791
FXUS66 KEKA 181111
AFDEKA

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
411 AM PDT Thu Jul 18 2024

.SYNOPSIS...Quiet, dry, and climatologically normal weather is
forecast to continue through the work week. Interior temperatures
creep back up into the triple digits this weekend. There is a slight
chance for thunderstorms Saturday in Trinity county.


&&

.DISCUSSION...seasonably normal temperatures continue today and
Friday as troughing persists aloft. The marine layer has compressed
again overnight, relegating low cloud toward the immediate coast and
bringing patchy fog to the coastal plain. Coastal stratus continues
for the foreseeable future, with a chance of brief clearing each
afternoon before the stratus reforms each night.

Ridging is forecast to build aloft this weekend, potentially
bringing a return of triple-digit temperatures across the interior,
with above normal afternoon temperatures persisting into early next
week. This feature may be accompanied by another push of monsoonal
moisture from the SE and a shortwave trough. Moisture content looks
lower than the monsoonal push last week, and model soundings across
the interior show a relatively capped environment...however lapse
rates aloft are sufficient for convection, should any of these mid-
level parcels get through the cap. So have opted to leave
thunderstorms in for Trinity county...however while there is
potential for convection, confidence is low on whether storms will
develop or not, as well as precisely where and/or when.


&&

.AVIATION...High pressure continues building into the area. The marine
layer is expected to be less deep this morning, with IFR to LIFR
conditions forecast to persist into at least mid morning at the
coastal terminals. Scattering to clearing conditions are expected by
this afternoon with IFR to LIFR conditions returning mid to late
this evening. VFR conditions are anticipated for Ukiah with gusty
northerly winds this afternoon. Gusts could be to 20 knots.


&&

.MARINE...Northerly winds have begun to pick back up through the
marine zones. In the southern outer zone, small craft conditions
have already started as winds increase and cause steeper seas. These
conditions will only increase through the rest of the week and into
the weekend spreading into the northern zones. South of Cape
Mendocino, northerly gusts from 25 to 30 knot are expected with
steep seas from 6 to 7 feet.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 9 AM PDT Friday for PZZ475.

&&

$$

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png