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000
FXUS66 KEKA 091303
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
603 AM PDT Sun May 9 2021

.SYNOPSIS...Today into next week increasing heat is expected to
occur across interior valleys while coastal areas remain
seasonable but a little warmer than the last few days. Gusty north
winds are expected for many areas, but especially at the coast
through Monday.

&&

.DISCUSSION...High pressure persists over the eastern Pacific this
morning. A shortwave moving down the east side has brought
some subtle changes. Some stratus has developed around Humboldt
and along the Eel River and inland temperatures will be slightly
cooler. Northerly winds are expected to increase quickly again
this morning and will be similar to yesterday. This should help to
quickly break up the stratus. Tonight and Sunday high pressure
rapidly builds into the area and significantly warmer temperatures
are expected on Monday in the inland areas with highs in the mid
to upper 80s and rh dropping into the teens. Winds will start to
diminish on Monday, but will remain breezy. Tuesday and Wednesday
the warming and drying trend continues with highs climbing to
around 90 in most inland valleys. RH away from the coast will
remain in the teens. Offshore flow is expected to keep coastal
areas mostly clear, but temperatures will remain seasonable with
the breezy north winds each afternoon.

Wednesday the pressure gradient continues to relax and
temperatures remain warm. This has the potential to be the warmest
day along the coast if skies remain clear. Thursday the ridge
axis starts to move onshore and this will likely allow more marine
clouds to return and will bring higher RH and slightly cooler
temperatures to the near coastal areas. Friday or the weekend the
ensembles are generally showing a slight cooling trend as an
upper level trough approaches the coast. There is a small chance
for some precipitation as well. MKK

&&

.AVIATION...A steep gradient over the northern california coast
keeps gusty north winds prevailing at terminals in the CWA.  KCEC
may get slight reduction in visibility again throughout the day via
haze or mist, keeping flight conditions to MVFR for the TAF period
with some stints of VFR. KACV and KUKI will have prevailing
northerly winds with gusts around 20 to 25 kts. Winds will ease a
bit Monday as the pressure gradient loosens and moves further
offshore. /EYS

&&

.MARINE...Gusty northerly winds and steep northerly seas continue
across the waters this morning. Small craft advisories are in
place for the Northern waters due to hazardous conditions just shy
of Gale but will build this afternoon, joining the southern
waters in GL.W. Northerly winds are expected to continue for much
of the waters for the foreseeable future, with near gales to gales
continuing well into the early week. /EYS

&&

.FIRE WEATHER...Breezy north to northeast winds persist on the
ridges again this morning. Most areas have seen decent RH
recoveries, however southern Lake County is seeing some poor
recoveries at higher elevations. This afternoon winds will become
more northerly and will be elevated. Afternoon RH is expected to
only drop to around 20 percent this afternoon. Winds of 15 to 20
mph are expected this afternoon with gusts to 30 mph. This will be
near red flag warning criteria, however live fuels remain just
moist enough where the issuance of a red flag warning isn`t quite
needed at this time.

Another round of offshore winds will likely develop tonight
through Tuesday morning and be more expansive across the ridge
tops of the Northwest California. Winds will diminish some
Tuesday morning, but RH will likely be lower. Thus, again, no red
flags are anticipated and a simple headline in the fire weather
forecast will cover the elevated fire weather conditions. Very dry
and hot conditions for May will persist through much of the next
work week. Late in the week and next weekend some cooling is
possible. MKK/RPA

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 3 PM PDT this afternoon for PZZ450-
     470.

     Gale Warning from 3 PM this afternoon to 9 PM PDT Monday for
     PZZ450.

     Gale Warning from 3 PM this afternoon to midnight PDT Tuesday
     night for PZZ470.

     Gale Warning until 5 PM PDT Monday for PZZ455.

     Gale Warning until noon PDT Tuesday for PZZ475.

&&

$$

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