• MESO: Mesoscale Discussion 0350

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, March 30, 2022 06:02:44
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    ACUS11 KWNS 300602
    SWOMCD
    SPC MCD 300601=20
    TXZ000-300800-

    Mesoscale Discussion 0350
    NWS Storm Prediction Center Norman OK
    0101 AM CDT Wed Mar 30 2022

    Areas affected...Central and North Texas

    Concerning...Severe Thunderstorm Watch 73...

    Valid 300601Z - 300800Z

    The severe weather threat for Severe Thunderstorm Watch 73
    continues.

    SUMMARY...A threat for large hail and isolated wind damage will
    continue for several more hours across parts of central and north
    Texas. The threat is expected to move northeastward with time with
    most of the threat contained within the current weather watches over
    the next few hours.

    DISCUSSION...A broken line of strong thunderstorms is ongoing across
    the western Texas Hill Country, near an axis of instability with
    RAP-analyzed MLCAPE around 1000 J/kg and 500-700 mb lapse rates near
    8.0 C/km. The thermodynamic environment coupled with 0-6 km shear
    near 55 knots, evident on the Dyess Air Force Base WSR-88D VWP, will
    be favorable for large hail with the more intense cells. A
    wind-damage threat will also be possible, but should remain isolated
    due to a capping inversion that is evident on forecast soundings.
    The severe threat will continue to move northeastward over the next
    several hours and should mostly be contained by the ongoing severe
    watch and tornado watch that is located further to the northeast.

    ..Broyles/Edwards.. 03/30/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!tcucxqNsAvsdLXV07Qy1dVKJDR0xItdguudsukQ73M7DIUTUctc_4b3H4ImXRzWH0T3pDUBb$=
    for graphic product...

    ATTN...WFO...FWD...OUN...EWX...SJT...

    LAT...LON 30870031 30420014 30359954 30479902 30999828 31529758
    32139664 32669619 33229617 33649666 33649779 33189830
    32369871 31929918 31369986 30870031=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, March 26, 2023 11:19:53
    ACUS11 KWNS 261119
    SWOMCD
    SPC MCD 261119=20
    GAZ000-ALZ000-261215-

    Mesoscale Discussion 0350
    NWS Storm Prediction Center Norman OK
    0619 AM CDT Sun Mar 26 2023

    Areas affected...parts of western Alabama to central Georgia

    Concerning...Severe Thunderstorm Watch 81...82...

    Valid 261119Z - 261215Z

    The severe weather threat for Severe Thunderstorm Watch 81, 82
    continues.

    SUMMARY...Severe Thunderstorm Watches #81 and 82 will be replaced by
    a tornado watch shortly.

    DISCUSSION...Latest radar shows an intense supercell storm over
    southeastern Troup County in west-central Georgia, with strong
    low-level rotation and a TDS (per WSR-88D CC data) that has
    persisted for several volume scans. With several other supercell
    storms ongoing within the central Alabama to central Georgia zone,
    and the watches scheduled for 13Z expiration, current expectation is
    to replace WW 81 and 82 with a new Tornado Watch shortly.

    ..Goss/Grams.. 03/26/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6W1GlXSZdfGWFNLQ8Ku9Dbelj0YVamCks_4P7qswkY4kiKlITWwnLwMfRUERM-NYlDROWSXF6= qUtVDkMSewhwFFIDVI$ for graphic product...

    ATTN...WFO...FFC...BMX...MOB...

    LAT...LON 32058678 32038783 32408826 33008808 33278665 33688380
    33518315 33128317 32588426 32328603 32058678=20


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, April 02, 2024 17:59:06
    ACUS11 KWNS 021759
    SWOMCD
    SPC MCD 021758=20
    MSZ000-LAZ000-ARZ000-022000-

    Mesoscale Discussion 0350
    NWS Storm Prediction Center Norman OK
    1258 PM CDT Tue Apr 02 2024

    Areas affected...Portions of central/northern Louisiana into parts
    of southern/central Mississippi

    Concerning...Severe potential...Watch possible=20

    Valid 021758Z - 022000Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Though uncertainty exists, a watch is possible for
    portions of central/southern Mississippi depending on overall trends
    in storm coverage and organization. Large hail and damaging winds
    are the primary hazards.

    DISCUSSION...Storms in central Louisiana have steadily deepened over
    the past hour or two. These storms will continue northeastward into
    a moist airmass where temperatures are in the low 80s F. Additional
    storms are possible along the pre-frontal wind shift and later the
    cold front. The observed 17Z JAN sounding showed a very modest
    decrease in a warm layer at around 700 mb. Effective shear is
    sufficient for a few organized updrafts. Additional cooling aloft as
    the main synoptic trough approaches may also lead to some
    intensification by late afternoon. While the need for a watch is
    uncertain at this time, a watch for parts of central/southern
    Mississippi is possible should trends in convective coverage and
    organization warrant.

    ..Wendt/Thompson.. 04/02/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4qkU545Z54kcc-KD5DXBqI56UxidKrZRSwaKFkHB6B6_0LO3d3OIKMaMIqAMTihUy78eBkJ9D= p0zU8NDFronjRFqIoc$ for graphic product...

    ATTN...WFO...JAN...LIX...LCH...SHV...

    LAT...LON 31708930 31468978 31269050 31079193 31319260 31689257
    32079246 32409222 32789195 33339115 33669031 33518950
    33028885 32118890 31708930=20


    =3D =3D =3D
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