369
FXUS66 KEKA 020744
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
1244 AM PDT Tue Jun 2 2026

.SYNOPSIS...Above-seasonable temperatures are expected to
continue with widespread Minor HeatRisk for the interior through
Tuesday. Temperatures will cool gradually starting on Wednesday
and into the weekend. A weak cold front will promote a deepening
marine layer and coastal drizzle. Enhanced west to northwest winds
through the channeled terrain and higher terrain on Wednesday, shifting
to the coast Thursday afternoon. Stronger winds possible Friday
and into the weekend.


.KEY MESSAGES...

- Above-normal temperatures through Tuesday, with interior Minor
  HeatRisk.

- Gradual cooling trend and return of marine layer this week and
  continuing into the weekend.

- Enhanced west-northwest winds through the channeled terrain and
  higher ridges on Wednesday, followed by breezy north-northwest
  winds along the coast and exposed ridges on Thursday.

-Stronger winds possible Friday and into the weekend.

&&

.DISCUSSION...Coastal stratus with some fog is forecast to form and
persist Tuesday. A local wind eddy will dictate how fast the clouds
can dissipate, and there is a chance it lingers at least into the
afternoon. A weak trough and front will move through late Tuesday
through Wednesday. Light drizzle and perhaps a few light showers
will be all the precipitation received from them.

Behind the passage of the trough, a Northeast Pacific trough and a
ridge of high pressure to its south will begin strengthening the
pressure gradient late Wednesday, with further strengthening
Thursday. Northerly to westerly winds increase in response, with
breezy conditions, particularly inland over the ridges and through
channeled terrain. Mendocino and Lake counties will see better
coverage of stronger winds, where there is a high probability (60
to 80%) for gusts over 30 mph Wednesday afternoon and overnight.
These winds will remain Thursday, but will be weaker. A stronger
Northeast Pacific trough will drive into the Pacific Northwest
Friday, and this will create an even tighter pressure gradient and
likely stronger winds Friday and into the weekend.


&&

.AVIATION...Stratus expected to fill in along the north coast
through Tuesday morning. Uncertainty still exists on how shallow the
ceilings will lower to. The neighboring profilers are showing a
shallow marine layer, and guidance has trending with higher
probabilities for LIFR conditions and possibly some fog. Southerly
return flow from a wind eddy has established itself along the
Humboldt and Del Norte coast. This feature will hold the stratus
over the immediate coast Tuesday until it weakens, which will likely
occur later in the afternoon after 20Z. Surface winds will be
light, with some west to northwest gusts in the afternoon through
the interior.


&&

.MARINE...The local pressure gradient is being weakened by
an approaching weak front and trough. As a result, northerly winds
will continue trending low through Tuesday. Winds will remain
stronger, up to 20 kts in the southern waters, mainly south of Cape
Mendocino. Behind the passage of the trough, a Northeast Pacific
trough and a ridge of high pressure to its south will begin
strengthening the pressure gradient late Wednesday, with further
strengthening Thursday. Northerly winds increase in response, and
gale strength gusts will begin to develop in the southern waters
Wednesday night in the southern waters. Gale strength gusts may
expand into the northern waters, mainly south of Point St. George,
Thursday afternoon.


&&

.FIRE WEATHER...Dry weather and above-normal temperatures through
Tuesday, with generally lighter winds. Marine influence will
again expand starting Tuesday, bringing cooler and more moist
conditions. Temperatures will trend lower through the end of the
week. West- northwest winds will strengthen behind a front on
Wednesday. The interior ridges and channeled terrain will see
stronger gusts of 20 to 30 mph. Locally higher gusts are likely
south in Lake County. Good to moderate RH recoveries are expected
to prevail for most of the area. Moderate recoveries in zones 419
and 421, with the locally gusty winds, will create elevated fire
weather conditions Wednesday. A deeper trough will likely bring
stronger winds Friday and into the weekend.



&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 9 AM PDT this morning for PZZ470-
     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