• Severe Threat IL/MO/AR/MS/TN/KY

    From Mike Powell@618:250/1 to All on Wed Apr 2 19:57:08 2025
    MOST PROBABLE PEAK TORNADO INTENSITY...155-190 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN

    ACUS11 KWNS 030034
    SWOMCD
    SPC MCD 030033=20
    TNZ000-KYZ000-ILZ000-MOZ000-ARZ000-MSZ000-030230-

    Mesoscale Discussion 0365
    NWS Storm Prediction Center Norman OK
    0733 PM CDT Wed Apr 02 2025

    Areas affected...parts of srn IL...the MO Bootheel...srn/ern
    AR...nwrn MS...wrn TN...wrn KY

    Concerning...Tornado Watch 98...

    Valid 030033Z - 030230Z

    The severe weather threat for Tornado Watch 98 continues.

    SUMMARY...A continued gradual increase in potential for damaging
    surface gusts, and tornadoes associated with meso-vortices embedded
    within the evolving mesoscale convective system, are expected
    through 9-10 PM CDT. Additional supercells posing a risk for strong
    tornadoes still appear possible across parts of southeastern
    Arkansas into the Greater Memphis area.

    DISCUSSION...The narrow surface cold pool appears to have
    strengthened along a corridor from Texarkana through Little Rock,
    Batesville, AR and Poplar Bluff MO, where 2 hourly surface pressure
    rises of 2-4 mb were sampled in the 00Z surface obs. A meso low has
    developed along the gust front near Cape Girardeau, where a 2
    hourly fall in excess of 3 mb was evident. Another may be
    developing near/west of Memphis, where another notable fall center
    was evident (in excess of 2 mb in 2 hours).

    The boundary-layer remains characterized by moderate potential
    instability in a narrow corridor within the confluent low-level
    regime across southeastern Arkansas toward the Greater Memphis area,
    where additional discrete supercell development with potential to
    produce a strong tornado remains possible. Farther north into the
    lower Ohio Valley this is becoming more unclear as the gust front
    begins to overtake initially more discrete storm development.

    Regardless, potential for damaging wind gusts and tornadoes with
    evolving meso-vortices within the developing mesoscale convective
    system are expected to continue a slow eastward progress across
    southeastern Arkansas, and areas east of the Mississippi River into
    lower Ohio Valley through 02-03Z.

    ..Kerr.. 04/03/2025

    ATTN...WFO...OHX...PAH...MEG...LZK...

    LAT...LON 33659273 34439189 35149111 35819050 36668981 37398938
    37808913 37818827 36928790 36118840 34399063 33459213
    33659273=20

    MOST PROBABLE PEAK TORNADO INTENSITY...155-190 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN

    $$
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