Severe thunderstorms are not expected Sunday.
Zonal flow aloft will become modestly more amplified on Sunday. Upper-level ridging will become more prominent in the central U.S. A low-amplitude shortwave trough will move into the Northwest during the evening. Isolated low-topped thunderstorms may impact coastal areas of Washington and far northwest Oregon. Along the central Gulf coast, a cold front will slow and become nearly stationary inland. A weak warm/moist advection regime could lead to development of showers. Given the slight rise in mid-level heights, residual capping, and lack of greater low-level forcing, potential for thunderstorm development within this regime still appears low.