• MESO: Mesoscale Discussion 1585

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Jul 6 23:54:49 2025
    ACUS11 KWNS 062354
    SWOMCD
    SPC MCD 062354=20
    COZ000-070100-

    Mesoscale Discussion 1585
    NWS Storm Prediction Center Norman OK
    0654 PM CDT Sun Jul 06 2025

    Areas affected...Parts of east-central Colorado

    Concerning...Severe Thunderstorm Watch 489...

    Valid 062354Z - 070100Z

    The severe weather threat for Severe Thunderstorm Watch 489
    continues.

    SUMMARY...Large hail and severe wind gusts remain possible along and
    east of the I-35 corridor in Colorado -- within Severe Thunderstorm
    Watch 489. A local southward extension of the watch may be
    warranted.

    DISCUSSION...A couple organized clusters/supercells are tracking
    slowly southeastward along and east of the I-35 corridor in CO, with
    a recent report of 2-inch hail. VWP and mesoanalysis data show a
    long/straight hodograph (around 40 kt of effective shear), which
    combined with steep deep-layer lapse rates, should support the
    maintenance of these storms with southeastward extent. Large hail
    and severe wind gusts are the primary concerns. It is possible that
    the southern supercell tracks south-southeastward out of Severe
    Thunderstorm Watch 489, and a local extension of the watch may be
    warranted here.

    ..Weinman.. 07/06/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9_yzITB2Qmog-8iPVO3_-jFDVhvmANKCnVWjClQE2Xd4l5AzvTpDen8A623hDhaXCHQ1itdzR= A6zklKSlL9cmFDQ2XY$ for graphic product...

    ATTN...WFO...GLD...PUB...BOU...

    LAT...LON 38460497 38860498 39220467 39490406 39490359 39300316
    38920299 38520308 38190360 38110419 38180468 38460497=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jul 7 00:00:49 2025
    ACUS11 KWNS 070000
    SWOMCD
    SPC MCD 070000 COR
    COZ000-070100-

    Mesoscale Discussion 1585
    NWS Storm Prediction Center Norman OK
    0700 PM CDT Sun Jul 06 2025

    Areas affected...Parts of east-central Colorado

    Concerning...Severe Thunderstorm Watch 489...

    Valid 070000Z - 070100Z

    CORRECTED FOR GEOGRAPHIC DESCRIPTION

    The severe weather threat for Severe Thunderstorm Watch 489
    continues.

    SUMMARY...Large hail and severe wind gusts remain possible along and
    east of the I-25 corridor in Colorado -- within Severe Thunderstorm
    Watch 489. A local southward extension of the watch may be
    warranted.

    DISCUSSION...A couple organized clusters/supercells are tracking
    slowly southeastward along and east of the I-25 corridor in CO, with
    a recent report of 2-inch hail. VWP and mesoanalysis data show a
    long/straight hodograph (around 40 kt of effective shear), which
    combined with steep deep-layer lapse rates, should support the
    maintenance of these storms with southeastward extent. Large hail
    and severe wind gusts are the primary concerns. It is possible that
    the southern supercell tracks south-southeastward out of Severe
    Thunderstorm Watch 489, and a local extension of the watch may be
    warranted here.

    ..Weinman.. 07/07/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!92HYbf8xuItJBr1C2Pub3uKh8TAcRZijhdIGQI1r0w7euzo8duDkrUCxLBocqxtlCvffdi2sJ= 2griPwCcSml7m4yvVA$ for graphic product...

    ATTN...WFO...GLD...PUB...BOU...

    LAT...LON 38460497 38860498 39220467 39490406 39490359 39300316
    38920299 38520308 38190360 38110419 38180468 38460497=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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