• MESO: Mesoscale Discussion 0336

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thu Apr 2 21:26:52 2026
    ACUS11 KWNS 022126
    SWOMCD
    SPC MCD 022126=20
    ILZ000-WIZ000-IAZ000-022300-

    Mesoscale Discussion 0336
    NWS Storm Prediction Center Norman OK
    0426 PM CDT Thu Apr 02 2026

    Areas affected...eastern IA into northwest IL

    Concerning...Tornado Watch 89...

    Valid 022126Z - 022300Z

    The severe weather threat for Tornado Watch 89 continues.

    SUMMARY...An enhanced corridor of tornado potential will exist
    across far eastern Iowa into far northwest Illinois over the next
    couple of hours.

    DISCUSSION...A robust bowing segment has developed near a surface
    low across eastern IA. Ahead of this intense line of convection,
    isolated supercells are noted, with one over Washington County IA
    having recently produced a spotter-confirmed tornado. Additional
    cells are developing along the MS River within mid 60s F dewpoints
    and 0-1 SRH greater than 250 m2/s2. Instability near 1000 J/kg is
    noted in latest mesoanalysis as a warm front continues to lift
    northward into southern WI. This corridor will support an enhanced
    risk of tornado potential over the next couple of hours as storms
    continue to mature and move northeast.

    ..Leitman.. 04/02/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9RAQWymxc0uxejA87YEk2PkT7_aj1NkzeyKzATtDlnD0LskJsY05JoahtsoJEa_-A4VnYexPw= ZsoZWnmiI6SBCnsO0g$ for graphic product...

    ATTN...WFO...LOT...ILX...MKX...DVN...ARX...

    LAT...LON 41699183 42049154 42299126 42409097 42529064 42559019
    42468964 42298947 41908955 41568974 41189006 41049047
    41009124 41279190 41699183=20

    MOST PROBABLE PEAK TORNADO INTENSITY...120-150 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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