Marine Weather Net

Cape Flattery to Cape Shoalwater WA between 150 and 250 NM Offshore Forecast


TODAY

N
WINDS
15 - 25
KNOTS

TONIGHT

N
WINDS
15 - 25
KNOTS

MON

N
WINDS
15 - 25
KNOTS

MON NIGHT

N
WINDS
15 - 25
KNOTS

The Marine Weather Forecast In Detail:
PZZ900 Forecast Issued: 853 AM PDT Sun Apr 11 2021

Today...N Winds 15 To 25 Kt. Seas 7 To 12 Ft.
Tonight...N Winds 15 To 25 Kt. Seas Subsiding To 5 To 9 Ft.
Mon...N Winds 15 To 25 Kt. Seas 5 To 8 Ft.
Mon Night...N Winds 15 To 25 Kt. Seas 4 To 7 Ft.
Tue...N Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt. Seas 4 To 6 Ft.
Tue Night...N Winds 10 To 20 Kt. Seas 5 To 6 Ft.
Wed And Wed Night...N To Nw Winds 15 To 20 Kt. Seas 4 To 6 Ft.
Thu...Nw Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 5 To 6 Ft.
Thu Night...N To Nw Winds 5 To 15 Kt. Seas 5 To 7 Ft.
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832 AM PDT Sun Apr 11 2021
Northern and Central Washington Coastal and Inland Waters - PZZ100
Offshore flow will develop today and continue through much of the upcoming week.
Area Forecast Discussion
National Weather Service Seattle WA
815am PDT Sunday April 11 2021

Synopsis
An upper ridge will build over British Columbia through the week ahead as an upper low develops over the Great Basin. A weak upper trough might touch off some showers over the Cascades Monday afternoon. Otherwise, Western Washington will have dry weather with a warming trend in the week ahead.

.SHORT TERM /TODAY THROUGH TUESDAY/...Chilly at daybreak and again Monday morning, but skies are mostly clear and Western Washington will see a warming trend in the week ahead. High temps today will still be cool--in the 50s. There is a little upper trough that will drop south out of British Columbia on Monday so our warming trend starts out pretty slow. Highs will probably struggle to see 60 on Monday and a few showers could develop over the Cascades in the afternoon. I think the sunny forecast for Monday in the Cascades will probably need to be adjusted for some clouds and a chance of showers in the afternoon. That trough moves south through Oregon Monday night and then heigheights start to rise as an upper ridge begins to build into British Columbia. Even as a large upper low develops over the Great Basin in the week ahead, upper ridging over B.C. and Alberta will allow high temps to warm to the upper 50s to mid 60s on Tuesday and then even warmer after that. 19

Long Term - Wednesday Through Saturday
Dry weather expected to continue through the long term with upper level ridging offshore and an upper level low to the southeast of the region centered over eastern Oregon/Idaho. A rex block pattern then looks to develop late in week as the upper level high amplifies over Canada and the low remains situated to the southeast of the region. High temperatures will gradually continue to warm throughout the week, topping out in the upper 60s to low 70s by Friday and Saturday. Overnight lows will be in the upper 30s to mid 40s. 14

Marine
Offshore flow will develop today and continue through much of the upcoming week.

West swell 10-12 feet over the Coastal Waters will subside below 10 feet later today. There will be small craft advisory strength north to northwest winds over the Coastal Waters at times the next few days, mainly late afternoon and evening hours. There will also be small craft advisory strength northerly winds for much of the inland waters Monday afternoon and evening. Schneider

Hydrology
River flooding not expected over the next 7 days.

.SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...Small Craft Advisory until 2pm PDT this afternoon for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm.

Small Craft Advisory until 11am PDT this morning for Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-Grays Harbor Bar.