1. Forum
  2. Fidonet Message
  3. WEATHER

  • MESO: Mesoscale Discussion 0174

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, March 09, 2019 22:18:10
    This is a multi-part message in MIME format...

    ------------=_1552166295-1983-14664
    Content-Type: text/plain

    ACUS11 KWNS 092118
    SWOMCD
    SPC MCD 092117
    INZ000-KYZ000-ILZ000-MOZ000-092315-

    Mesoscale Discussion 0174
    NWS Storm Prediction Center Norman OK
    0317 PM CST Sat Mar 09 2019

    Areas affected...southern Illinois and vicinity

    Concerning...Severe potential...Watch possible

    Valid 092117Z - 092315Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Isolated strong to severe storms are possible this
    afternoon, with damaging wind or perhaps a tornado.

    DISCUSSION...A warm front continues to move northward across the St.
    Louis area and into southern Illinois, with substantial clearing
    allowing for additional heating as well. Surface analysis shows mid
    50s F dewpoints surging northward, with 2hr pressure falls up to 6
    mb. An axis of near-60 F dewpoints exists over extreme southern
    Illinois southward into Arkansas as of 21Z.

    A small cluster of thunderstorms is currently moving toward the St.
    Louis area with indications of strong wind gusts. This is very near
    the surface low/upper vort track, and is coincident with strong
    cooling aloft.

    A small window of opportunity might exist for at least isolated
    severe storms ahead of the surface low and near the warm front.
    Forecast soundings indicate instability is weak, but may briefly
    increase enough to support low-topped supercells. Wind shear
    profiles are very strong, and should a supercell form, a tornado
    threat would naturally exist.

    ..Jewell/Thompson.. 03/09/2019

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...IND...PAH...ILX...LSX...

    LAT...LON 39409095 39529063 39728978 39718889 39578835 39368770
    39028748 38638742 38168745 37768768 37178861 36978902
    36988955 37219008 37859041 38639073 38859091 39089106
    39409095



    ------------=_1552166295-1983-14664
    Content-Type: text/plain; charset="US-ASCII"
    Content-Disposition: inline
    Content-Transfer-Encoding: 7BIT

    = = =
    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. ------------=_1552166295-1983-14664--

    --- SBBSecho 3.06-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)