• MESO: Mesoscale Discussion 0513

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, May 24, 2018 23:06:38
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    ACUS11 KWNS 242306
    SWOMCD
    SPC MCD 242306
    TXZ000-NMZ000-250100-

    Mesoscale Discussion 0513
    NWS Storm Prediction Center Norman OK
    0606 PM CDT Thu May 24 2018

    Areas affected...Big Bend region of Texas and far southeast New
    Mexico

    Concerning...Severe potential...Watch unlikely

    Valid 242306Z - 250100Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Thunderstorms have developed along the higher terrain
    across the Big Bend region of Texas. These thunderstorms will move south-southeast and have the potential to produce large hail and
    strong wind gusts before weakening after sunset. Due to the isolated
    nature of the threat, a watch will not be issued.

    DISCUSSION...A couple of supercell thunderstorms have developed
    along the higher terrain of the Big Bend region of Texas within a
    moist, low-level-upslope regime. Most unstable CAPE values between
    1000-2000 J/kg and deep-layer shear on the order of 40 knots will
    support continued updraft organization along with large hail and
    strong winds. Although initially tied to the higher terrain,
    thunderstorms are now moving off the terrain into the slightly
    deeper moisture. This may enhance the wind and hail threat in the
    short term before an overall weakening trend takes hold with the
    loss of diurnal heating.

    The overall limited spatial and temporal extent of thunderstorm
    coverage will preclude the need for a watch.

    ..Marsh/Grams.. 05/24/2018

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

    ATTN...WFO...MAF...ABQ...EPZ...

    LAT...LON 30260424 31180483 32010500 32580485 32220414 31570356
    30400289 29900344 30260424



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Friday, May 03, 2019 14:19:09
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    ACUS11 KWNS 031419
    SWOMCD
    SPC MCD 031418
    TXZ000-031515-

    Mesoscale Discussion 0513
    NWS Storm Prediction Center Norman OK
    0918 AM CDT Fri May 03 2019

    Areas affected...south Texas

    Concerning...Severe Thunderstorm Watch 124...

    Valid 031418Z - 031515Z

    The severe weather threat for Severe Thunderstorm Watch 124
    continues.

    SUMMARY...Severe thunderstorm complex will continue to move
    east-northeast into the greater Corpus Christi area. Strong
    thunderstorm winds will be possible with this complex.

    DISCUSSION...A remnant mesoscale convective vortex and associated
    bowhead will continue to move east-northeast over the next few
    hours. This thunderstorm complex will shortly move into and through
    the Corpus Christi area, paralleling the coast, before eventually
    moving out to sea. Strong, damaging thunderstorm winds will be the
    main threat.

    Farther south, the trailing edge of the main convective outflow from
    the thunderstorm complex will remain somewhat stationary across
    portions of far south Texas. This boundary may provide a focus for
    additional thunderstorm initiation this afternoon, before eventually
    devolving into the background temperature/moisture field.

    ..Marsh.. 05/03/2019

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

    ATTN...WFO...HGX...CRP...EWX...

    LAT...LON 28969764 29719713 30129692 29839641 29219632 28989660
    28969764



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Friday, May 03, 2019 15:00:44
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    ACUS11 KWNS 031500
    SWOMCD
    SPC MCD 031459 COR
    TXZ000-031515-

    Mesoscale Discussion 0513
    NWS Storm Prediction Center Norman OK
    0959 AM CDT Fri May 03 2019

    Areas affected...south Texas

    Concerning...Severe Thunderstorm Watch 124...

    Valid 031459Z - 031515Z

    CORRECTED FOR ATTENTION AREA

    The severe weather threat for Severe Thunderstorm Watch 124
    continues.

    SUMMARY...Severe thunderstorm complex will continue to move
    east-northeast into the greater Corpus Christi area. Strong
    thunderstorm winds will be possible with this complex.

    DISCUSSION...A remnant mesoscale convective vortex and associated
    bowhead will continue to move east-northeast over the next few
    hours. This thunderstorm complex will shortly move into and through
    the Corpus Christi area, paralleling the coast, before eventually
    moving out to sea. Strong, damaging thunderstorm winds will be the
    main threat.

    Farther south, the trailing edge of the main convective outflow from
    the thunderstorm complex will remain somewhat stationary across
    portions of far south Texas. This boundary may provide a focus for
    additional thunderstorm initiation this afternoon, before eventually
    devolving into the background temperature/moisture field.

    ..Marsh.. 05/03/2019

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

    ATTN...WFO...CRP...BRO...

    LAT...LON 27349880 28069881 28059785 28179774 28129728 27689672
    27299693 26889697 26279678 25939675 25989718 25859740
    26039768 26049814 26259859 26769829 27339852 27349880



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