textproduct: Eureka

SYNOPSIS

Showers will continue to taper off today. Dry weather is expected Thursday and Friday with chilly temperatures likely. A few rain showers and interior thunderstorms are possible this weekend and into early next week.

DISCUSSION

The area of low pressure continues to move onshore, and will continue to bring a few lingering showers through the morning. Some breaks in the clouds will be possible by the afternoon as drier air moves in and high pressure starts to build. Lingering moisture from recent rains will likely bring fog in many of the interior valleys tonight. Still, some of the coldest areas, especially in interior Mendocino and Trinity, could see temperatures drop into the low to mid 30s tonight and possibly Thursday night. Frost Advisories may be needed should this trend continue. Interior high temperatures will rebound into the 70s for most interior valleys Thursday and Friday.

This weekend, an upper low approaches southern California while a trough digs into the Pacific Northwest. Additional moisture and cooler temperatures aloft could bring a few showers and isolated thunderstorms to the interior. NBM is giving only a 10-15% chance for over a half inch of rain for the interior areas, so little to no impacts are expected. Wetting rain (>0.1") also looks unlikely with only around a 20-30% chance across the area. JB

AVIATION

Showers have mostly exited the area Tuesday evening with lingering instability keeping ceilings elevated, allowing for mostly MVFR to VFR conditions. Further scattering is expected during the day Wednesday alongside mostly VFR conditions all across the area. There is a slight chance (30%) of some MVFR mist and ceilings along the coast Wednesday night into Thursday, but otherwise conditions will remain mostly favorable. /JHW

MARINE

Gentle winds have died down and shifted westerly in the wake of a passing storm system. The current sea state is moderately steep around 6 feet, mostly made of decaying short period seas and a mid period westerly swell. SUch moderate conditions will persist or even ease through the day Wednesday.

Northerly winds will begin to increase by Thursday, especially int he southern waters with gusts over 25 kts in the lee of Cape Mendocino. Short period seas will quickly build over 8 feet in response to the winds. Stronger breezes will push close to shore Thursday evening, at least briefly. Similar winds will most likely continue into the end of the week but are more likely to remain only in the outer waters. /JHW

EKA WATCHES/WARNINGS/ADVISORIES

CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from 2 PM Thursday to 2 AM PDT Friday for PZZ455.

Small Craft Advisory from 8 AM Thursday to 5 AM PDT Friday for PZZ475.