FXUS66 KEKA 062156 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 256 PM PDT Sun Apr 6 2025 .SYNOPSIS...Rain returns to continue today as a quick moving system moves through. Showers on Monday morning. light rain focused on Del Norte and No. Humboldt Counties Tuesday. Warm, dry inland conditions Wednesday and Thursday. Light rain returning to Del Norte and No. Humboldt Counties late in the week. && .DISCUSSION... Key Messages: Rain today until Monday early afternoon Monday. Rain fall amounts expected to be around 2-3" in Del Norte Co., 0.5-1.25" in Humboldt Co., <0.5" expected in Trinity and Mendocino Co., and Lake Co. with less than 0.1". Minimal Snow impacts are expected, with a dusting of snow possible at Scott Mtn Pass. Showers with light rain expected Tuesday in Del Norte Co. Warm inland temperatures Wednesday. Inland valleys could see max values of between 75-80F. Weather Pattern Overview: A quick moving, relative weak cold front due to a low pressure center in the Gulf of Alaska will pass over our area today. In the wake of this front, cool air will follow bring snow levels down to ~4,000ft elevation. A shortwave disturbance will bring light showers on Tuesday. Weak ridging will build in Wednesday allowing inland high temperatures to build. Rain is suspected to return late in the week as another low pressure is forecasted to impact the PacNW. Forecast Confidence & Deviations: Confidence is high for rain arriving today. Hi-Res composite reflectivity models show rain showers ending around early afternoon tomorrow. After a calm night, very light rain will return Tuesday with NBM showing ~50% probability of 0.1" of rainfall during the day. Warmer temperatures will arrive midweek with almost all inland valleys showing at least an 80% probability of temperatures exceeding 75F for Wednesday and Thursday. && .AVIATION...A front crossing the area has so far brought rain all along the coast alongside some moderately gusty south wind. Rain has helped generate periods of MVFR conditions but ceilings have so far remaining elevated above 3 kft. There is strong model signal (70% chance) that ceilings will at least sporadically drop this evening with periods of IFR conditions, but the trend is likely to be inconsistent. More instability will move on early Monday, allowing for continued showers but also producing variable ceilings and visibilities between VFR and IFR. /JHW && .MARINE...A front has crossed the waters during the day today bringing gusts in outer waters generally around 25 kts. SHort period seas have built near 6 feet but wind shave generally been to short lived to build much higher. That said, a long period westerly swell has built in excess of 10 feet generating steep seas regardless of the short period waves. SOutherly wind gusts will generally decrease overnight. Another couple of weak fronts will pass the area during the day Monday and Tuesday, but southerly wind gusts over 21 kts will most likely be largely restricted to the northern waters. The steep swell will gradually decrease, most likely falling below 10 feet during the day Monday. /JHW && .EKA WATCHES/WARNINGS/ADVISORIES... CA... Beach Hazards Statement until 11 PM PDT this evening for CAZ101-103-104-109. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 10 AM PDT Monday for PZZ450-455. Small Craft Advisory until 11 PM PDT Monday for PZZ470-475. && $$ Visit us at https://www.weather.gov/eureka Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png