• MESO: Mesoscale Discussion 2444

    From COD Weather Processor @1:2320/107 to All on Wed Nov 4 19:34:00 2026
    ACUS11 KWNS 041933
    SWOMCD
    SPC MCD 041933
    TNZ000-GAZ000-ALZ000-042130-

    Mesoscale Discussion 2444
    NWS Storm Prediction Center Norman OK
    0133 PM CST Wed Nov 04 2026

    Areas affected...parts of south central through northeastern Alabama...adjacent eastern Tennessee and northwestern Georgia

    Concerning...Severe potential...Watch unlikely

    Valid 041933Z - 042130Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Strengthening thunderstorm development possible through
    4-6 PM EST, with stronger cells occasionally becoming capable of
    producing small hail, and eventually downbursts with potential to
    produce locally damaging surface gusts.

    DISCUSSION...A broken, pre-cold frontal squall line has been
    maintained and undergoing slow intensification, aided by low-level
    convergence and forcing for ascent downstream of negatively tilted
    mid-level troughing now spreading into/across the southern
    Appalachians vicinity. Based on an 18Z observed sounding from BMX,
    as well as Rapid Refresh forecast soundings, the environment ahead
    of this activity includes a deep surface-based moist layer (with
    surface dew points near 70F), which is becoming characterized by
    CAPE in excess of 1000 J/kg with continuing insolation beneath a
    relatively warm, capping layer based near/above 700 mb. At the same
    time, southerly low-level wind fields have been veering and
    weakening with time, resulting in shrinking, more linear low-level
    hodographs. However, deep-layer shear beneath 40-50+ kt
    southwesterly mid-level flow remains strong and potentially
    supportive of evolving supercell structures.

    Over the next few hours, it appears that lift and at least some
    further boundary-layer warming/destabilization will continue to
    overcome lingering mid-level inhibition and support intensifying
    thunderstorm development. Although thermodynamic profiles appear
    generally warm with relatively high freezing and wet-bulb zero
    levels, a few stronger cells may become capable of producing small
    to perhaps (briefly) marginally severe hail and, eventually, a few
    downbursts with potentially damaging surface gusts before weakening.
    This may continue while spreading eastward into early evening,
    before diminishing.

    ..Kerr/Hart.. 11/04/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!8ZcNC1tH0f4GF307UvudEuh-A-FDP5RhFG2lalvgTeKyV828YfJKGVnoPDj9ds4LKcDPxtT_hTI9GQ8fFCO4u9c7DqY$ for graphic product...

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

    LAT...LON 35628429 34428469 32188615 31538763 33158702 35948579
    35628429

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
    = = =
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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)