• MESO: Mesoscale Discussion 1408

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Jun 22 22:28:30 2025
    ACUS11 KWNS 222226
    SWOMCD
    SPC MCD 222226=20
    NEZ000-COZ000-WYZ000-230030-

    Mesoscale Discussion 1408
    NWS Storm Prediction Center Norman OK
    0526 PM CDT Sun Jun 22 2025

    Areas affected...Nebraska Panhandle

    Concerning...Severe Thunderstorm Watch 452...

    Valid 222226Z - 230030Z

    The severe weather threat for Severe Thunderstorm Watch 452
    continues.

    SUMMARY...A few discrete supercells continue across the western
    Nebraska Panhandle, posing a risk of large hail and damaging winds.

    DISCUSSION...Latest radar and satellite imagery shows two discrete
    supercells over Scotts Bluff and Banner counties NE. These storms
    have formed as lift associated with an approaching shortwave trough
    interacted with deep easterly/upslope flow. Full sunshine ahead of
    the storms, coupled with dewpoints in the upper 50s and 60s will
    help to maintain the activity for several more hours. Forecast
    soundings show steep low and mid-level lapse rates and ample CAPE,
    along with favorable deep-layer shear for maintaining supercell or
    small bowing structures. Damaging winds and large hail will remain
    possible.

    Recent HRRR runs are suggesting some potential for southward
    development of this activity in far northern CO, where a similar
    boundary-layer regime is present. If this occurs, these storms
    would also pose a severe hail/wind risk. However, the area affected
    would likely be too small to warrant an additional watch.

    ..Hart.. 06/22/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6iuszSqR2AcE59qT-L2y1Hg_xZC5oPpA_Ba8g9krjplV62I__qXewh0gOGAv6xTHj02h6i8EE= lqRIQseXIy0E5s0bsw$ for graphic product...

    ATTN...WFO...LBF...BOU...CYS...

    LAT...LON 42220369 42530178 42040132 41390193 40710272 40540399
    41390427 42220369=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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