textproduct: Eureka

SYNOPSIS

High pressure builds in this week. Warmer and drier conditions will persist through Thursday. Coastal drizzle and breezier winds are possible Friday night into Saturday.

KEY MESSAGES

- Warming trend for the interior will continue through this week.

- Troughing to the north of the area on Tuesday and Wednesday could bring chances of interior thunderstorms.

- Cooler temperatures, breezy winds, and a slight chance of rain or coastal drizzle are possible Friday into Saturday.

DISCUSSION

High pressure continues over Northwest California today. Temperatures continue to rise early this week with triple digits possible for the warmest valleys by Monday. This warming trend is likely to continue through at least mid week.

Troughing to the north of the area on Tuesday could bring additional chances of interior thunderstorms. Confidence is not high as instability and moisture currently look meager, but this will need to be watched. Otherwise, dry and warm interior conditions are likely for much of this coming week week.

Ensembles are showing fairly high confidence in a upper-level trough moving north of the area late Friday into Saturday. NBM is showing low, but nonzero chances for wetting rain (over 0.1 inches) in Del Norte. The most likely scenario would be coastal drizzle. What is slightly more certain is enhanced westerly wind Friday night into Saturday. There are high chances of gusts over 30 mph in southern Mendocino and Lake Counties, with breezy winds likely across the area. Additionally, Cooler air and cloud cover with this trough will drop interior high temperatures into the 80s. JB

AVIATION

With high pressure building back into Northwest California, shallow coastal stratus is expected along the coast with more clear conditions inland. IFR to LIFR ceiling conditions are expected for coastal terminals with potential for fog as well. Coastal stratus could linger into late morning. Stratus could travel partially up coastal river valleys; however, VFR conditions are more than likely anticipated for most interior terminals, such as KUKI.

MARINE

Northerly winds gradually increase today with isolated gale force gusts likely in the lee of Cape Mendocino and Cape Blanco. Seas that are currently dominated by a diminishing mid period NW swell of around 5 to 7 ft will become more dominated by steep wind waves. Steep wind waves may propagate into the inner waters too, even as winds nearshore remain lighter. Winds diminish Monday into Tuesday, especially nearshore, but stronger winds return mid to late next week. JB

EKA WATCHES/WARNINGS/ADVISORIES

CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 11 AM PDT this morning for PZZ450.

Small Craft Advisory until 3 AM PDT early this morning for PZZ455.

Small Craft Advisory until 9 PM PDT this evening for PZZ470.

Small Craft Advisory until 3 PM PDT this afternoon for PZZ475.