Marine Weather Net

Point St. George to Point Arena between 150 and 250 NM Offshore Forecast


TODAY

NNE
WINDS
5 - 15
KNOTS

TONIGHT

NNE
WINDS
5 - 15
KNOTS

SUN

NNE
WINDS
5 - 15
KNOTS

SUN NIGHT

N
WINDS
5 - 15
KNOTS

The Marine Weather Forecast In Detail:
PZZ920 Forecast Issued: 232 AM PDT Sat Oct 05 2024

Today...N To Ne Winds 5 To 15 Kt. Seas 4 To 5 Ft.
Tonight...N To Ne Winds 5 To 15 Kt. Seas 4 To 5 Ft.
Sun...N To Ne Winds 5 To 15 Kt, Becoming Variable. Seas 4 To 5 Ft.
Sun Night...N Winds 5 To 15 Kt, Becoming Variable. Seas 4 To 7 Ft.
Mon...W To Nw Winds 5 To 15 Kt, Becoming W To Sw. Seas 5 To 8 Ft.
Mon Night...W Winds 5 To 10 Kt. Seas 6 To 8 Ft.
Tue...N To Nw Winds Less Than 10 Kt. Seas 6 To 8 Ft.
Tue Night...Nw Winds Less Than 10 Kt. Seas 7 To 8 Ft.
Wed...W To Nw Winds 5 To 15 Kt. Seas 7 To 8 Ft.
Wed Night...N Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 7 To 8 Ft.
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Area Forecast Discussion
National Weather Service Eureka CA
431am PDT Sat Oct 5 2024

Synopsis
Temperatures increase today in the interior as high pressure builds back in. A gradual cooling trend begins early next week.

A weak area of high pressure has built back in, bringing yet another warm day to the interior. Most interior valleys are likely to see mid to high 90s, with triple digits possible in southern Mendocino County and southern Lake County. An influx of mid-level moisture from the southwest this afternoon into Sunday will bring spotty cloudiness to Mendocino and Lake Counties. An especially poofy cloud could threaten a few sprinkles, but very dry low levels will likely evaporate any rain that does fall.

Widespread coastal stratus continues to remain evasive as weak offshore flow continues. This is likely to continue in the coming days, though spotty areas of fog in the morning hours is still possible.

Temperatures will begin to trend downward in the interior Monday as high pressure weakens. Most interior valleys are forecast to dip into the 80s by Tuesday or Wednesday. An upper-level trough moving through the Pacific Northwest late week will bring the potential for rain to the area. The latest NBM has a roughly 50 percent chance of wetting rain (>0.1 in) in Del Norte and Humboldt Counties, and 20-30% in Trinity, Mendocino, and Lake Counties. Uncertainty on timing, intensity, and position of this system is still high and will become clearer in the coming days. JB

Marine
Northerly winds will persist through mid next week as the thermal trough remains strong over the interior in response to continued warm temperatures over the western states. However, with a broad trough over the eastern Pacific, the pressure gradient will remain not particularly tight over the waters limiting the strength of the northerly winds. Gusts to around 25 kt will be possible over the southern outer waters through the weekend and into early next week while elsewhere winds will be lighter. This will be particularly true in the inner water zones with the lightest winds inside of 10 nautical miles north of Cape Mendocino. Seas will be highest south of the Cape where the winds are the strongest. A building northwesterly swell on Monday may push the overall sea state to a height requiring small craft advisories. /RPA

Fire Weather
Warm and dry conditions continue this weekend, with poor to moderate RH recoveries. Low RH combined with afternoon breezes could promote locally elevated fire conditions. Afternoon breezes will be slightly higher Monday, particularly in Mendocino and Lake Counties, with northwesterly winds peaking around 25 mph on the ridges. Conditions improve mid to late week as temperatures return to near-seasonal normals and RHs improve. JB

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