SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1100 AM CDT Fri Oct 31 2025 Valid 311630Z - 011200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm potential will remain low through tonight. ...Synopsis and Discussion... With longwave upper troughing dominating east of the Rockies and the prevalence of continental surface trajectories, the large-scale pattern will remain generally unfavorable for thunderstorms over the CONUS today. Occasional lightning flashes could occur across northern New England with focused ascent near a surface low and northward-shifting front, but this potential will remain limited and further diminish this afternoon. Weak elevated convection may develop late tonight across west-central Texas as low-level warm advection increases, but forecast thermodynamic profiles suggest that charge separation is unlikely prior to 12Z Saturday. ..Gleason/Thornton.. 10/31/2025
