400
FXUS66 KEKA 070955
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
155 AM PST Fri Nov 7 2025

.SYNOPSIS...Lingering rain showers through early this morning.
Northerlies return for the coastal ranges today, followed by
light offshore winds this weekend. Drier and generally warmer
weather is expected for this weekend through at least early next
week. Wet weather may return as early as mid next week.

&&

.KEY MESSAGES...

- King tides with tidal anomaly will could cause again minor
  flooding in low lying areas around Humboldt Bay early this
  afternoon

- Drier and generally warmer weather is expected for this weekend
  through at least early next week.

- Wet weather may return as early as mid next week.


&&

.DISCUSSION...Overnight, light to locally moderate rainfall across
the area will continue to push east and south along the cold
front. Rain showers will gradually to dissipate through the
morning hours as an upper level ridge and surface high pressure
builds in quickly over the West Coast. Expect a dry and pleasant
day as a drier air mass moves in. High temperatures are forecast
to feel feel great, right around normal for this time of year,
generally in the 60s. Some breezy northerly winds are expected
over the coastal headlands and exposed ridges this afternoon.
Tonight into Saturday, areas of valley fog are likely to develop,
so be prepared for some reduced visibility if you`re traveling.

Ridging pattern will continue to build and strengthen over the
region, acting like a "weather dome" that keeps our skies clear
and temperatures rising through at least Tuesday. Well offshore
over the ocean, an elongated slow-moving low-pressure system is
expected to develop, but it won`t directly affect the area. The
offshore flow regimen (easterly winds), especially at night, will
keep the air very dry and reinforce the warming trend. Interior
highs are forecast to be in the mid 70s to low 80s this weekend
and early next week. Even the coastal areas are expected to warm
up to mid 60s to low 70`s before the sea breezes develop. Although
on Monday, we might see a slight change as a weak frontal system
moves in from northwest, bringing mostly increasing clouds, but no
measurable rain or cooling cooling is expected.

Ensemble cluster indicates the high pressure breakdown and begin
to shift eastward on Wednesday as a positively tilted cutoff
trough slowly approaches the area. There is a lot of uncertainty
in the timing and location of this system. However, clusters and
operational model guidances, GFS and ECMWF, are in a good agreement
with widespread precipitation Thursday- Friday. In addition, the
CW3E Tools for GFS Ensemble and ECMWF EPS indicate there is
75-90% chance of IVT greater than 250 kg/m/s arriving mid to late
next week across the area. /ZVS


&&

.AVIATION...(6Z TAFs)...Light rain showers are moving across the
area and will likely begin to taper off and move out of the area by
sunrise. Stratus is possible both at the coast and the interior
valleys. Generally, IFR to MVFR ceilings are forecast at all the
terminals through sunrise. Visibility reductions are possible too,
but confidence is lower. Skies are likely to clear shortly after
sunrise, with only a few high clouds remaining by the afternoon. JB


&&

.MARINE...Breezy southerly winds have started to ease as a system
moves out of the area. However, a mid-period west swell has filled
in keeping seas elevated. Winds turn northerly as high pressure
builds back in. Winds are forecast to remain relatively light,
peaking only at 15-20 kts this afternoon. Seas will gradually ease
and are currently forecast to drop below 10 ft by early Saturday.
Another mid-period west swell at 6-8 ft is forecast to build in
Monday. Light winds are likely to continue through at least Tuesday,
where north winds may briefly increase in the afternoon. Still,
these are currently forecast to remain below small craft advisory
criteria with winds peaking at 15-20 kts. A system approaching the
area Wednesday into Thursday will likely return elevated southerly
winds and seas. JB


&&

.COASTAL FLOODING...King tides will continue Friday and Saturday,
but weakening south winds and decaying swell conditions will
gradually reduce the risk of coastal flooding. Minor coastal
flooding will remain possible around Humboldt Bay late morning and
early afternoon Friday mostly in localized areas such as King Salmon
and the Arcata Bottoms. Minor flooding is possible again on
Saturday.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 4 AM PST Saturday for PZZ450-455-
     470-475.

&&

$$

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
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png