• MESO: Mesoscale Discussion 1008

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue May 27 17:09:32 2025
    ACUS11 KWNS 271709
    SWOMCD
    SPC MCD 271708=20
    GAZ000-FLZ000-ALZ000-271845-

    Mesoscale Discussion 1008
    NWS Storm Prediction Center Norman OK
    1208 PM CDT Tue May 27 2025

    Areas affected...eastern Alabama...the western Florida
    Panhandle...western and central Georgia

    Concerning...Severe potential...Watch possible=20

    Valid 271708Z - 271845Z

    Probability of Watch Issuance...60 percent

    SUMMARY...A line of storms in Alabama has started to strengthen. A
    severe thunderstorm watch may be needed this afternoon.

    DISCUSSION...Low to mid 70s dewpoints have become well established
    east of an ongoing line of storms in Alabama. Within this region,
    abundant sunshine has permitted heating into the low 80s across
    central Alabama to the upper 80s along the Gulf Coast. This has
    resulted in moderate destabilization by mid-day. SPC mesoanalysis
    indicates an uncapped environment ahead of this line with recent
    lightning trends indicating a strengthening of convection within the
    past 30 minutes.=20

    Shear is relatively weak across the region, indicated by lack of
    upper-level cloudcover across Alabama and Georgia ahead of this
    mornings convection. However, a well-established cold pool/MCV will
    likely be sufficient to maintain some severe weather threat through
    the afternoon. In addition, slightly stronger mid-level flow (~35
    knots) is apparent from the KHDC VWP, indicating that some stronger
    mid-level flow may overspread the warm sector through the afternoon
    and support greater storm organization.=20

    Overall, the warm/moist profile and weak lapse rates should limit
    the hail threat with water-loaded downdrafts and a damaging wind
    threat as the primary threat. The greatest threat will be with any
    embedded bowing segments which could develop along the line.=20

    Cold air damming across northern Georgia will likely represent the
    northernmost extent of the severe weather threat with strengthening
    high pressure likely maintaining the relative location of this
    colder air through the day. Some damaging wind threat could persist
    for a few counties into the colder air, but as the colder air
    deepens with northward extent, the threat for surface-based damaging
    wind gusts should dissipate.

    ..Bentley/Guyer.. 05/27/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5IZILo1SQuEjdzyLXEf0p_zgUVbAW8KZz-p5f8r5hWNexNa_SpbnTGaOb7mpKLkUnthaRdmSG= QSjvH3KjpQwIgF71Kk$ for graphic product...

    ATTN...WFO...FFC...TAE...BMX...MOB...

    LAT...LON 33608639 33878492 33738390 33258243 32748231 32188249
    31818303 30868432 30358617 30688789 31278804 32638681
    33608639=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)