• MESO: Mesoscale Discussion 0368

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thursday, April 09, 2026 19:04:45
    ACUS11 KWNS 091904
    SWOMCD
    SPC MCD 091904=20
    CAZ000-ORZ000-092100-

    Mesoscale Discussion 0368
    NWS Storm Prediction Center Norman OK
    0204 PM CDT Thu Apr 09 2026

    Areas affected...Portions of northern California into Southwest
    Oregon

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

    Valid 091904Z - 092100Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated severe gusts and small to marginally severe hail
    will be possible this afternoon. Limited storm coverage and
    intensity will likely preclude a watch.

    DISCUSSION...As an upper low approaches the northern California
    coast, an increase of mid-level ascent has led to deepening
    convection within the terrain. Deep-layer southerly flow has
    maintained moisture in the region and dewpoints have held in the
    low/mid 50s F in some areas. Where the greatest heating can occur
    (i.e., temperatures reaching into the low/mid 60s), MLCAPE of
    500-750 J/kg can be expected. A few stronger cores have already
    pulsed up and down in intensity. The expectation is for additional
    storms, a couple strong to marginally severe, to form in the next
    several hours. Weaker effective shear (25-30 kts) will likely limit
    the overall severity of storms, however.

    ..Wendt/Gleason.. 04/09/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7B80ydQr6C50u51eAjg0Xq3DbMQ8WqCPc1CmlDmg_ke7HYzoR0ncdb8_WibysTsgdJ6Ub-FWY= n9klQ-75lAFlQxy_vI$ for graphic product...

    ATTN...WFO...MFR...STO...PQR...EKA...

    LAT...LON 39652334 41852430 43252389 43652296 43602242 43272223
    42862246 42302297 41412284 40892274 40202270 39812285
    39652334=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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