• MESO: Mesoscale Discussion 0376

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, May 10, 2018 19:35:39
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    ACUS11 KWNS 101935
    SWOMCD
    SPC MCD 101935
    NCZ000-102130-

    Mesoscale Discussion 0376
    NWS Storm Prediction Center Norman OK
    0235 PM CDT Thu May 10 2018

    Areas affected...west central through central North Carolina

    Concerning...Severe potential...Watch possible

    Valid 101935Z - 102130Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Thunderstorms will be capable of producing isolated
    downburst winds and marginally severe hail as they develop east
    through North Carolina this afternoon and early evening. The slight
    risk will be expanded farther south into central North Carolina, and
    trends will continue to be monitored for a possible WW.

    DISCUSSION...Storms continue developing over higher terrain and
    spreading east into western North Carolina with additional storms
    initiating along remnant outflow boundaries. This zone of
    thunderstorm development will continue east during the afternoon.
    Strong diabatic heating of the boundary layer has boosted
    temperatures into the 80s with dewpoints from 55-60F supporting
    1000-1500 J/kg MLCAPE. Winds aloft are slightly weaker than farther
    north in VA, but steep 0-3 km lapse rates and modest buoyancy will
    support a threat for at least isolated strong to damaging wind
    gusts, especially as storms begin to congeal into line segments and
    clusters during next few hours.

    ..Dial/Hart.. 05/10/2018

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

    ATTN...WFO...RAH...RNK...GSP...

    LAT...LON 35578141 36058072 36427941 36407762 35757816 35217914
    35168066 35228137 35578141



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, April 18, 2019 00:50:10
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    ACUS11 KWNS 180050
    SWOMCD
    SPC MCD 180049
    MOZ000-KSZ000-OKZ000-180215-

    Mesoscale Discussion 0376
    NWS Storm Prediction Center Norman OK
    0749 PM CDT Wed Apr 17 2019

    Areas affected...Northern Oklahoma...southeast Kansas...and far
    western MIssouri

    Concerning...Severe Thunderstorm Watch 76...

    Valid 180049Z - 180215Z

    The severe weather threat for Severe Thunderstorm Watch 76
    continues.

    SUMMARY...Continued upscale growth of ongoing convection will lead
    to additional severe weather into the overnight hours. The best
    chance for damaging winds will be along the Kansas/Oklahoma border.

    DISCUSSION...Earlier convection has now grown into a convective
    complex in northwestern Oklahoma extending into south central
    Kansas. The Oklahoma mesonet shows evidence of a developing cold
    pool with upper 50 temperatures across much of northwest Oklahoma.
    This cold pool is expected to surge eastward through the evening and
    will likely produce a bowing area of damaging winds somewhere along
    the Kansas/Oklahoma border. The higher wind damage threat is
    expected to start to organize somewhere near Ponca City and extend
    east northeastward along and just south of the location of the
    front.

    Outside of this area, convection along the front in east central
    Kansas and convection extending southward from the expected bowing
    segment will be capable of producing large hail and damaging winds
    through the evening and into the early overnight. Storms are
    expected to stay mostly north of I-40 in Oklahoma, but additional
    storm development on the southern edge of this line could
    necessitate the addition of a watch for a few more counties south of
    severe thunderstorm watch 76.

    ..Bentley/Hart.. 04/18/2019

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

    ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN...DDC...

    LAT...LON 37459865 36379899 35479907 35929691 36699495 37299446
    38169431 38589425 38859477 37459865



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