• MESO: Mesoscale Discussion 0380

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, May 10, 2018 23:20:36
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    ACUS11 KWNS 102320
    SWOMCD
    SPC MCD 102320
    NCZ000-VAZ000-SCZ000-110015-

    Mesoscale Discussion 0380
    NWS Storm Prediction Center Norman OK
    0620 PM CDT Thu May 10 2018

    Areas affected...Carolinas/Southeast VA

    Concerning...Severe Thunderstorm Watch 80...

    Valid 102320Z - 110015Z

    The severe weather threat for Severe Thunderstorm Watch 80
    continues.

    SUMMARY...Severe threat will gradually wane over the next few hours.

    DISCUSSION...Loosely organized squall line is progressing
    east-southeast across ww80 at roughly 20kt. Overall trends with this
    activity are down with mostly sub-severe hail and gusty winds along
    the leading edge of convection. With loss of daytime heating it
    appears severe threat will continue to decrease.

    ..Darrow.. 05/10/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...AKQ...MHX...RAH...RNK...CAE...GSP...

    LAT...LON 35538167 36757739 35597738 34398167 35538167



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, April 18, 2019 04:08:39
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    ACUS11 KWNS 180408
    SWOMCD
    SPC MCD 180407
    MOZ000-KSZ000-OKZ000-180530-

    Mesoscale Discussion 0380
    NWS Storm Prediction Center Norman OK
    1107 PM CDT Wed Apr 17 2019

    Areas affected...far southeast KS into southwest MO

    Concerning...Severe potential...Watch likely

    Valid 180407Z - 180530Z

    Probability of Watch Issuance...80 percent

    SUMMARY...Damaging winds will be possible with storms tracking into
    southeast KS and southwest MO over the next several hours. A severe thunderstorm watch will likely be needed soon.

    DISCUSSION...An intense bow echo moving into northeast OK as of 04z
    is tracking toward the east/northeast at around 40-45 kt. The bow
    has produced widespread severe wind gusts near 55-70 mph over the
    last couple of hours. VWPs from INX and SGF show favorable vertical
    wind profiles for maintaining strong to severe organized convection
    and a moist and moderately unstable downstream airmass persists well
    into southwest MO. A rear inflow jet appears to well established
    with the bow echo as well based on radar trends over the last 1-2
    hours. It appears likely that damaging winds associated with this
    bow echo should persist northeastward into southeast KS and adjacent
    parts of southwest MO.

    Additional severe thunderstorms capable of damaging winds are also
    ongoing along a cold front from east-central KS into northeast MO
    just south of the Kansas City metro area. With these two areas of
    concern expected to persist the next several hours, a new watch is
    expected soon across the MCD area.

    ..Leitman/Hart.. 04/18/2019

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...LSX...SGF...EAX...TSA...ICT...

    LAT...LON 37919499 38369458 38729392 38899336 38759290 38319265
    37709286 37239306 36919353 36789405 36879454 37009486
    37339510 37919499



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