• MESO: Mesoscale Discussion 2155

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Oct 19 01:53:05 2025
    ACUS11 KWNS 190153
    SWOMCD
    SPC MCD 190152=20
    TNZ000-MSZ000-190245-

    Mesoscale Discussion 2155
    NWS Storm Prediction Center Norman OK
    0852 PM CDT Sat Oct 18 2025

    Areas affected...western Tennessee...northern Mississippi

    Concerning...Severe Thunderstorm Watch 626...

    Valid 190152Z - 190245Z

    The severe weather threat for Severe Thunderstorm Watch 626
    continues.

    SUMMARY...Severe threat continues within WW626.

    DISCUSSION...A line of thunderstorms across western Tennessee has
    seen an uptick in lightning activity over the last 30 minutes, with
    somewhat better organized radar presentation. Velocity from KNQA
    shows 40-45 kt winds around 1-1.5 KFT. Surface objective analysis
    would suggest that the southerly low-level jet is increasing around
    30-40 kts. The thermodynamic profile remains weak, but increasing
    shear for organization may allow for a period of increasing damaging
    wind potential. At this time, uncertainty in longevity of this
    threat leads to low confidence in a downstream watch but local
    extension of WW626 may be warranted.

    ..Thornton.. 10/19/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8Vm42veV2vMB-ngcdYODVuvSmQGFJZ88NEXYIcHCGouXVNmGpdeAtxDFDpPmrDKLwZ80w9t5W= SHCF9_EZsi73velr4Q$ for graphic product...

    ATTN...WFO...MEG...

    LAT...LON 35388945 35568939 35738922 35778889 35778871 35618850
    35368852 35128863 34768903 34798912 34728930 34758948
    34788957 35388945=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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