SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1140 AM CDT Wed Oct 01 2025 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected tomorrow (Thursday). ...Synopsis... A mid-level trough will amplify across the western U.S. as upper ridging persists east of the Rockies tomorrow (Thursday). With surface high pressure and associated statically stable conditions prevailing over the Rockies, and from the MS River to the East Coast, thunderstorm potential will remain quite low over most locales. A few lightning flashes may be observed from the southern Sierra to the northern Rockies, as deep-layer ascent from the aforementioned mid-level trough will lift a marginally buoyant airmass. A pocket of colder temperatures aloft will also overspread the Washington coastline, with a couple of lightning flashes possible given scant buoyancy. A few thunderstorms may develop across the Upper MS Valley in association with a passing mid-level impulse. Lastly, modest low-level moisture will pivot around the eastern U.S. surface high over the FL Peninsula into the Mid-MS Valley, which may promote a couple of thunderstorms. ..Squitieri.. 10/01/2025
