• MESO: Mesoscale Discussion 0404

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Apr 21 18:57:17 2021
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    ACUS11 KWNS 211857
    SPC MCD 211856=20

    Mesoscale Discussion 0404
    NWS Storm Prediction Center Norman OK
    0156 PM CDT Wed Apr 21 2021

    Areas affected...CT...Most of MA...Southern NH

    Concerning...Severe Thunderstorm Watch 97...

    Valid 211856Z - 212030Z

    The severe weather threat for Severe Thunderstorm Watch 97

    SUMMARY...Threat for damaging wind gusts continues over southern New

    DISCUSSION...Low-topped convective line continues to move eastward/northeastward at 40-45 kt into southern New England. Gusts
    around 40-45 kt have been reported with this line thus far.
    Downstream areas of western/central MA and CT are characterized by
    temperatures in the mid 60s and steep low-level lapse rates (i.e. 7
    to 8 deg C per km from 0-3 km). As such, the expectation is for
    gusts of similar strength (i.e. 40 to 50 kt) to continue as the line
    moves across western/central MA and CT over the next hour or so.

    Some potential exists for the deep convection along the front to
    reach into far southern New Hampshire, with an attendant threat for
    a few damaging wind gusts.

    ..Mosier.. 04/21/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!syXRnn0AothDbeDBDqldblVzx3QMY_4LYsYM0szFkhoxmcVKZl7OBI9GTA5EkP9PQyYtFITa$=
    for graphic product...


    LAT...LON 41737357 42867250 43127063 41407181 40797240 40617364

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