• MESO: Mesoscale Discussion 1923

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Aug 16 22:32:05 2024
    ACUS11 KWNS 162231
    SWOMCD
    SPC MCD 162231=20
    ILZ000-WIZ000-IAZ000-170030-

    Mesoscale Discussion 1923
    NWS Storm Prediction Center Norman OK
    0531 PM CDT Fri Aug 16 2024

    Areas affected...southeastern Wisconsin and northern Illinois

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

    Valid 162231Z - 170030Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Gusty winds locally -- with potential for a gust or two
    near severe levels -- can be expected over the next couple of hours
    across a portion of far southeastern Wisconsin and into northern
    Illinois. WW issuance is not expected, due to anticipated
    marginal/isolated nature of the risk.

    DISCUSSION...Latest radar loop shows that a semi-organized band of
    storms has developed over northwestern Illinois, ahead of a subtle, eastward-moving mid-level vort max embedded within the cyclonic flow surrounding the western Lake Superior upper low. A narrow axis of
    1500 J/kg mixed-layer CAPE is indicated just ahead of the band of
    storms, which suggests continuation -- and possible/slight
    strengthening over the next 1 to 2 hours.=20=20

    The latest VWP from the KLOT (Chicago, IL) WSR-88D shows flow weakly
    veering from west-southwesterly to west-northwesterly with height,
    and increasing to around 35 kt at mid levels. This should allow
    storms to progress into the Chicago -- and possibly Milwaukee --
    vicinity, accompanied by gusty winds. While a couple of gusts could
    near or reach severe levels, risk should remain sparse and marginal,
    and thus insufficient to warrant WW consideration.

    ..Goss/Edwards.. 08/16/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9rLlRIMBnAqxpmm2qOYDKLfF6AVB-PaYBEGRQLcb3s6KIFY18T1VsWyKR5sPJXp-BpzSDbywl= cLuN5H1xOU6MZekc24$ for graphic product...

    ATTN...WFO...LOT...MKX...DVN...

    LAT...LON 41899033 42458943 43088879 42888810 41938760 41438790
    41418935 41899033=20


    =3D =3D =3D
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