w20$ for graphic product...

    ATTN...WFO...LWX...RNK...PBZ...RLX...MRX...

    LAT...LON 36728197 38058184 38728166 38958147 39218119 39358086
    39677960 39687898 39677864 39577821 39297804 38827807
    38447827 38097917 37578005 36848058 36218106 36148145
    36248186 36728197=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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