• MESO: Mesoscale Discussion 1570

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, July 23, 2022 23:04:59
    ACUS11 KWNS 232304
    SWOMCD
    SPC MCD 232304=20
    PAZ000-MDZ000-VAZ000-DCZ000-WVZ000-240100-

    Mesoscale Discussion 1570
    NWS Storm Prediction Center Norman OK
    0604 PM CDT Sat Jul 23 2022

    Areas affected...parts of central and northern Virginia into
    Maryland and south-central Pennsylvania

    Concerning...Severe Thunderstorm Watch 492...

    Valid 232304Z - 240100Z

    The severe weather threat for Severe Thunderstorm Watch 492
    continues.

    SUMMARY...Isolated damaging gusts or marginal hail remains possible
    within and just east of the watch area for an hour or two.

    DISCUSSION...Storms continue to redevelop along a long-lived outflow
    boundary, periodically indicating marginal hail cores as well as
    wind gust potential. Multiple observations have recently measured
    wind gusts in the 30-40kt range as the line has moved out of WV.=20

    The air mass ahead of the surging outflow remains unstable, with
    MLCAPE near 1500 J/kg. While minimal convective inhibition exists,
    and heating has been lost, the surging outflow may continue to
    support sporadic marginally severe storms, whether hail or gusts.

    Given the time of day, and lack of any larger-scale support other
    than the outflow, it appears any severe risk will be isolated
    through evening, and additional watches are not expected. In the
    short term, local extensions may be utilized depending on storm
    trends.

    ..Jewell.. 07/23/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9ZUx3X_OSZtifGDQCu4dgeJH0xM8NZC1Z2AoZdqqOM7wxJzLBg36hopzcYviFbd2S8tU1MuGC= YmzxkUFvLcWzQxg7UE$ for graphic product...

    ATTN...WFO...AKQ...CTP...LWX...RNK...

    LAT...LON 38967809 39477777 39977760 40287743 40327708 40147670
    39807657 39287658 38827676 38117714 37397785 37267842
    37467881 37687892 37877895 38237856 38607829 38967809=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.14-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)
  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, July 16, 2023 02:56:28
    ACUS11 KWNS 160256
    SWOMCD
    SPC MCD 160256=20
    NMZ000-COZ000-160500-

    Mesoscale Discussion 1570
    NWS Storm Prediction Center Norman OK
    0956 PM CDT Sat Jul 15 2023

    Areas affected...Extreme southeast CO into northeast/east-central NM

    Concerning...Severe Thunderstorm Watch 495...

    Valid 160256Z - 160500Z

    The severe weather threat for Severe Thunderstorm Watch 495
    continues.

    SUMMARY...Isolated supercells may continue into late evening, with a
    threat of large hail and possibly a tornado. WW 495 has been
    extended in time to 05 UTC (11 PM MDT).

    DISCUSSION...At 0250 UTC, isolated supercells are ongoing from
    southeast CO into northeast/east-central NM. While MLCINH is
    beginning to increase across the region with the onset of nocturnal
    cooling, it will not become prohibitive for maintenance of
    surface-based storms until later tonight, and a couple supercells
    may persist into late evening as they continue to move
    south-southeastward.=20

    Large hail will likely remain the primary hazard in the short term,
    but a tornado was recently reported with the supercell now in
    Harding County, and a modest increase in low-level shear/SRH with
    time may continue to support a brief tornado threat with the more
    intense supercells. With some threat likely to persist past the 03
    UTC (9 PM MDT) expiration time of WW 495, the watch has been locally
    extended to 05 UTC (11 PM MDT).

    ..Dean.. 07/16/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!66dArVi9-Ihw1wIdGQgfawyVBkD-ENoxvzF-sa_5Gfxy-lLZNEOJC8z8XwpdyB59N0z8896VQ= BHhXTUnZBMWqcncU4s$ for graphic product...

    ATTN...WFO...PUB...ABQ...

    LAT...LON 37260441 37260323 36340322 35690321 35250323 34520333
    33750354 34020501 34900515 37260441=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.14-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)