844
FXUS66 KEKA 022018
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
118 PM PDT Mon Jun 2 2025

.SYNOPSIS...Warm conditions continue, albeit a few degrees cooler
than the previous few days. Relatively gusty winds will continue
today, diminishing by midweek. Warm and dry conditions for the
first few weeks of June are to be expected.


KEY MESSAGES:

-Strong gusty winds near shore today, and diminishing throughout
 the week.

-Slight Fire Concerns this afternoon for portions of the interior
 (interior Del Norte, eastern Trinity, NE Mendocino, and eastern
 Lake), with relatively dry conditions for the interior all week


&&

.DISCUSSION...A strong pressure gradient continues to gradually
diminish along the North Coast. High pressure out in the eastern
Pacific continues to push against a low pressure system ejecting
off shore to the south of Northwest California. Northerly winds
over the region have a chance to remain elevated this afternoon
into the evening and will continue to diminish along the North
Coast through mid week. The highest gusts will linger over higher
elevations and particularly at the King Range and the Klamath
Mountains of Del Norte County.

Area fuels are not advanced in the curing process to warrant
raising red flags for problematic zones. Of particular interest
today are eastern and southern Trinity county along with isolated
ares of interior Del Norte and southern Lake. Fine fuels are
likely the only probable source for ignition on this side of the
valley. 1000 and 100 hour dead fuels need a few more cycles of
warm and dry conditions, which will occur sooner than later.

With the high pressure system moving over the area, interior
regions could have periods in the afternoon with gusty winds and
low min RHs (15% to 25%). Wind along shore will also gradually
decrease Tuesday and through the week, though some moderate
afternoon gusts remain most likely through mid week. Long range
ensembles show generally high confidence in warm, dry conditions
continuing through early June.




&&

.AVIATION...18Z TAF: VFR conditions prevail with NW wind gusts 25 to
35 knots at CEC early this afternoon. A nearshore stratus deck has
gradually been migrating north from Point Arena under the influence
of a southerly wind reversal. Northward progression will likely
remain stopped south of Cape Mendocino due to strong northerly winds
over the waters. Strong winds will continue at the coastal terminals
and elevated terrain through the afternoon, with gusts approaching
40 knots at CEC and 25 to 30 knots at ACV. As winds ease at the
surface this evening, LLWS is possible at the coast as NE winds
remain elevated aloft; 30 to 35 knots. Winds will gradually ease at
the surface overnight into early Tuesday morning with potential for
haze development around Humboldt Bay. HREF still indicating 60 to
80% chance for ceilings <500 feet along the southerly Humboldt and
Mendocino coasts through Tuesday.


&&

.MARINE...

-Exceptionally strong north winds are verifying and forecast
to continue this evening with gusts 40 to 50 kt.

-Extremely steep and hazardous seas over 18 to 20 feet are verified
on the buoys and will only slowly begin to ease later today.

-Mariners should remain in port and alter plans until calmer
conditions develop. Very strong winds and very large waves could
capsize vessels.

A very tight pressure gradient remains between a strong high and an
interior low is causing these abnormally strong northerly winds.
Though the gradient will ease some as the low drifts south, strong
northerlies will continue through much of this week.

Full gales with storm force gusts are forecast to continue Monday
and Tuesday, especially in the outer waters. Gales are probable for
much of this week with highest chances in the outer northern waters
and downwind of Pt St George and local areas downwind of Cape
Mendocino.

Steep northerly waves expected to propagate into the northern inner
and southern waters through Wednesday. Hazardous Seas Warnings for
for Z450 & Z475 ave been extended to account for these wind-
generated waves. This long duration of exceptionally strong
northerlies and large steep waves is forecast to ease late this week
when gale conditions become more isolated in the northern waters.



&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
     Hazardous Seas Warning until 3 AM PDT Wednesday for PZZ450.

     Storm Warning until 3 AM PDT Tuesday for PZZ470.

     Gale Warning from 3 AM Tuesday to 3 AM PDT Thursday for
     PZZ470.

     Hazardous Seas Warning until 3 AM PDT Thursday for PZZ475.

&&

$$

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