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  • MESO: Mesoscale Discussion 0137

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Feb 9 00:45:14 2023
    ACUS11 KWNS 090045
    SWOMCD
    SPC MCD 090044=20
    COZ000-WYZ000-UTZ000-090445-

    Mesoscale Discussion 0137
    NWS Storm Prediction Center Norman OK
    0644 PM CST Wed Feb 08 2023

    Areas affected...Southeastern WY...northwestern CO...and far eastern
    UT

    Concerning...Snow Squall=20

    Valid 090044Z - 090445Z

    SUMMARY...The potential for snow squalls should increase during the
    next few hours over parts of the central Rockies. Rapid visibility
    reductions in bursts of heavy snow will be possible with the more
    organized squalls.

    DISCUSSION...Latest water vapor imagery indicates increasing
    large-scale ascent overspreading southern WY into northern CO -- in
    the left exit region of an approaching mid/upper-level jet streak.
    Mosaic radar data shows a related increase in snow showers
    along/ahead of an approaching cold front, and this activity should
    continue spreading southeastward into the evening/overnight hours.
    Over the next couple hours, the environment in the vicinity of these
    snow showers should become increasingly favorable for a couple
    organized snow squalls, given steepening low-level lapse rates,
    increasing ascent, and strengthening low-level flow. Rapid
    visibility reductions will be possible in bursts of heavy snow,
    especially with the more organized/banded snow squalls that can
    develop over the central Rockies into the overnight hours.

    ..Weinman.. 02/09/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9VEqErcjRN24CriqgaM4KQZzPC1GHD8I0dmxQTUkMwaeOQ743KQnJ921vJhYMm5aIA8yWkquV= V-D9sgN7jcHR5SNuSw$ for graphic product...

    ATTN...WFO...PUB...BOU...CYS...RIW...GJT...

    LAT...LON 39130949 40080949 40800922 41370862 41970725 42490614
    42660485 42180416 40990416 39420552 38220698 38000854
    38450923 39130949=20


    =3D =3D =3D
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