SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0618 PM CST Fri Dec 19 2025 Valid 200100Z - 201200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Synopsis... A mid-level trough and accompanying surface trough are ejecting into the Atlantic, with any available scant buoyancy being displaced east of the CONUS. As such, any thunderstorms and accompanying thunderstorm wind threat should be ending soon, though damaging gusts from gradient flow (non-thunderstorm processes) may persist through the evening hours. Elsewhere across the CONUS, a zonal upper pattern will be in place, with a few embedded impulses poised to traverse the northwestern quadrant of the CONUS over the next few hours. Pockets of cooler temperatures aloft with these impulses may support just enough buoyancy (however scant) for a few lightning flashes across portions of northwestern Wyoming and the Pacific Northwest coastline through early tonight. ..Squitieri.. 12/20/2025
