• MESO: Mesoscale Discussion 0487

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, May 22, 2018 02:11:56
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    ACUS11 KWNS 220211
    SWOMCD
    SPC MCD 220211
    NMZ000-TXZ000-220315-

    Mesoscale Discussion 0487
    NWS Storm Prediction Center Norman OK
    0911 PM CDT Mon May 21 2018

    Areas affected...Central/eastern New Mexico and far west Texas

    Concerning...Severe Thunderstorm Watch 114...

    Valid 220211Z - 220315Z

    The severe weather threat for Severe Thunderstorm Watch 114
    continues.

    SUMMARY...The severe threat continues across WW 114.

    DISCUSSION...Scattered strong to severe thunderstorms continue to
    migrate east/northeastward at around 20 knots across the WW at this
    time. Reports of 1-1.75 inch hail stones and 60-70 mph wind gusts
    have been reported on occasion with the strongest activity. These
    trends should continue for at least another hour or two given weak
    to moderate buoyancy in the pre-convective airmass and 40-50 knots
    of deep shear supporting continued organization.

    With time, storms should exhibit a weakening trend as they progress
    toward eastern portions of the WW due to nocturnal boundary layer
    cooling and weakening buoyancy. Models (particularly the HRRR)
    continue to insist on upscale growth of the ongoing clusters of
    activity, and this process has begun especially with storms across
    far west Texas into southern Otero County NM. The overall threat of
    1"+ hail and wind gusts should also gradually lessen with time in
    tandem with the stabilizing boundary layer.

    ..Cook.. 05/22/2018

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

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

    LAT...LON 34920634 35240548 35750457 35640395 34950364 34270386
    33470412 31250476 30720483 30640516 30920583 31360627
    31730654 32570664 33900652 34920634



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, April 30, 2019 23:47:52
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 302347
    SWOMCD
    SPC MCD 302347
    OKZ000-TXZ000-010145-

    Mesoscale Discussion 0487
    NWS Storm Prediction Center Norman OK
    0647 PM CDT Tue Apr 30 2019

    Areas affected...West TX

    Concerning...Severe Thunderstorm Watch 114...

    Valid 302347Z - 010145Z

    The severe weather threat for Severe Thunderstorm Watch 114
    continues.

    SUMMARY...Isolated severe thunderstorms will continue across West TX
    this evening.

    DISCUSSION...Isolated convection that developed along the dryline
    across West TX has progressed roughly 100mi east of the boundary.
    Strongest thunderstorms have shifted into Haskell County...just
    south of a synoptic front that is draped from Tillman County
    OK-north of LBB. Lone supercell farther south over Crockett County
    is drifting slowly east-southeast and may begin to weaken over the
    next few hours. Current thinking is more organized convection may
    concentrate along the synoptic front as it stalls over northwest TX.
    Hail remains the primary threat.

    ..Darrow.. 04/30/2019

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

    ATTN...WFO...OUN...SJT...LUB...MAF...

    LAT...LON 30460285 34470185 34479904 30480017 30460285



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