• MESO: Mesoscale Discussion 0374

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Apr 3 21:31:52 2024
    ACUS11 KWNS 032131
    SWOMCD
    SPC MCD 032131=20
    IDZ000-ORZ000-032300-

    Mesoscale Discussion 0374
    NWS Storm Prediction Center Norman OK
    0431 PM CDT Wed Apr 03 2024

    Areas affected...portions of far eastern Oregon into western and
    central Idaho

    Concerning...Severe potential...Watch unlikely=20

    Valid 032131Z - 032300Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated strong wind gusts and instances of hail may
    accompany the stronger storms this afternoon into early evening. The
    severe threat is expected to be sparse and localized.

    DISCUSSION...Multiple pulse cellular storms and multicells have
    recently developed to the east of a cloud deck in the past couple of
    hours over far eastern OR into southwestern ID. Here, diurnal
    heating has encouraged surface temperatures to warm into the mid 60s
    F amid mid 30s-40s F dewpoints, that in tandem with steep lapse
    rates, has boosted SBCAPE to 500-1000 J/kg. RAP forecast soundings
    and regional VADs depict curved, elongated hodographs, indicating
    the presence of strong deep-layer shear, with 21Z mesoanalysis
    depicting over 40 kts of effective bulk shear. Forecast soundings
    show thin CAPE profiles atop a dry, well-mixed boundary layer. As
    such, brief and localized instances of strong wind gusts and perhaps
    some hail may occur with the stronger multicells or any transient
    supercells that can develop. Nonetheless, the severe threat is
    expected to remain isolated.

    ..Squitieri/Guyer.. 04/03/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8jL3TJaY0GTEfz6NGXBy8U52ECN2HhqEXh2PB8N82GDlTdQ-2t41rP3pZPQj5gceYthjLLOVQ= wdFDMev56A7zUm0jKg$ for graphic product...

    ATTN...WFO...PIH...MSO...BOI...

    LAT...LON 42631780 43031797 43501784 44021731 44651652 45021469
    44831408 44551392 44271389 43741444 43491492 43161597
    42811705 42631780=20


    =3D =3D =3D
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