Bootjack, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

054
FXUS66 KEKA 190715
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
1215 AM PDT Fri Jun 19 2026

.SYNOPSIS...Temperatures will continue to cool today with
marine influence deepening and pushing inland. Scattered dry
thunderstorms will impact high terrain locations over the interior
Friday.


&&


.KEY MESSAGES...

- Temperatures ease through Saturday with only minor HeatRisk

- Slight chance of dry thunderstorms over higher terrain of northern
Humboldt and Trinity counties this morning.

- A lifting but persistent marine layer at the coast.

- Warming trend returns next week.


&&

.DISCUSSION...An upper level trough approaching the area will
continue to bring cooler and more moist conditions Friday and
Saturday. Most interior valleys are expected to have highs in the
mid 70s to mid 80s with the hottest valley locations barely getting
over 90. Increasing marine influence will also keep RH higher (over
30 for driest valleys). The trough will cross inland today and bring
more cloud cover to the region.

The trough will also help increase upper level instability. Combined
with a moisture surge up the Sacramento Valley, there is potential
for thunderstorms as early as sunrise this morning. High resolution
models show a weak convective signature, but chances of actual
lightning remain low to moderate at best (15%). Models generally
focus convection over northern Humboldt and Trinity counties though
just a few want to put storms as far south and west as the King
Range. Uncertainty remains high, as many model soundings show
moisture too high in the unstable layer with weak forcing, making
lightning potential questionable. That said, these setups are
typically not well resolved by models. In general, potential for
thunderstorms is generally 20 to 30 percent, with the highest
potentials for Trinity County (particularly the NE portion of the
county).

Otherwise cool conditions will bottom out on Saturday with gradual
warming and non-impactful weather next week. Temperatures are
anticipated to return to the 90s with only moderate HeatRisk
expected. /JHW


&&

.AVIATION...A persistent marine layer continues to blanket the
coast early this morning causing LIFR/IFR conditions. Approaching
instability from an upper level trough continues to deepen the
coastal stratus. Another intrusion of low ceilings into the Russian
River Valley are expected this morning. Increasing instability will
most likely help further lift ceilings today.
/JHW


&&

.MARINE...Winds have generally dropped to gentle or even calm across
all waters. Moderately steep short period seas are gradually falling
and will generally fall below 6 feet Friday morning. Beyond the wind
waves, there is a minor but persistent mid period northwest swell
around 4 feet that may be more obvious with the calmer seas. North
winds will gradually increase again this weekend with near gale
force gusts in the outer waters by Sunday afternoon. These winds
will pull closer to shore brining steep short period seas to all
waters through early next week. /JHW


&&

.FIRE WEATHER...


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Red Flag Warning from 8 AM this morning to 7 PM PDT this
     evening for CAZ403-406-409-410.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 5 AM PDT early this morning for
     PZZ470.

&&

$$

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