• MESO: Mesoscale Discussion 1666

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 21 19:06:49 2023
    ACUS11 KWNS 211906
    SWOMCD
    SPC MCD 211906=20
    GAZ000-TNZ000-ALZ000-MSZ000-212100-

    Mesoscale Discussion 1666
    NWS Storm Prediction Center Norman OK
    0206 PM CDT Fri Jul 21 2023

    Areas affected...Southern Middle and Western Tennessee...northern
    Alabama...and northwestern Georgia

    Concerning...Severe potential...Watch likely=20

    Valid 211906Z - 212100Z

    Probability of Watch Issuance...95 percent

    SUMMARY...Damaging wind threat to continue downstream of WW535. A
    watch will likely be needed soon.

    DISCUSSION...A line of storms continues to move eastward through the
    Memphis metro as of 1845Z. Trends in high-res guidance have been to
    continue this line eastward into portions of Middle Tennessee,
    western Tennessee, northern Alabama, and northern Georgia through
    the evening. This is further supported by daytime heating with
    temperatures in the mid to upper 80s ahead of the line and MLCAPE
    around 1500-2000 J/kg. Ahead of the main line, a few more discrete
    storms are beginning to develop. These will also be capable of
    damaging down burst winds, given the hot and unstable air mass and
    weak shear profiles. A watch will likely be needed soon.

    ..Thornton/Hart.. 07/21/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6TCVbZfefl_25Xpzdroa4jLSKjRv8FBJ8enfUJvvy__HbOqFCOvy9_3ZlQGzW8wbePdh3NhqY= QGSeCGspBHiIDA8MUw$ for graphic product...

    ATTN...WFO...MRX...FFC...OHX...BMX...HUN...MEG...

    LAT...LON 35218506 35158501 34978495 34898495 34658498 34538500
    34378510 34268518 34208531 34188537 34108552 34018571
    33968593 33928625 33888648 33838684 33848712 33888735
    33948760 34058785 34218818 34328829 34628838 35048833
    35228830 35378830 35528825 35638810 35798761 35888680
    35808629 35678580 35428531 35308515 35218506=20


    =3D =3D =3D
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