• MESO: Mesoscale Discussion 1248

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, June 11, 2025 04:26:12
    ACUS11 KWNS 110425
    SWOMCD
    SPC MCD 110425=20
    TXZ000-110530-

    Mesoscale Discussion 1248
    NWS Storm Prediction Center Norman OK
    1125 PM CDT Tue Jun 10 2025

    Areas affected...parts of Deep South Texas

    Concerning...Severe Thunderstorm Watch 407...

    Valid 110425Z - 110530Z

    The severe weather threat for Severe Thunderstorm Watch 407
    continues.

    SUMMARY...The risk for severe wind gusts may across and southwest
    through south of the Greater San Antonio vicinity through Midnight-1
    AM CDT.

    DISCUSSION...Cold pool propagation into the I-35 corridor near and
    south of San Antonio has been at rather modest speeds of 20 kt or
    so, and peak 3-second gusts along the gust front have recently been
    measured around 40 kts. However, the most vigorous convection only
    slightly trails the gust front, and is becoming better organized,
    with a meso-beta scale cyclonic circulation now forming to the west
    of San Antonio. This may be accompanied by strengthening westerly
    rear inflow and downdrafts, aided by heavy precipitation loading,
    near and to the southwest through south of Greater San Antonio
    through 05-06Z.

    ..Kerr.. 06/11/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7wOEAHB0e7BKcBRE9KUY8alztAC7Ds5uoVGsVsZXIposLsb_nIRtfpZRqDkzhw0Os2vW4VFfG= DquSZ-_xELSwq8gW4Y$ for graphic product...

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

    LAT...LON 27820057 28659949 29999892 29929796 28079827 27130008
    27120082 27820057=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, June 11, 2025 04:36:43
    ACUS11 KWNS 110436
    SWOMCD
    SPC MCD 110436 COR
    TXZ000-110530-

    Mesoscale Discussion 1248
    NWS Storm Prediction Center Norman OK
    1136 PM CDT Tue Jun 10 2025

    Areas affected...parts of Deep South Texas

    Concerning...Severe Thunderstorm Watch 407...

    Valid 110436Z - 110530Z

    CORRECTED TEXT

    The severe weather threat for Severe Thunderstorm Watch 407
    continues.

    SUMMARY...The risk for severe wind gusts may across and southwest
    through south of the Greater San Antonio vicinity through Midnight-1
    AM CDT.

    DISCUSSION...Cold pool propagation into the I-35 corridor near and
    south of San Antonio has been at rather modest speeds of 20 kt or
    so, and peak 3-second gusts along the gust front have recently been
    measured around 40 kts. However, stronger 2-hourly surface pressure
    rises in excess of 4 mb have become evident in the 04Z surface
    observations at Uvalde and Junction. Additionally, the most
    vigorous convection only slightly trails the gust front, and is
    becoming better organized, with a meso-beta scale cyclonic
    circulation now forming to the west of San Antonio. This may be
    accompanied by strengthening westerly rear inflow and downdrafts,
    aided by heavy precipitation loading, near and to the southwest
    through south of Greater San Antonio through 05-06Z.

    ..Kerr.. 06/11/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_jBJAXS_5ET07soNLOsbl9KBn82A02zMeks0gl-vi255wL-WlQuSYF05FKmP4Is1_NlO74Qr-= DrsHXlwhTK3zF5ahRo$ for graphic product...

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

    LAT...LON 27820057 28659949 29999892 29929796 28079827 27130008
    27120082 27820057=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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