• MESO: Mesoscale Discussion 1259

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Monday, June 22, 2026 20:34:52
    ACUS11 KWNS 222034
    SWOMCD
    SPC MCD 222034=20
    MDZ000-VAZ000-DCZ000-222200-

    Mesoscale Discussion 1259
    NWS Storm Prediction Center Norman OK
    0334 PM CDT Mon Jun 22 2026

    Areas affected...portions of northern/central VA

    Concerning...Severe Thunderstorm Watch 375...

    Valid 222034Z - 222200Z

    The severe weather threat for Severe Thunderstorm Watch 375
    continues.

    SUMMARY...Thunderstorm clusters may pose an increasing risk for
    damaging winds across portions of northern and central Virginia over
    the next 1-2 hours.

    DISCUSSION...Thunderstorm clusters moving over the Blue Ridge
    Mountains and into northern/central VA may pose an increasing risk
    for damaging wind gusts the next 1-2 hours. These storms will
    continue tracking east/northeast into a hot airmass with steep 0-3
    km lapse rates around 7.5-8.5 C/km. Sufficient instability
    (1000-1500 J/kg MLCAPE) and 30 kt effective shear magnitudes should
    support at least transient storm organization and some increase in
    intensity in the short term.

    ..Leitman.. 06/22/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6GLgByd6hUr_YQGlKVx7kge1fjK86pxgoouTusOPySXdjLic-oRTfiERuaeW6fN64btJ6oR53= pF4OvccNchtfbkA8P4$ for graphic product...

    ATTN...WFO...AKQ...LWX...RNK...

    LAT...LON 38717862 38977780 39107696 39037667 38677663 38217684
    37907707 37467759 37297868 37327878 37437899 37837913
    38267904 38547890 38717862=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    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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