814
FXUS66 KEKA 212215
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
315 PM PDT Tue May 21 2024

.SYNOPSIS...Slightly below normal interior temperatures are
expected through the weekend. Gusty northwest winds will persist
today and diminish some on Wednesday. At the coast low clouds, fog
and drizzle are expected to return tonight and will be
intermittent through the week.


&&

.DISCUSSION...An upper level low in British Columbia is dropping
southeast into the Pacific Northwest. This is expected to bring
fog and low clouds to the coast tonight. This trailing frontal
boundary is expected to be dry this far south, but it may provide
some lift to the marine layer and bring some drizzle to the
coast. Wednesday this will bring cooler temperatures to the inland
area and the coastal stratus may struggle to clear out. Highs in
the interior are expected to only be in the low 70s while the
coast may see highs only in the mid 50s. Winds will diminish on
Wednesday as well, especially in the north.

Thursday and Friday is expected to see a slight rebound in the
interior temperatures with highs in the mid to upper 70s. Some
clouds are expected to linger at the coast. The offshore flow
isn`t showing a very strong signal, but with the moderately cool
temperatures aloft this should weaken the inversion and that may
allow some clearing each afternoon. Saturday another upper level
low drops down from the northwest bringing cooler inland
temperatures, highs only in the low to mid 70s in the interior.
There isn`t a strong signal for offshore flow so stratus is
expected to persist. The inversion may be weak enough for some
clearing at the coast during the day, but its not expected to last
through the night. Sunday and Monday the NBM is showing
temperatures warming back into the 80s in the interior. MKK

&&

.AVIATION...Mostly SKC and unlimited Vis prevailed across the
region and TAF sites today; the exception was some scattered
stratus reported at ACV...and a very brief bout of BKN010 due to
sea spray. Gusty northerly winds (especially at CEC) were slower
to develop today and were not as robust as the previous day. A
plethora of mixed clouds were situated well off the coast, and
will most likely slide onshore through the night. The clouds will
be enhanced by the tail-end of a cold front expected to impact the
coastal terminals Wednesday morning. ACV and CEC are expected to
experience MVFR/IFR conditions with the possibility of light
drizzle. Above ground winds will increase near the ACV airport
producing the threat of marginal LLWS. Following the unremarkable
frontal passage, conditions should improve to VFR and coastal
surface winds will increase Wednesday afternoon. /TAA

&&

.MARINE...The steep waves and strong winds have started to
diminish this afternoon and these will continue to diminish
tonight and Wednesday morning. These will increase again Wednesday
afternoon. They are not expected to be as strong as they have been
the last few days, but gale force gusts remain possible south of
Cape Mendocino. These stronger winds are expected to persist into
Thursday. At this point it is uncertain if a Gale warning will be
need in the southern waters. It looks like it will be marginal in
most areas aside from immediately south of Cape MEndocino. Friday
and Saturday models are showing winds dropping to 15 to 20 kt and
are expected to continue to drip Sunday and Monday. MKK

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 9 PM PDT this evening for PZZ450.

     Hazardous Seas Warning until 9 PM PDT this evening for
     PZZ455.

     Small Craft Advisory until 3 AM PDT Wednesday for PZZ470.

     Gale Warning until 9 PM PDT this evening for PZZ475.

&&

$$

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