• MESO: Mesoscale Discussion 1559

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Aug 19 14:50:27 2021
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    ACUS11 KWNS 191450
    SWOMCD
    SPC MCD 191449=20
    MAZ000-RIZ000-CTZ000-191615-

    Mesoscale Discussion 1559
    NWS Storm Prediction Center Norman OK
    0949 AM CDT Thu Aug 19 2021

    Areas affected...Eastern MA...RI...far northeastern CT

    Concerning...Severe potential...Watch unlikely=20

    Valid 191449Z - 191615Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Weakly rotating storms capable of locally damaging wind
    and/or a brief tornado remain possible this morning.

    DISCUSSION...At 1445Z, a cluster of convection (associated with the
    midlevel remnant of T.C. Fred) is approaching eastern MA and
    northern RI. Occasional rotation has noted with convection on the
    western edge of the cluster, and that will likely continue through
    the morning, given the favorable wind profile noted in the KBOX VWP.
    Widespread cloudiness and precipitation should tend to limit the
    severe threat, but the stronger cells will be capable of locally
    damaging wind and a brief tornado, especially as they interact with
    a weak baroclinic zone noted across eastern MA.=20

    The threat is expected to begin diminishing this afternoon as
    midlevel drying overspreads the region. Due to the relatively
    limited duration and magnitude of the threat, watch issuance is
    unlikely.

    ..Dean/Dial.. 08/19/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!utbYMw72bvDFtlxO7Z4mS0ZBtxRMRpWJYLHi5HdqOdb0yleIEGyL6a5d7j5Ni65kg81wW3_X$=
    for graphic product...

    ATTN...WFO...BOX...

    LAT...LON 42457183 42627127 42637074 42387070 42127070 41587087
    41637152 41707170 41957183 42247184 42457183=20



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