Marine Weather and Tide Forecast for Discovery Bay, CA

DISCUSSION
Mostly clear conditions continue across interior NorCal this afternoon, with just a few high clouds visible on GOES West visible satellite imagery. Winds have calmed significantly across the area, with just a few canyon sites reporting winds over 30 mph, and everywhere in the Valley showing gusts below 20 mph. While winds will be generally lighter the next few days, north to east winds will continue through the end of the week.

Otherwise, the ridging pattern we've been experiencing for a while looks to remain in place for the foreseeable future. This means continued dry and clear conditions into the weekend. The probabilities of reaching freezing (32 F) remain relatively low, with the NBM advertising around a less than 25% chance tonight through Friday morning. With the cold overnight/morning temperatures and lighter winds in the forecast, areas of patchy frost may develop in the Valley through the short term forecast period. Highs will be near to slightly above normal for the time of year, generally in the 50s to mid 60s in the Valley, and 30s to 50s at higher elevations.

.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)...
High amplitude Eastern Pacific upper ridging continues off the West Coast through the weekend. The ridge axis shifts inland on Monday, then a weak short wave moves through it on Tuesday. Areas of gusty north to east wind will be possible late Sunday into Monday. Otherwise, dry weather expected with near normal high temperatures.

AVIATION
Mainly VFR conditions over interior NorCal next 24 hrs. Surface wind generally below 12 kts except areas of N-E surface wind 15-25 kts in N and E foothills/mountains thru 20z Wed.

STO WATCHES/WARNINGS/ADVISORIES
None.