FXUS66 KEKA 071057

AFDEKA



AREA FORECAST DISCUSSION

National Weather Service Eureka CA

357 AM PDT Mon Apr 7 2025



.SYNOPSIS...Occasional light rain showers continue today. Additional 

light rain and breezy south wind in Del Norte Tuesday. Warm and dry 

weather returns to the interior midweek. 





&&



.DISCUSSION...An area of low pressure continues to spin off the 

coast of Oregon early this morning. Occasional rain showers continue 

today as the low moves onshore. Snow levels drop behind the low 

this morning to around 5000-6000 ft, which could bring a rain/snow

mix to Highway 3 at Scott Mountain Pass if any showers pass 

through. Another shortwave passes to our north Tuesday, which 

brings a chance of light rain primarily for Del Norte. NBM 

probabilities for a 0.1 inch Tuesday is around 30-40% for much of 

Del Norte and probabilities are much lower to the south. Breezy 

winds of up to 35 mph are possible for exposed ridges and coastal 

headlands of Del Norte Tuesday. Outside Del Norte, high dew points

will bring areas of valley fog Tuesday, which will also reduce the

risk of a widespread frost or freeze. NBM probabilities for 

temperatures lower than 36 is less than 20% in all valleys outside

Trinity county. 



Ridging builds in midweek, bringing warm, sunny weather to the 

interior. The NBM probabilities for 80s are 30-40% for some valleys 

including Weaverville, Hayfork, Covelo, Ukiah, and Middletown. 

Another shortwave moves in Friday, which likely only brings some 

cloud cover to the area. The chance for any measurable 

precipitation is highest in Del Norte at around 50%, with much 

lower probabilities to the south. Ensembles diverge into the 

weekend, with a roughly 50/50 split between ridging and troughing,

though no significant systems are obvious on the horizon. JB





&&



.AVIATION...Precipitation has been diminishing overnight with  

periodic IFR ceilings and visibilities in mist and low clouds.

IR satellite imagery showed another cloud feature extending 

southward from a cyclonic circulation west Cape Blanco early this 

morning. High resolution models and HREF mean indicate light precip 

increasing again this morning as this feature intersects the coastal 

terrain. The light precip will most likely result in continued IFR 

for the coastal terminals. Confidence coastal terminals will improve 

today is not high. Expect MVFR conditions. High humidity and moist 

ground will probably lead to IFR in mist and/or low clouds. S-SW 

winds remain gusty at KCEC, 22-30kt til 07/18Z, decreasing this 

afternoon and evening. Gusty conditions return with approach of 

another trough line after 08/06z. DB  





&&



.MARINE...SW winds early this morning north of Cape Mendo diminish

today. Another trough expected to bring another increase in SW wind 

late tonight into Tue. Strongest winds near Pt St George with 

possible gusts to 30 kt. Winds go light and NW on Wed. Another 

trough approaches Thu, south winds generally on the light side. 

North to northwest winds strengthen on Friday. Seas expected to 

remain hazardous around 10 feet today due to a combo of westerly 

swell and short period SW waves. A secondary reinforcement of the 

westerly swell will arrive late this afternoon and evening and seas 

will probably remain elevated and hazardous near 10 ft. Gentle to 

moderate northwest winds and lower steep seas expected on Wednesday. 

Southerly winds to return on Thursday, but is not looking like a 

major storm at this point. Stronger northerlies and steeper NW waves 

on Friday will likely become hazardous for inexperienced mariners. 

Gale force northerlies possible over the weekend. DB





&&



.EKA WATCHES/WARNINGS/ADVISORIES...

CA...

None.

NORTHWEST CALIFORNIA COASTAL WATERS...

     Small Craft Advisory until 3 PM PDT this afternoon for 

     PZZ450-455.



     Small CraftAdvisory until 4 PM PDT Tuesday for PZZ470.



     Small Craft Advisory until 3 AM PDT Tuesday for PZZ475.



&&



$$



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For forecast zone information

see the forecast zone map online:

https://www.weather.gov/images/eka/zonemap.png