1. Forum
  2. FidoNet
  3. WEATHER

  • MESO: Mesoscale Discussion 1703

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jul 17 22:45:38 2025
    ACUS11 KWNS 172244
    SWOMCD
    SPC MCD 172243=20
    MEZ000-NHZ000-VTZ000-180015-

    Mesoscale Discussion 1703
    NWS Storm Prediction Center Norman OK
    0543 PM CDT Thu Jul 17 2025

    Areas affected...Portions of northern New England

    Concerning...Severe Thunderstorm Watch 521...

    Valid 172243Z - 180015Z

    The severe weather threat for Severe Thunderstorm Watch 521
    continues.

    SUMMARY...Strong/damaging winds will remain possible into perhaps
    mid evening. A brief tornado could occur in northeast Maine over the
    next 1-2 hours.

    DISCUSSION...The KCBW VAD data continues to show large low-level
    hodographs. Convection in northeast Maine has certainly trended more
    linear over the past few hours, but a few marginal supercells remain
    and have shown moderate low-level rotation periodically. These
    storms will pose a threat for damaging winds and a brief tornado for
    another 1-2 hours before moving into the Canadian Maritimes.

    Farther south and west, a line of weak convection has developed
    along the Vermont/New Hampshire border. With temperatures ahead of
    this line currently in the mid/upper 80s F (at least in New
    Hampshire), there is at least some potential for a strong/damaging
    wind gust to occur. Deep-layer shear has also increased in this area
    as the shortwave trough has approached late this afternoon. That
    being said, diurnal cooling will also increase with time. It is
    unclear how strong this activity will be as it approaches western
    Maine later this evening.

    ..Wendt.. 07/17/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5SrwDLadw-eB68rWm17556EpCiTV863W__qVSaBBPynLkIqvRJRcV8edH9Zbr-PpDWY6z5cvm= XH_0w2xVg6YMLjmF2w$ for graphic product...

    ATTN...WFO...CAR...GYX...BTV...ALY...

    LAT...LON 43147303 44687274 46486986 47126818 47136772 46306776
    45506921 44756976 43107215 43147303=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =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 3.28-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)