• MESO: Mesoscale Discussion 1105

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 26 03:31:54 2021
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    ACUS11 KWNS 260331
    SWOMCD
    SPC MCD 260331=20
    INZ000-MIZ000-ILZ000-MOZ000-260430-

    Mesoscale Discussion 1105
    NWS Storm Prediction Center Norman OK
    1031 PM CDT Fri Jun 25 2021

    Areas affected...east-central Missouri northeast to northern Indiana

    Concerning...Severe Thunderstorm Watch 318...319...

    Valid 260331Z - 260430Z

    The severe weather threat for Severe Thunderstorm Watch 318, 319
    continues.

    SUMMARY...Severe threat continues to diminish across the watch
    areas. A brief window of strong wind potential may remain across
    eastern Illinois, but the overall convective trends suggest a new
    watch likely will not be needed.

    DISCUSSION...Overall thunderstorm severity continues to wane across
    the watch areas as evidenced by weakening of MESH cores and warming
    cloud tops. Additionally, given the loss of diurnal heating, low
    level stability should slowly increase overnight, reducing the
    potential for organized, severe thunderstorm outflows and brief
    tornadoes. However, a recent measured wind gust of 59 knots at
    Decatur, IL, reiterates that the wind potential, albeit low, does
    remain. Current thinking is that the overall isolated nature of the
    threat should preclude the need for a new watch, although a local
    extension in time of Severe Thunderstorm Watch 318 may be needed if
    the wind potential does not diminish as quickly as expected.

    ..Marsh.. 06/26/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qUngfUJnrCmf-i72YiYQfruJV-QYpyrtLf1zukyyG2UUSBjDhIw0AVP04aQnRzOWMAJPKIA0$=
    for graphic product...

    ATTN...WFO...IWX...IND...LOT...ILX...LSX...DVN...SGF...

    LAT...LON 38359166 40709030 41788609 41628560 40668561 39708705
    39228862 38499034 37759124 38359166=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 26 03:35:50 2021
    This is a multi-part message in MIME format...

    ------------=_1624678553-2022-6182
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    ACUS11 KWNS 260335
    SWOMCD
    SPC MCD 260335 COR
    INZ000-MIZ000-ILZ000-MOZ000-260430-

    Mesoscale Discussion 1105
    NWS Storm Prediction Center Norman OK
    1035 PM CDT Fri Jun 25 2021

    Areas affected...east-central Missouri northeast to northern Indiana

    Concerning...Severe Thunderstorm Watch 317...319...

    Valid 260335Z - 260430Z

    CORRECTED FOR INCORRECT WATCH NUMBERS

    The severe weather threat for Severe Thunderstorm Watch 317, 319
    continues.

    SUMMARY...Severe threat continues to diminish across the watch
    areas. A brief window of strong wind potential may remain across
    eastern Illinois, but the overall convective trends suggest a new
    watch likely will not be needed.

    DISCUSSION...Overall thunderstorm severity continues to wane across
    the watch areas as evidenced by weakening of MESH cores and warming
    cloud tops. Additionally, given the loss of diurnal heating, low
    level stability should slowly increase overnight, reducing the
    potential for organized, severe thunderstorm outflows and brief
    tornadoes. However, a recent measured wind gust of 59 knots at
    Decatur, IL, reiterates that the wind potential, albeit low, does
    remain. Current thinking is that the overall isolated nature of the
    threat should preclude the need for a new watch, although a local
    extension in time of Severe Thunderstorm Watch 317 may be needed if
    the wind potential does not diminish as quickly as expected.

    ..Marsh.. 06/26/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!o9Nfv4tE_9TnOo3ohxJy1q9z0cbSAg_4pcFyVkQOMIwq5f1nBCwlcS_3dSMAWnjewaOyN77b$=
    for graphic product...

    ATTN...WFO...IWX...IND...LOT...ILX...LSX...DVN...SGF...

    LAT...LON 38359166 40709030 41788609 41628560 40668561 39708705
    39228862 38499034 37759124 38359166=20



    ------------=_1624678553-2022-6182
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    = = =
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