Area Forecast Discussion
Issued by NWS Eureka, CA

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FXUS66 KEKA 241023

National Weather Service Eureka CA
323 AM PDT Wed Apr 24 2019

.SYNOPSIS...Warm temperatures can be expected across interior areas
for the remainder of the week, with seasonally mild conditions along
the coast. Very little precipitation is expected this week. A
cooling trend will begin this weekend and continue through early
next week.


.DISCUSSION...Morning low clouds and patchy fog are in place
across the Eel River valley and along the Redwood Coast. These low
clouds will give way late this morning leading to mostly clear
skies area wide except for a few high thin clouds that will
continue to traverse the area. Upper level ridging and surface
high pressure will continue to remain over the area for two more
days. This will lead to warm 850mb temps on the order of 15-19
degrees C which will allow temperatures across the interior to
climb to the upper 80`s and low 90`s. Unfortunately NW winds will
continue along the coast which will maintain the seasonally mild
temperatures in the upper 50`s to low 60`s. Ridging will begin to
weaken Friday and into next week as a series of weak shortwaves
approach the area. This will allow temperatures to begin to cool
back down to near seasonal normals across the interior.

Moisture is limited with this flow regime however strong surface
heating and modest lapse rates may lead to a few weak high based
showers or a thunderstorm across the easternmost mountains each
afternoon through Friday. Even with that being said, most areas will
remain rain free through early next week. /WCI


.AVIATION...Marine stratus is observed along the coast north of Cape
Mendocino, along with passing high clouds over Northwest California
early this morning. Overnight observations showed IFR to LIFR
conditions at both coastal terminals. Statistical and hi-res
guidance suggest VFR conditions will return along the coast by late
morning. Guidance indicates stratus will be possible tonight in the
vicinity of Humboldt Bay, which may impact KACV late this evening
and tonight. VFR conditions are expected to prevail across the
interior through the TAF period.


.MARINE...Gusty northerlies will continue through most
of the forecast period, especially over the outer waters which will
see occasional localized gusts to Gale Force in strength through
Thursday morning. Small Craft Advisories are in place across the
outer waters through mid-morning on Friday. Additionally, a Small
Craft Advisory was issued overnight for the southern inner waters
through early tonight. Winds are expected to weaken early Thursday,
but are forecast to strengthen once again by Thursday night. Winds
are forecast to be around Gale Force in strength by Friday afternoon
over the northern outer waters and portions of the southern outer
waters, which may require a Gale Watch or Warning. Gusty conditions
are forecast to persist over the outer waters through early next
week. Otherwise, a west to northwest mid-period swell will linger
through most of Thursday.


NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory until 9 AM PDT Friday for PZZ470-475.

     Small Craft Advisory until 9 PM PDT this evening for PZZ455.



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