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  • MESO: Mesoscale Discussion 1672

    From COD Weather Processor @1:2320/107 to All on Mon Jul 20 16:37:04 2026
    ACUS11 KWNS 201636
    SWOMCD
    SPC MCD 201636
    ILZ000-IAZ000-MOZ000-201830-

    Mesoscale Discussion 1672
    NWS Storm Prediction Center Norman OK
    1136 AM CDT Mon Jul 20 2026

    Areas affected...Southeast Iowas into west-central Illinois and far
    northeast Missouri

    Concerning...Severe potential...Watch possible

    Valid 201636Z - 201830Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Some increase in strong to severe wind gusts is possible
    with a compact MCS in east-central Iowa. A watch is possible
    depending on convective trends over the next 1-2 hours.

    DISCUSSION...Modest destabilization continues ahead of a compact MCS
    in east-central Iowa. Temperatures to the south/southwest of this
    cluster have risen into the low to upper 80s F. The motion of the
    system is generally southeastward which would tend to move it into
    less unstable air in Illinois. Activity on the western flank of the
    MCS and its trailing outflow will likely be the strongest given the
    stronger heating and steeper mid-level lapse rates. Some potential
    for strong to severe wind gusts will be present. Recent measured
    wind gusts at Cedar Rapids and Iowa City were 35 and 36 kt,
    respectively, with a mesonet site also measuring 55 mph in Jones
    County. A watch is possible depending on convective trends over the
    next hour or two.

    ..Wendt/Thompson.. 07/20/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!_M2LG8h07fz_aYl53rM4TyVXR5bwAwV2u9qcl5qCuvxgDrobmPSP7B39Bkta4aHGIY1nVwaWEBcWJO7fnBfHVdpjXYA$ for graphic product...

    ATTN...WFO...ILX...LSX...DVN...DMX...

    LAT...LON 40259197 41299253 41789250 41919243 41859208 41799169
    41739122 41809050 41319033 40619024 40219034 40049106
    40059137 40259197

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)