NORTHERN CALIFORNIA WATERS

SYNOPSIS...A high pressure ridge will remain W of the area today. A low pressure trough along the California coast will slowly intensify across the northern and central areas today and tonight. Another area of high pressure will build in from the W and NW tonight through early Tue, then gradually weaken through Tue night. The low pressure trough will weaken Sun and shift further inland Sun night into Mon. The low pressure trough will redevelop near the N and central coast Tue and Tue night and remain near the coast Wed and Wed night while weakening. The area of high pressure will remain W of the area while drifting W Wed and Wed night.