Area Forecast Discussion
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
803
FXUS66 KEKA 082252
AFDEKA
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
352 PM PDT Fri May 8 2026
.SYNOPSIS...Temperatures will slowly warm for the interior into the
weekend. A shallowing marine layer may allow for some breaks in
gloomy clouds close to the coast into the weekend.
&&
.KEY MESSAGES...
-High pressure building into the weekend will warm interior
temperatures. High temperatures will peak Monday with minor to
moderate heat risk for interior valleys.
-Gloomy coastal skies more likely to scatter and clear alongshore in
the afternoons this weekend with some enhanced afternoon northerlies
around Sunday.
-Cooler temperatures and slight thunderstorm potential late next
week.
&&
.DISCUSSION...Weak high pressure has started to spread over the
area today. This has enabled slight warming int he interior with some
highs breaking above 80. Meanwhile, a still strong but shallowing
and drying marine inversion has allowed for gradually clearer
scattering skies along the coast, with Humboldt Bay currently the
last refuge of clouds. Similar conditions will continue into the
weekend. Marine influence will be strongest in the sheltered areas of
Humboldt Bay, with more reliable day time clearing elsewhere.
Moderate north wind will push on to shore each afternoon this evening
and may help mix some low clouds away.
High pressure will continue to build through Sunday and into early
next week. High temperatures will most likely peak around Next
Monday. Interior highs will most likely reach the low to mid 90s.
Solidly above average temperatures will promote generally minor to
moderate Heat Risk with the greatest risk in Lake County due to warm
conditions continuing overnight. A shallow marine layer along shore
will likely make for more scattered skies in the afternoon. Should
skies clear enough, coastal temperatures could reach into the mid
60s on Monday.
Most model ensemble members show a cutoff low forming up along shore
mid to late next week. This low will help slightly weaken high
pressure and drop interior temperatures. This low could bring a
threat of thunderstorms, but most models show it staying too dry and
too far offshore to bring much risk. Most thunderstorm potential
late next week is no more than 10% at the moment in most models.
/JHW
&&
.AVIATION...After a weak frontal passage this morning, increasing
dry northerly flow is gradually clearing out coastal stratus. As a
result, coastal terminals will most likely see VFR conditions this
afternoon and evening. However, coastal stratus will make a return
late tonight brining IFR conditions. Stratus is anticipated to be
shallower overnight tonight, meaning it is less likely to make it to
KUKI by early Saturday morning. VFR conditions are expected to
prevail for most inland terminals. /JLW
&&
.MARINE...Southerly winds continude to increase to fresh to strong
breezes by this afternoon. Saturday, these stronger winds are
expected to begin to expand farther north with 15 to 20 kt across
much of the area north of Cape Mendocino. This is expected to build
short period wind driven waves to around 4 to 7 feet. Stronger winds
are expected on Sunday with near gale to gale force gusts possible
by Sunday afternoon. Winds are anticipated to gradually ease early
next week; however, steep seas will prevail across the coastal
waters. MKK
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 11 PM PDT Sunday for PZZ455-475.
&&
$$
NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.
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For forecast zone information
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https://www.weather.gov/images/eka/zonemap.png