• MESO: Mesoscale Discussion 1560

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jul 15 02:30:17 2023
    ACUS11 KWNS 150230
    SWOMCD
    SPC MCD 150229=20
    MIZ000-INZ000-150400-

    Mesoscale Discussion 1560
    NWS Storm Prediction Center Norman OK
    0929 PM CDT Fri Jul 14 2023

    Areas affected...Northern IN into southwest Lower MI

    Concerning...Severe potential...Watch possible=20

    Valid 150229Z - 150400Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Some damaging-wind threat may spread eastward late this
    evening. Watch issuance is possible.

    DISCUSSION...A small bowing segment has recently intensified across
    northeast IL, with a 53 kt gust recently observed in Aurora, IL.
    Some uptick in storm intensity has also been noted into central IL.
    The downstream environment into northern IN and southwest lower MI
    is not as unstable, but some low-level moistening from the
    southwest, in conjunction with continued support from a midlevel
    shortwave trough moving across the Great Lakes, may help to sustain
    these storms as they move eastward late this evening.=20

    While nocturnal cooling has commenced, a residual well-mixed
    boundary layer resulting from earlier diurnal heating/mixing may
    continue to support a threat of locally damaging gusts as storms
    spread across northern IN and Lake Michigan into southwest lower MI.
    Depending on trends over the next 30-60 minutes, watch issuance is
    possible.

    ..Dean/Guyer.. 07/15/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7Bpuq4kNXxVSgtcC43MpXHKyhyDzafUm2dE2aqk6E6kxnJtYLVovvl28K4LNRoMruc5zAikz8= nfO1wB-cxs7oWGrzSk$ for graphic product...

    ATTN...WFO...IWX...GRR...IND...LOT...

    LAT...LON 43098702 43048505 41868504 40978551 40658603 40678672
    40758723 41128730 42308722 43098702=20


    =3D =3D =3D
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