Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0109 AM CST Fri Nov 29 2024 Valid 011200Z - 021200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Sunday. ...Synopsis... The overall pattern will not change much from Day 2/Sat to Day 3/Sun. A broad upper trough will persist across the eastern CONUS while and Pacific coast upper ridge migrates modestly eastward. A lightning flash or two will remain possible across the Great Lakes within lake effect snow bands, but very minor instability will keep coverage less than 10 percent. Easterly low-level flow across the western Gulf of Mexico could also allow for a few thunderstorms in a warm advection regime just offshore the lower TX Coast. Otherwise, dry, stable surface high pressure will preclude thunderstorm activity across the rest of the country. ..Leitman.. 11/29/2024