textproduct: Eureka

SYNOPSIS

Scattered showers and isolated thunderstorms continue through this evening. Conditions will briefly warm and dry early next week with another round of generally light and beneficial rain midweek.

DISCUSSION

Showers and thunderstorms have started to diminish. High-resolution models are showing some redevelopment of showers around Del Norte, northern Humboldt, and the surrounding waters for much of the morning hours Sunday. Another round of showers is likely, mostly for the interior and the northern half of the area. Showers and isolated thunderstorms are possible again this afternoon and evening. The highest thunderstorm chances this afternoon are in Trinity County at around a 15 to 20% chance. Generally light rain is expected with totals generally less than 0.3 inches. There is a small chance (about 35%) of some higher elevation locations seeing over 0.5 inches.

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 10% chance of rainfall over 1 inch. Colder, drier weather with breezy north winds will build behind the shortwave to close next week. /JHW/JB

AVIATION...(6Z TAFs)

Showers generally taper off overnight, but could be periodically impactful for the coastal terminals. Model guidance suggests high probabilities for low ceilings and visibilities at the coastal terminals early this morning, but confidence is low as showers can disrupt stratus from forming. UKI is likely to see at least MVFR ceilings early this morning. Ceilings will likely lift shortly after sunrise. There is a 40% chance for MVFR or lower ceilings to continue through the day at the coastal terminals. JB

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 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 next week. Stronger northerly winds are possible mid to late next week. JB

EKA WATCHES/WARNINGS/ADVISORIES

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