• MESO: Mesoscale Discussion 0810

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, May 18, 2022 03:25:18
    ACUS11 KWNS 180325
    SWOMCD
    SPC MCD 180324=20
    KSZ000-180530-

    Mesoscale Discussion 0810
    NWS Storm Prediction Center Norman OK
    1024 PM CDT Tue May 17 2022

    Areas affected...Southern Half of Kansas

    Concerning...Severe Thunderstorm Watch 236...

    Valid 180324Z - 180530Z

    The severe weather threat for Severe Thunderstorm Watch 236
    continues.

    SUMMARY...A wind damage and isolated large hail threat will continue
    to move southward across the southern half of Kansas late this
    evening. An isolated tornado will be possible, and some wind gusts
    will likely exceed 65 knots.

    DISCUSSION...High-resolution radar imagery from Topeka and Wichita
    show a well-developed linear MCS draped east-to-west across central
    Kansas. The MCS is moving southeastward into a strongly unstable
    airmass, where MLCAPE is estimated by the RAP in the 2500 to 3500
    J/kg range. This combined with an increasing 40 to 50 knot low-level
    jet will provide strong support for continued development within the
    MCS. At 0320Z, two bowing line segments where ongoing. One was
    located in northeast Kansas to the west of Kansas City, and a second
    was located in north-central Kansas near Salina. A swath of wind
    damage will be likely with each of these line segments. The faster
    moving bows will be capable of producing very strong wind gusts,
    with some gusts of greater than 65 knots likely. The severe threat
    should continue to be maintained as the linear MCS moves across
    southern Kansas late this evening into the early overnight period.

    ..Broyles.. 05/18/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-FeyeC1beWNUjoe4NWjt7oDjjqLCwNZFx9VeqKAvaKec84bCTmgHs7Sny1QgOMXMTI__tM9a9= STBSfYj8Dj8w_9dTeE$ for graphic product...

    ATTN...WFO...SGF...EAX...TOP...ICT...DDC...

    LAT...LON 37309504 37069623 37219979 37690031 38290014 38579963
    38689774 38609605 38319498 37309504=20


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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, May 17, 2023 19:28:33
    ACUS11 KWNS 171928
    SWOMCD
    SPC MCD 171927=20
    ALZ000-172130-

    Mesoscale Discussion 0810
    NWS Storm Prediction Center Norman OK
    0227 PM CDT Wed May 17 2023

    Areas affected...southern AL

    Concerning...Severe potential...Watch unlikely=20

    Valid 171927Z - 172130Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated strong to locally severe thunderstorms capable of
    45-60 mph gusts will potentially yield pockets of wind damage.

    DISCUSSION...Visible satellite/radar mosaic imagery shows a
    developing cluster of thunderstorms moving slowly east-southeast
    over southwest AL. Surface observations ahead of the activity
    indicate temperatures have warmed into the upper 80s with dewpoints
    in the upper 60s. Weak westerly tropospheric flow according to KMOB
    VAD data will favor slow, eastward-moving thunderstorms. Objective
    analysis shows 1500-2000 J/kg MLCAPE and forecast soundings show a
    very moist profile. Water-loaded downdrafts will likely be the
    primary hazard with the stronger cores. Where localized 45-60 mph
    gusts occur over the next couple of hours (through 2130 UTC/430pm
    CDT), pockets of wind damage are probable.

    ..Smith/Grams.. 05/17/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7RmXAmmNFYnpi6EvN7ud3zcCwp4o492vFDGIQZPzhZM51b89r1tX3sR7DMQeTvLejd_PxpOYZ= EsEG6NNkZ9LSwa0S08$ for graphic product...

    ATTN...WFO...MOB...

    LAT...LON 31268821 31668790 31998755 31998699 31668638 31358643
    31128670 31058732 31268821=20


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