Gale Watch 20, NWS Eureka, CA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
248 PM PDT Fri Jun 17 2022

.SYNOPSIS...An upper level storm system will move east across the
region through Saturday, and will aid in periods of showers and
a few thunderstorms. Otherwise, drier and warmer weather will
develop across Northwest California during early to middle
portions of next week.

&&

.DISCUSSION...An upper-level storm system will gradually move east
across NWRN CA through Saturday. Cold air aloft combined with
modest boundary layer heating will be minimally sufficient for
mountain shower development and a few embedded thunderstorms this
afternoon, and again Saturday afternoon. Upper heights will then
build Sunday through early next week. Dry weather will be probable
as that occurs, and interior valleys will experience a warming
trend, with highs climbing into the mid to upper 90s on Tuesday
across portions of Lake, Trinity, and Mendocino Counties.
Otherwise, quasi-zonal flow aloft will aid in continued warm and
dry weather through the remainder of next week

Garner

&&

.AVIATION...VFR conditions prevail this afternoon, with broad low
pressure alongside very weak onshore winds allowing the marine
layer to mix out. Along the coast, model soundings show a weak
marine layer forming just after sunset as northwest winds begin to
build in again. A weak, elevated inversion will keep stratus
ceilings high, likely around 1500 feet, and visibilities good.
HREF shows the marine layer being ragged and inconsistent,
especially south of Del Norte county. At worst, MVFR conditions
are expected overnight along the coast. In the interior, some
isolated thunderstorms are possible this evening over higher
terrain, but otherwise VFR conditions will persist. /JHW

&&

.MARINE...Gentle northwest winds will gradually increase across
the waters this evening. Northwest winds will continue to build
through the weekend. Moderate breezes are expected by Saturday
night with near advisory level winds fanning out south of Cape
Mendocino. Short period seas are expected to climb with the winds,
reaching about 5 to 7 feet at 6 seconds. As high pressure moves
in, northwest winds will continue to build throughout the waters,
most likely reaching near gale force speeds on Monday. Strong,
near gale northwest winds are expected to persist throughout next
week. These winds will bring steep short period seas at 10 to 13
feet at 8 feet in the outer waters with longer fetch and 7 to 9
feet closer to shore. Aside form winds, a small westerly swell
around 3 feet at 13 seconds will persist through early next week.
/JHW

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
None.
&&

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