textproduct: Eureka

SYNOPSIS

Scattered showers will continue through the evening and diminish Monday. Conditions will briefly clear and dry this week, though fog will most likely be widespread. Rain will return around mid week.

DISCUSSION

Isolated but some moderate showers have crossed the area today, again mainly in Trinity County. Some thunderstorms have formed over the northern Sacramento Valley but will most likely remain east of the area. Generally less than 0.1 inches have rain have been recorded anywhere across the area during the day. Shower coverage will increase slightly this evening alongside slight (15%) thunderstorm chances for the interior, but additional rain fall will most likely stay below 0.1 inches unless thunderstorms form.

Very weak high pressure will build over the area Monday and Tuesday. This will help skies clear and conditions slightly warm. That said, recent rain will most likely promote interior valley fog each night with a marine layer close to shore. There is high confidence that another short wave will cross the area around mid next week. This shortwave will once again bring showers focused on the north coast with little chance (20%) of even wetting rain for the southern half of the area. For the northern half, there is less than a 20% chance of rainfall over 1 inch with most likely rain of 0.25 to 0.5 inches for most of the coast. Colder drier weather alongside some moderately strong north wind will build behind the shortwave to end the week. /JHW

AVIATION

Showery conditions continue to diminish with a slight chance of more stratiform rain into this evening. General cloud cover will also continue for the region as a weak low pressure system moves onshore. General VFR ceilings will diminish to MVFR to possibly IFR ceilings this evening and overnight. There is also a chance for interior valley fog overnight and into early tomorrow morning. Winds will remain light.

MARINE

Winds generally remain light and southerly. Seas remain dominated by a decaying mid period northwest swell while wind waves remain at or below 5-6 ft. Slightly elevated south winds are possible around Cape Mendocino today, possibly gusting up to 20 kts. A few stronger gusts and isolated thunderstorms are possible around the strongest showers, though the threat has weakened compared to Saturday. Winds remain light and seas remain mild going into early this coming week. Stronger northerly winds are possible mid to late in the week. JB

EKA WATCHES/WARNINGS/ADVISORIES

CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... None.