• MESO: Mesoscale Discussion 1243

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, June 21, 2022 02:14:38
    ACUS11 KWNS 210214
    SWOMCD
    SPC MCD 210213=20
    MNZ000-210415-

    Mesoscale Discussion 1243
    NWS Storm Prediction Center Norman OK
    0913 PM CDT Mon Jun 20 2022

    Areas affected...Northeastern Minnesota

    Concerning...Severe Thunderstorm Watch 396...

    Valid 210213Z - 210415Z

    The severe weather threat for Severe Thunderstorm Watch 396
    continues.

    SUMMARY...Locally damaging winds are possible for a few more hours
    this evening in northeast Minnesota.

    DISCUSSION...A loosely organized cluster of storms will continue
    northeastward into parts of the Minnesota Arrowhead later this
    evening. As the shortwave trough continues to approach, effective
    shear has modestly increased. Temperatures immediately ahead of the
    cluster remain in the low/mid 80s F with upper 60s to low 70s F
    dewpoints. Despite some increase in MLCIN, the threat for locally
    damaging winds will remain possible. However, without a more
    organized cold pool, the overall threat may become more localized
    with time. Other storms may also reach the region late this evening.
    However, with the amount of convective overturning that has occurred
    in northern Minnesota, those later storms would likely be elevated.

    ..Wendt.. 06/21/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5tMv-IvP_ez8VOxxQqUubncuMrHqxHzDGfYXmpz3AZZyfDTtyA_YeGw3khKjlv9Ra1adg9CP7= NdPJD-neuVxsNtCLWo$ for graphic product...

    ATTN...WFO...DLH...FGF...

    LAT...LON 47879461 48419317 48209157 48159105 47669101 46789231
    46219308 46329372 46919439 47629463 47879461=20


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, June 24, 2023 20:39:39
    ACUS11 KWNS 242039
    SWOMCD
    SPC MCD 242039=20
    IAZ000-242245-

    Mesoscale Discussion 1243
    NWS Storm Prediction Center Norman OK
    0339 PM CDT Sat Jun 24 2023

    Areas affected...Parts of central and eastern Iowa

    Concerning...Tornado Watch 370...

    Valid 242039Z - 242245Z

    The severe weather threat for Tornado Watch 370 continues.

    SUMMARY...The threat for large hail, tornadoes, and damaging winds
    will continue this afternoon. The main risk will be in parts of
    southeastern Iowa in the next 1-2 hours.

    DISCUSSION...Winds in southwestern Iowa have veered to
    southwesterly. This trend continues to expand into parts of central
    Iowa as well. Where this has occurred, the tornado threat has
    decreased. Convection continues into northeast Iowa this afternoon.
    However, anvil debris and only partially modified outflow have kept
    buoyancy less than in southern/southeastern Iowa. Large hail and a
    brief tornado remain possible with the strongest storms.

    The primary area of tornado risk for the next 1-2 hours will likely
    exist with storms in south-central/southeastern Iowa. Here,
    buoyancy, storm mode, and low-level shear remain favorable.

    As storms progress farther into eastern Iowa, they will encounter
    decreasing moisture and increasing temperatures. While the tornado
    threat will decrease with eastward extent, large hail and damaging
    winds could still occur.

    ..Wendt.. 06/24/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5SEkPn8kJ7ngedyNAgPm4K0KkfOWr-Fo9gpT5InS6zl9hGI8ItoFdwMdq7SRqvxADzxjjB_KD= 3MH8ChJ4Mqc4Z5SqOQ$ for graphic product...

    ATTN...WFO...DVN...ARX...DMX...

    LAT...LON 40899301 41559347 42879361 43329320 43449221 43239181
    42519169 41399186 41089188 40879243 40899301=20


    =3D =3D =3D
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