SPC Forecast Products Storm Prediction Center

  • SPC - No watches are valid as of Sun Nov 17 00:49:02 UTC 2019
    on November 17, 2019 at 12:48 am

    No watches are valid as of Sun Nov 17 00:49:02 UTC 2019.

  • SPC - No MDs are in effect as of Sun Nov 17 00:49:02 UTC 2019
    on November 17, 2019 at 12:48 am

    No Mesoscale Discussions are in effect as of Sun Nov 17 00:49:02 UTC 2019.

  • SPC Nov 17, 2019 0100 UTC Day 1 Convective Outlook
    on November 17, 2019 at 12:48 am

    SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0639 PM CST Sat Nov 16 2019 Valid 170100Z - 171200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for severe thunderstorms appears negligible across the U.S. tonight. ...01Z Outlook Update... A cluster of thunderstorms approaching North Carolina coastal areas appears supported by an area of upper forcing for ascent, which has been spreading northeastward, east of coastal areas, to the north of the center of the mid-level cyclone. It appears that this activity could spread into the North Carolina Outer and Inner Banks vicinity, where the surface frontal zone remains closest to coastal areas. Elevated instability to the immediate cool/northwest side of the frontal zone is generally weak due to poor mid-level lapse rates, and it is not clear that thermodynamic profiles evident in the 17/00Z raob from Morehead City NC will support lightning. It appears that the risk for lightning becomes increasingly negligible with inland extent from immediate coastal areas. ..Kerr.. 11/17/2019 Read more