Marine Weather Net

Cape Flattery to Cape Shoalwater WA between 60 and 150 NM Offshore Forecast


TONIGHT

NNW
WINDS
15 - 25
KNOTS

TUE

NW
WINDS
15 - 25
KNOTS

TUE NIGHT

NW
WINDS
10 - 20
KNOTS

WED

VARIABLE
WINDS
5 - 15
KNOTS

The Marine Weather Forecast In Detail:
PZZ800 Forecast Issued: 825 PM PDT Mon Mar 18 2024

Tonight...N To Nw Winds 15 To 25 Kt. Seas 6 To 9 Ft.
Tue...Nw Winds 15 To 25 Kt. Seas 7 To 9 Ft.
Tue Night...Nw Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 6 To 8 Ft.
Wed...Variable Winds 5 To 15 Kt, Diminishing To Less Than 10 Kt. Seas 5 To 6 Ft.
Wed Night...Variable Winds Less Than 10 Kt. Seas 5 To 6 Ft.
Thu...Variable Winds Less Than 5 Kt, Becoming E To Se. Seas 5 To 7 Ft.
Thu Night...Se Winds 5 To 10 Kt, Becoming S To Se 10 To 15 Kt. Seas 6 To 7 Ft.
Fri...E To Se Winds 10 To 15 Kt, Becoming 10 To 20 Kt. Seas 6 To 7 Ft.
Fri Night...E To Se Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 6 To 8 Ft.
Sat...E To Se Winds 5 To 15 Kt, Becoming Variable. Seas 6 To 9 Ft.
Sat Night...N Winds Less Than 10 Kt. Seas 8 To 11 Ft.
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Area Forecast Discussion
National Weather Service Seattle WA
806pm PDT Monday Mar 18 2024

Synopsis
Upper ridging will continue into Tuesday for dry, warmer weather. A subtle trough will move through later Wednesday into Thursday for increasing precipitation chances. Troughing will develop further next weekend for cooler temperatures and precipitation.

Short Term - Tonight Through Thursday
Clear skies this afternoon with temperatures generally ranging in the 60s for much of the area. Another uptick in onshore flow tonight into Tuesday will result in another period of low stratus or fog Tuesday morning. Fog may be dense in areas during this period before clearing late morning for additional sunshine. Temperatures on Tuesday will be similar in the 60s, although cooler temperatures likely along the coast due to the onshore flow.

The upper ridge will slowly begin to weaken on Wednesday with subtle troughing sliding across western Washington. Precipitation potential increases Wednesday, especially later in the day, and continuing into Thursday. Quantitative Precipitation Forecast amounts will generally be light for most areas, heaviest in the Cascades. Snow levels will range 4000-5000 feet Wednesday through Thursday. Temperatures will fall to near normal Wednesday into Thursday with highs in the low to mid 50s.

Long Term - Friday Through Monday
An upper low will move towards OR/CA on Friday with continued weakening ridging across the interior West. This upper low will result in continued precipitation chances Friday into Saturday. Uncertainty increases in ensemble guidance in regards to the track of the upper low, but a consistent pattern is noted with further troughing developing over the Pacific Northwest. Cooler temperatures are expected along with continued precipitation chances into early next week across the area. JD

Marine
Onshore flow pattern continues with weak surface troughing along the coast Tuesday into Wednesday and sub-advisory conditions, aside from brief wind gusts to near 20 kt across the far southern waters of the Strait of Georgia tonight. Seas less than 10 feet through the week. A splitting frontal system looks to move across the area waters Friday with the next main chances for advisory- strength winds Friday into Saturday.

Davis

Hydrology
No river flooding is expected over the next 7 days.

NOAA Seattle WA Office: Watches - Warnings - Advisories
WA...None. PZ...None.