Marine Weather and Tide Forecast for Philo, CA

DISCUSSION
A scan of the early morning satellite imagery reveals a well-defined shortwave entering the Northern CA coastline. Mid to high level clouds will increase throughout the day. This feature and associated cold front will have little impacts other than a few light showers/drizzle and a quick shot of cooler temperatures.

Northerly winds will increase behind the front today, and gusts to 35 mph along the coast and up to 40 mph in the southern inland areas are probable. Afternoon winds will remain breezy Sunday as the shortwave trough positions southward over the Great Basin region before quickly ejecting out to the Four Corners area.

Temperatures will drop some behind the cold front, and low temperatures for some of the interior valleys may reach frost- developing levels Sunday morning and perhaps Monday morning. For Sunday morning, frost will be conditional to the effective clearing of cloudcover and dewpoint temperatures after any light showers that manage to occur.

A warming trend will develop next week as high pressure builds back in. NBM is showing a 40 to 60 percent probability of the some of the warmest inland valleys reaching 90 degrees. A couple mostly dry fronts make make it over the ridge next week with little impacts other than some enhanced northerly winds, and perhaps very light precipitation closer to the Oregon border or coastal, light drizzle. Looking at the clusters and ensembles, chances for a wetting rain may increase some late next week. JJW



AVIATION
A passing upper level shortwave combined with shallow marine influence has made for very inconsistent periods of LIFR to VFR conditions overnight. That said, a generally lifting marine layer has largely produced VFR conditions for most coastal terminals. COnditions will remain inconsistent through the morning with drizzle likely building just after sunrise and elevated ceilings around 3 kft. Al told, MVFR conditions will be most likely.
Ceilings will most likely drop lower again this evening with areas of IFR ceilings near shore. /JHW



MARINE
North winds have remained mostly gentle overnight with short period seas dropping below 5 feet. North winds will return again this afternoon, however, and push near shore with gusts up to around 30 kts. By late tonight short period waves will build back to near 8 feet, especially in the southern waters. During this whole period, the sea state will be almost exclusively controlled by short period waves with only a very minor northwest swell up to 3 feet and a southerly swell up to 2 feet. A similar pattern of short periods of calm broken up by periods of moderate to strong north winds will most likely continue through most of next week. /JHW

EKA WATCHES/WARNINGS/ADVISORIES
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory from 3 PM this afternoon to 9 AM PDT Sunday for PZZ450-470.

Small Craft Advisory until 9 PM PDT Sunday for PZZ455-475.