• MESO: Mesoscale Discussion 1242

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, June 10, 2025 18:46:29
    ACUS11 KWNS 101845
    SWOMCD
    SPC MCD 101844=20
    MTZ000-101945-

    Mesoscale Discussion 1242
    NWS Storm Prediction Center Norman OK
    0144 PM CDT Tue Jun 10 2025

    Areas affected...portions of northwestern Montana

    Concerning...Severe potential...Watch unlikely=20

    Valid 101844Z - 101945Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Marginal risk for wind and hail through the afternoon and
    evening.

    DISCUSSION...Deepening cumulus is noted on visible satellite across
    the high terrain in western Montana. A storm or two have initiated
    over the last 30 minutes. As large scale ascent increases in
    combination with orographic ascent through the afternoon, additional thunderstorm development is expected across the high terrain before
    moving into the lower elevations. With several more hours of heating
    expected, lower elevations should see MLCAPE generally around
    250-500 J/kg by the late afternoon. This will support potential for
    damaging winds and a few instances of hail. Flow across the region
    is generally weak which should discourage a more organized threat
    and the need for a watch.

    ..Thornton/Mosier.. 06/10/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8Gc4d6N7s0MsNTPWetmXyJTXwtGXryI3ocOfyV3L1RpBsmH0JHJ4cJRF2WrGvmY6TxESNx4tp= TJkPuO79jbfDbDR8bU$ for graphic product...

    ATTN...WFO...TFX...MSO...

    LAT...LON 48081401 48501420 48901425 49041402 49061253 48531158
    47220961 46641050 46321178 46311206 46871299 48081401=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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