SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Fri Dec 26 2025 Valid 270100Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast through tonight. ...Discussion... Scattered showers persist this evening from parts of CA into northern UT, north of the midlevel jet with cool temperatures aloft. With the loss of heating and in the absence of significant large-scale ascent, a steady downward trend is expected through late evening. Given weak instability coupled with a cooling boundary layer, severe storms are unlikely. To the east, a midlevel wave continues to move across the Mid Atlantic, with scattered low-topped showers from WV across the warm front into PA. The 00Z PIT sounding shows weak elevated instability sufficient for a few lightning flashes with the larger batch of precipitation as it pushes east across the remainder of PA, NJ, MD and DE. ..Jewell.. 12/27/2025
