• DAY2 ENHANCED RISK TXtoMO

    From Mike Powell@618:250/1 to All on Thu Apr 3 09:07:00 2025
    ACUS02 KWNS 030600
    SWODY2
    SPC AC 030558

    Day 2 Convective Outlook
    NWS Storm Prediction Center Norman OK
    1258 AM CDT Thu Apr 03 2025

    Valid 041200Z - 051200Z

    ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM NORTHEAST
    TEXAS ACROSS MUCH OF ARKANSAS AND INTO FAR SOUTHERN MISSOURI...

    ...SUMMARY...
    Several clusters of strong to severe storms are possible from
    central Texas across the ArkLaTex and into the lower Ohio Valley
    Friday and Friday night. The greatest threat for tornadoes, large
    hail and damaging winds will be from the ArkLaTex across much of
    Arkansas into far southern Missouri, including strong tornado potential.

    ...Synopsis...
    On Friday, a broad fetch of south/southwest winds aloft will extend
    from the southern Plains into the Midwest, as an upper low moves
    across AZ/NM. A surface boundary will extend roughly from the OH
    Valley into central TX early on Friday, with a wave of low pressure
    developing during the day over northeast TX/southeast OK. This
    feature will then translate northeastward along the front into IN/OH
    late. As this occurs, a rather rapid warm frontal surge will occur
    over AR and into far southern MO, aided by persistent southerly
    deep-layer winds from surface to 850 mb. This will also result in a
    rapid increase in instability, and shear favorable for supercells
    with tornado potential.

    Behind the low, a cold front will push across the remainder of
    northern TX and into south-central TX. Although post frontal,
    elevated instability will persist, with the influence of the upper
    trough to the west resulting in overnight hail potential into central TX.

    ...From Texas into Arkansas and toward the lower Ohio Valley...
    Scattered showers and storms are likely near the front from the Red
    River into northern AR/southern MO early in the day. Sufficient
    instability and lapse rates, along with strong deep-layer shear will
    favor hail potential.

    During the day, areas of heating will occur over the warm sector,
    which will remain very moist. Afternoon supercells are anticipated
    over northeast TX/southeast OK into western AR, with a continuation
    across northern AR/southern MO through evening. This area will
    experience substantial pressure falls with a favorable corridor for
    a strong tornado threat. Depicted model hodographs indicate
    effective SRH over 400 m2/s2 will be common. Given continued
    northward motion of the warm front across southeast MO into the OH
    Valley late, storms should be able to persist/ride along with the
    front with access to unstable air mass.

    Overnight, cool temperatures aloft with the upper trough and a surge
    of elevated theta-e from the southeast and atop the surface cold
    front should favor widespread storms with large hail expected into
    central TX.

    ..Jewell.. 04/03/2025

    $$
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