• MESO: Mesoscale Discussion 0154

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, March 04, 2019 00:16:28
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    ACUS11 KWNS 032316
    SWOMCD
    SPC MCD 032315
    SCZ000-GAZ000-FLZ000-ALZ000-040115-

    Mesoscale Discussion 0154
    NWS Storm Prediction Center Norman OK
    0515 PM CST Sun Mar 03 2019

    Areas affected...far southeast Alabama...northern Florida...southcentral/southeast Georgia and southern/eastern South
    Carolina

    Concerning...Severe Thunderstorm Watch 8...9...

    Valid 032315Z - 040115Z

    The severe weather threat for Severe Thunderstorm Watch 8, 9
    continues.

    SUMMARY...The threat for tornadoes, damaging winds and isolated
    large hail continues across the remaining valid portions of Tornado
    Watches 8 and 9. In addition, a new watch may be needed across far
    southeast Georgia and northern Florida prior to 01Z.

    DISCUSSION...Regional radar composite at 23Z shows several
    supercells with strong low-level rotation within the warm sector
    over southern sections of GA and SC and far southeast AL. In
    addition, areas of rotation were also noted within a line of storms
    along the cold front from Lee County GA to Destin FL. The immediate
    downstream environment will remain favorable for all severe hazards,
    including strong tornadoes from southern SC southwest across
    southern GA and northern FL, where MLCAPE averages 500 to 1000 J/KG
    and westerly deep shear of near 50 kts exists. Pressure falls of
    2.5 to 3.5 mb/2 hours remain maximized over southern SC and
    east-central GA, and backed low-level winds in this region have
    resulted in 0-1 km SRH in excess of 350 m2/s2. Thus, a continued
    tornado risk will exist for the next few hours.

    Across portions of northern FL, storms will exit WW 8 prior to 01Z,
    and a local extension or a new WW will be needed. This will be
    coordinated with local NWS offices within the hour.

    ..Bunting/Guyer.. 03/03/2019

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...

    LAT...LON 29738344 29918429 29788520 29988556 30408596 30858582
    31448484 31798430 32658317 33208237 33588162 33758088
    33777993 33477931 32947941 32038064 31358101 30818247
    30428291 29738344



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