• MESO: Mesoscale Discussion 1869

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Oct 16 06:10:58 2021
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    ACUS11 KWNS 160610
    SWOMCD
    SPC MCD 160610=20
    OHZ000-160745-

    Mesoscale Discussion 1869
    NWS Storm Prediction Center Norman OK
    0110 AM CDT Sat Oct 16 2021

    Areas affected...portions of southeast Ohio

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

    Valid 160610Z - 160745Z

    Probability of Watch Issuance...20 percent

    SUMMARY...A weak, brief tornado or two may occur over parts of
    southern Ohio over the next couple of hours.

    DISCUSSION...A persistent supercell near the southeastward-advancing
    cold front has produced several moderate mesos with radar-indicted
    tornado debris signatures in Highland and Ross counties over the
    past hour. This cell appears to be located near a meso low and/or
    MCV, which is likely supporting locally enhanced SRH. Furthermore,
    this cell is within an area of relatively stronger low-level
    instability and surface vorticity as noted in latest mesoanalysis.
    Downstream surface dewpoints are in the low/mid 60s with locally
    backed surface winds. This should continue to support at least low
    potential for sporadic re-intensification of ongoing convection and
    some threat for weak/brief spin-ups to occur over a relatively small
    area. The broader environment appears unlikely to support a more
    widespread threat or increasing convective coverage. While a tornado
    watch is not expected at this time, trends will continue to be
    monitored.

    ..Leitman/Edwards.. 10/16/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!tY1XeaPkkKR7EIL0p3i2VQxsm7b82CsKe3dsNU-GnB3dYn8MOcvgalJjzbp3DfU0YkmMfo18$=
    for graphic product...

    ATTN...WFO...PBZ...RLX...ILN...

    LAT...LON 39558315 39778274 40068212 40208154 40208116 40088096
    39838099 39598132 39448185 39348250 39388311 39558315=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Oct 16 06:17:32 2021
    This is a multi-part message in MIME format...

    ------------=_1634365058-119248-538
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    ACUS11 KWNS 160617
    SWOMCD
    SPC MCD 160616 COR
    OHZ000-160745-

    Mesoscale Discussion 1869
    NWS Storm Prediction Center Norman OK
    0116 AM CDT Sat Oct 16 2021

    Areas affected...portions of southeast Ohio

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

    Valid 160616Z - 160745Z

    CORRECTED FOR GRAPHIC ERROR

    Probability of Watch Issuance...20 percent

    SUMMARY...A weak, brief tornado or two may occur over parts of
    southern Ohio over the next couple of hours.

    DISCUSSION...A persistent supercell near the southeastward-advancing
    cold front has produced several moderate mesos with radar-indicted
    tornado debris signatures in Highland and Ross counties over the
    past hour. This cell appears to be located near a meso low and/or
    MCV, which is likely supporting locally enhanced SRH. Furthermore,
    this cell is within an area of relatively stronger low-level
    instability and surface vorticity as noted in latest mesoanalysis.
    Downstream surface dewpoints are in the low/mid 60s with locally
    backed surface winds. This should continue to support at least low
    potential for sporadic re-intensification of ongoing convection and
    some threat for weak/brief spin-ups to occur over a relatively small
    area. The broader environment appears unlikely to support a more
    widespread threat or increasing convective coverage. While a tornado
    watch is not expected at this time, trends will continue to be
    monitored.

    ..Leitman/Edwards.. 10/16/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!rogcgs3cgpoGNV7Kqm6SmTZpf4EyrcmfFhC9T4O8zo9BlephQujlacOAWz3WTKNyJBnvPBYW$=
    for graphic product...

    ATTN...WFO...PBZ...RLX...ILN...

    LAT...LON 39958275 40338190 40468145 40438113 40228102 39928109
    39698142 39508195 39368245 39398280 39448300 39628312
    39778301 39958275=20



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