• MESO: Mesoscale Discussion 0463

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Apr 16 20:37:28 2024
    ACUS11 KWNS 162037
    SWOMCD
    SPC MCD 162036=20
    IAZ000-MNZ000-NEZ000-SDZ000-162130-

    Mesoscale Discussion 0463
    NWS Storm Prediction Center Norman OK
    0336 PM CDT Tue Apr 16 2024

    Areas affected...Northern Iowa

    Concerning...Tornado Watch 118...

    Valid 162036Z - 162130Z

    The severe weather threat for Tornado Watch 118 continues.

    SUMMARY...The tornado threat within watch 118 is now confined to
    northern Iowa.

    DISCUSSION...As the Pacific front interacted with convection across
    eastern Nebraska around 19Z, a strong outflow boundary pushed well
    ahead of convection which has essentially ended the severe weather
    threat for the western half of watch 118. In addition, this outflow
    boundary has recently collided with the warm front near the
    intersection of MN/IA/SD and thus, expect the storm which moved
    north of the boundary to continue to weaken.=20

    Therefore, the only remaining favorable airmass is northeast of the
    dryline across north-central Iowa. In this region, a few tornadoes
    have been confirmed with the low-topped supercell in Pocahontas
    county at 2030Z. Visible satellite and radar trends show additional
    storms developing southeast of this storm which may also pose a
    tornado threat this afternoon and into the early evening as they
    move north.

    ..Bentley.. 04/16/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4ofCkcOx9-u8EK7PHMVFb84ZAo4PEEd8oJ_ldL97ZGAE7bkuFIjiBbyjr2LedY1S5jFyg2ht2= SAZPFEO522G135BjuM$ for graphic product...

    ATTN...WFO...MPX...DMX...FSD...OAX...

    LAT...LON 41609365 41729530 41839642 42379699 43279660 43529626
    43559523 43429408 42869354 42369339 42089329 41649317
    41609365=20


    =3D =3D =3D
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