• MESO: Mesoscale Discussion 1587

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jul 7 04:29:50 2025
    ACUS11 KWNS 070429
    SWOMCD
    SPC MCD 070429=20
    SDZ000-WYZ000-070630-

    Mesoscale Discussion 1587
    NWS Storm Prediction Center Norman OK
    1129 PM CDT Sun Jul 06 2025

    Areas affected...Western Kansas

    Concerning...Severe Thunderstorm Watch 491...

    Valid 070429Z - 070630Z

    The severe weather threat for Severe Thunderstorm Watch 491
    continues.

    SUMMARY...Strong-severe thunderstorms will propagate southeast
    across ww491. Damaging winds are the primary concern.

    DISCUSSION...A very weak short-wave trough appears to have crested
    the ridge and is digging southeast across the central High Plains
    late this evening. Scattered robust convection has gradually
    coalesced into a linear MCS which currently extends from
    northwestern KS into extreme eastern CO. A narrow axis of modest
    instability is noted across southwest KS, along and north of a
    boundary that stretches across the OK Panhandle into far southeast
    CO. This boundary is being reinforced a bit by scattered convection
    along the KS/OK border into northwest OK. Net result will likely be
    for the ongoing MCS to continue tracking southeast, aided in part by southeasterly low-level inflow. 56kt gust was reported at GLD with
    the squall line, and this type of wind may continue to be reported
    as the MCS propagates toward southwestern KS over the next several
    hours.

    ..Darrow.. 07/07/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7yQ6iZekXcijYQ136zQWP4KrZ4N0RRkpFS6hwF3jOHNR5nnaZOyAwDUeA5M_e17XLz3Ld5Xqd= fghVWevJpeC0OG76Xw$ for graphic product...

    ATTN...WFO...UNR...

    LAT...LON 44260440 44390275 44840139 43240152 43580439 44260440=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 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 04:42:21 2025
    ACUS11 KWNS 070442
    SWOMCD
    SPC MCD 070441 COR
    KSZ000-070630-

    Mesoscale Discussion 1587
    NWS Storm Prediction Center Norman OK
    1141 PM CDT Sun Jul 06 2025

    Areas affected...Western Kansas

    Concerning...Severe Thunderstorm Watch 491...

    Valid 070441Z - 070630Z

    CORRECTED FOR AREA AFFECTED

    The severe weather threat for Severe Thunderstorm Watch 491
    continues.

    SUMMARY...Strong-severe thunderstorms will propagate southeast
    across ww491. Damaging winds are the primary concern.

    DISCUSSION...A very weak short-wave trough appears to have crested
    the ridge and is digging southeast across the central High Plains
    late this evening. Scattered robust convection has gradually
    coalesced into a linear MCS which currently extends from
    northwestern KS into extreme eastern CO. A narrow axis of modest
    instability is noted across southwest KS, along and north of a
    boundary that stretches across the OK Panhandle into far southeast
    CO. This boundary is being reinforced a bit by scattered convection
    along the KS/OK border into northwest OK. Net result will likely be
    for the ongoing MCS to continue tracking southeast, aided in part by southeasterly low-level inflow. 56kt gust was reported at GLD with
    the squall line, and this type of wind may continue to be reported
    as the MCS propagates toward southwestern KS over the next several
    hours.

    ..Darrow.. 07/07/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4whLrUfy_-Fr8WpOj7qpoQTKAu68NuTaXwu5VnkY3Ma9d7gyWH4oQXXBS36I6KAP_aezAIDXm= svMHFAI_sDXYuYbwaQ$ for graphic product...

    ATTN...WFO...DDC...GLD...

    LAT...LON 37950197 39680197 38930029 37210029 37950197=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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