Area Forecast Discussion
Issued by NWS Eureka, CA

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FXUS66 KEKA 181059

National Weather Service Eureka CA
359 AM PDT Sun Aug 18 2019

.SYNOPSIS...Seasonable temperatures over the interior will give
way to warmer conditions during the second half of the upcoming
work week. Otherwise, dry weather will prevail across the region
through the next seven days.


.DISCUSSION...An upper-level trough is forecast to develop over
the Gulf of Alaska and NERN PAC during the next couple of days.
That feature will aid in seasonable afternoon highs across the
interior through Tuesday. Thereafter, the large-scale flow regime
becomes more zonal during the second half of the upcoming work
week, which will support a warming trend across the interior.
Elsewhere, marine stratus has become widespread along the coast
during early Sunday morning. Model guidance shows nocturnal
stratus development will continue through at least early week,
with localized afternoon clearing occurring along the coast. In
addition, the marine layer may deepen sufficiently for patchy
drizzle in the vicinity of Humboldt Bay during Sunday night.


.AVIATION...The marine layer will become more influential over
the next couple of days as a couple of upper level short waves
promote some depth expansion. The result will be more low clouds
and fog along the coast which is already evident early this
morning at both CEC and ACV. Although some clearing and vfr
conditions are still expected later today...Monday may see much
more limited improvement along with possible early morning drizzle
hampering vsbys. Forecast models do show the marine layer
retreating on Tuesday with a return to a more extended vfr regime
into Wed. Interior areas will continue to see widespread vfr.


.MARINE...The gusty northerlies that were observed over the last
few days are diminishing while wind driven seas subside as well.
Only SCA`s are in effect mainly in response to the residual
elevated seas. By Monday the entire wind and sea state should be
headline free as much lighter northerlies persist through mid
week...accompanied by a longer period sw small swell.


     6 PM PDT this evening for PZZ450-455.

     Small Craft Advisory until 11 PM PDT this evening for PZZ470-475.



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