• MESO: Mesoscale Discussion 1133

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 17 22:30:11 2023
    ACUS11 KWNS 172230
    SWOMCD
    SPC MCD 172229=20
    MOZ000-KSZ000-180030-

    Mesoscale Discussion 1133
    NWS Storm Prediction Center Norman OK
    0529 PM CDT Sat Jun 17 2023

    Areas affected...portions of northern Missouri

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

    Valid 172229Z - 180030Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated strong to severe storms may persists for a few
    hours this evening with a risk for hail and damaging winds. Low
    storm coverage and uncertainty on longevity suggest a watch is
    unlikely.

    DISCUSSION...As of 2225 UTC, regional radar analysis showed isolated thunderstorms have intensified over portions of northern MO in the
    last hour. To the south of a remnant MCV over western IA, forcing
    for ascent is rather nebulous over much of the region, and storms
    are primarily being driven by moderate buoyancy (2000-2500 J/kg of
    MLCAPE) and afternoon heating. Area VADs show weak shear and storms
    will likely remain multicellular given the lack of stronger flow
    aloft. There remains some uncertainty on the longevity of any severe
    risk given the lack of broader forcing. Regardless, recent reports
    of golf ball hail and the presence of strong updrafts in moderate
    buoyancy suggests the risk for isolated hail and damaging outflow
    winds may persist for a few hours this evening before storms weaken
    after sunset. Convective trends will be monitored, but a weather
    watch is unlikely.

    ..Lyons/Grams.. 06/17/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5E9bXsd2HnGTzymLgOezT5J5yuD16GdmqOZskLaAJQWtnDMMpVSDdX-fofEfXt7jRbjCQgwjQ= l9YGbrHYyEYL2P9lfA$ for graphic product...

    ATTN...WFO...EAX...

    LAT...LON 40409291 40099283 39589318 39389352 39199381 39169432
    39609491 40229536 40509542 40549495 40569408 40499316
    40409291=20


    =3D =3D =3D
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