SOUTHERN CALIFORNIA WATERS

SYNOPSIS...High pressure will persist W of the area tonight while weakening, before another high builds NW of the waters Fri into Sat night. A low pressure trough near California coast will slowly strengthen tonight into Fri, then gradually weaken Fri night into Sat night. A weak cold front will move over the northern waters Fri and Fri night, move over the central waters Sat and Sat night, then pass through the southern portion Sun and Sun night. High pressure will weaken NW of the waters Sun and Sun night while receding W, as a broad trough develops and expands over the N and central waters Mon into Mon night, and persists into Tue night.