Marine Weather Net

Cape Mendocino to Point Arena CA out 10 NM Marine Forecast


TONIGHT

S
WINDS
5 KNOTS

WED

S
WINDS
5 KNOTS

WED NIGHT

NW
WINDS
5 - 10
KNOTS

THU

NW
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
PZZ455 Forecast Issued: 224 PM PDT Tue Jul 05 2022

Tonight...S Winds 5 Kt...Becoming Sw. Waves W 4 Ft At 10 Seconds. Slight Chance Of Showers.
Wed...S Winds 5 Kt. Waves W 4 Ft At 10 Seconds. Slight Chance Of Rain And Showers.
Wed Night...Nw Winds 5 To 10 Kt. Waves W 3 Ft At 10 Seconds.
Thu...Nw Winds 5 To 10 Kt. Waves W 4 Ft At 10 Seconds.
Thu Night...Nw Winds 5 To 10 Kt. Waves W 4 Ft At 10 Seconds.
Fri...Nw Winds 10 To 15 Kt. Waves Nw 3 Ft At 4 Seconds...And W 2 Ft At 10 Seconds.
Sat...Nw Winds 10 To 20 Kt. Waves Nw 5 Ft At 5 Seconds.
Sun...Nw Winds 10 To 20 Kt. Waves N 6 Ft At 6 Seconds.
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Area Forecast Discussion
National Weather Service Eureka CA
215pm PDT Tuesday July 5 2022

Synopsis
Light precipitation chances will diminish tonight through Wednesday. A deep marine layer is likely to persist along the shore most of the week with low chances of coastal drizzle. Interior locations will gradually warm up and dry out through the remainder of the week. The heat risk in the interior will increase over the weekend and persist into early next week.

Light rain mostly north of Shelter Cove has been steadily diminishing through the day. We recorded 0.35 of an inch rain on ley Island for the calendar day. This broke the old record of 0.22in set in 1948. The total for the month is now 0.74in which is 411% of normal for July. As a percentage of normal this sounds impressive, but our normal is only 0.18in. While not much in absolute terms, this is highly abnormal rainfall for July.

Some coastal drizzle or sprinkles will be possible tonight through Wednesday as an upper trough offshore gradually dissipates and lifts out the northeast. High precipitable water in excess of one inch will also slowly decay. Another plume of high precipitable water will approach toward the end of the week. This may yeild some night/morning coastal drizzle, but should not have major impacts on outdoor activities.

The general trend for temperatures will be warming across the interior through the remainder of the week. Interior heat will begin to build in earnest over the weekend with possible heat risk concerns and triple digit valley highs as early as Sunday and Monday. Models even hint at offshore wind and highs in the 70's for coastal areas Friday and over the weekend. Such an outcome remains uncertain.

Marine
A stalled low pressure system off the coast will continue to weaken through the end of the work week and move east by the weekend. By Thursday, winds will gradually begin to turn north, starting in the southern coastal waters, as the Pacific High regains control of the NE Pacific in the wake of the weakening low pressure system. Northerly winds will reorganize throughout the coastal waters by Friday morning and strengthen to advisory level by Saturday afternoon and look to continue into the middle of next week. Near gale to gale force gusts may occur early next week. The coastal waters’ sea state will respond to the rise in winds by developing into steep and elevated seas by late this weekend. A westerly swell at 4 feet and 10 seconds will continue to weaken throughout the work week.

Fire Weather
Moist weather and below average temperatures will gradually ease through midweek. Winds will be gentle and terrain driven, generally below 15 mph. Gradual warming and drying will bring temperatures back above normal by Friday with minimum RH dropping down to the mid 20s. Even so, overnight RH recoveries will remain good in excess of 80 percent. Triple digit heat with poorer RH recoveries can be expected toward the latter portion of the weekend into early next week.

.EKA WATCHES/WARNINGS/ADVISORIES... CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... None.