textproduct: Eureka

KEY MESSAGES

* Generally dry conditions with only weak marine influence near shore through Thursday.

* A warming trend peaking Thursday with interior highs in the 90s.

* Cold front most likely to cross the area Sunday into Monday. 50% chance of wetting rain along the North Coast.

SYNOPSIS

A general warming trend will continue through Thursday, even for the coast where marine influence remains weak. Cooler and more moist conditions by the weekend.

DISCUSSION

Weak high pressure continues to build across the area. This pattern will allow for temperatures to continue increasing Wednesday with interior highs reaching into the mid 80s at low elevations. Heat will peak Thursday and Friday withs highs reaching unseasonably into the low 90s. Meanwhile, a very weak marine layer will continue forming along shore aided by a strengthening interior inversion. That said, moderate offshore flow (especially Thursday) will keep conditions dry and make any marine layer week and shallow.

High pressure will break down this weekend. Winds turning back onshore will help push in a deeper and stronger marine layer with interior highs pulling back into the 70s. Potential is increasing for a cold front passage around Monday. Wetting rain potential along the North Coast has increased to about 50% with most likely rainfall of 0.1 to 0.25 inches. Regardless of rainfall, there is high confidence in generally seasonable cool and moister conditions through next week. /JHW

MARINE

Seas remain steep and hazardous to smaller crafts, particularly in the southern outer waters as decaying short period seas mix with a moderately large NW swell. Moderate to fresh breezes and a mixed sea state expected through the coastal waters for much of the week. Areas downwind of Cape Mendocino can expect stronger winds through Wednesday. /EYS

FIRE WEATHER

A warming and drying trend will peak Thursday and Friday. Interior highs will reach near 90 with RH sticking in the the teens. ERC values will return close to the 80th percentile, representing moderate to high fire danger. That said generally weak winds will limit spread. The exception to this would be Lake County on Thursday when tilting high pressure will enable some enhanced NE wind during the day (gusts near 25 kts). /JHW

EKA WATCHES/WARNINGS/ADVISORIES

CA... Frost Advisory until 8 AM PDT this morning for CAZ104-106- 108-110-111-114-116-117-120.

NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from noon today to 3 AM PDT Thursday for PZZ470.

Small Craft Advisory until 3 AM PDT Thursday for PZZ475.