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Marine Weather and Tide Forecast for Onalaska, WA

December 7, 2024 4:40 PM PST (00:40 UTC) Change Location
Sunrise 7:41 AM   Sunset 4:25 PM
Moonrise 12:27 PM   Moonset 11:21 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
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PZZ210 Columbia River Bar- 215 Pm Pst Sat Dec 7 2024

.hazardous seas warning in effect from 1 am pst Sunday through Sunday afternoon - .

In the main channel -

General seas - 8 ft building to 11 to 13 ft Sunday evening.

First ebb - Ebb current of 4.41 kt at 854 pm Saturday. Seas 8 ft.

SEcond ebb - Ebb current of 3.52 kt at 1011 am Sunday. Seas 12 to 15 ft.

Third ebb - Ebb current of 3.9 kt at 1004 pm Sunday. Seas 11 to 13 ft.
PZZ200 215 Pm Pst Sat Dec 7 2024

Synopsis for the southern washington and northern oregon coast - Post frontal conditions with a westerly swell. Winds gusting to 30 kt will ease overnight as seas build. Showers to persist through Sunday. Steep seas with a long period swell will increase chances for hazardous seas on Sunday. Note the winds may still be locally high. High pressure begins to build in early next week.

7 Day Forecast for Marine Location Near Onalaska, WA
   
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Tide / Current for Olympia, Washington
  
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Olympia
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Sat -- 03:22 AM PST     0.00 feet Low Tide
Sat -- 07:44 AM PST     Sunrise
Sat -- 10:46 AM PST     16.15 feet High Tide
Sat -- 12:29 PM PST     Moonrise
Sat -- 04:22 PM PST     Sunset
Sat -- 05:17 PM PST     6.74 feet Low Tide
Sat -- 09:23 PM PST     10.40 feet High Tide
Sat -- 11:20 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
        
Sorry tide depth graphs only, please select another station.

Olympia, Washington, Tide feet
12
am
5.5
1
am
3.1
2
am
1.2
3
am
0.1
4
am
0.3
5
am
2
6
am
4.8
7
am
8.1
8
am
11.4
9
am
14.1
10
am
15.8
11
am
16.1
12
pm
15.3
1
pm
13.6
2
pm
11.4
3
pm
9.2
4
pm
7.5
5
pm
6.8
6
pm
7
7
pm
8.1
8
pm
9.4
9
pm
10.3
10
pm
10.3
11
pm
9.4

Tide / Current for Dupont Wharf, Washington
  
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Dupont Wharf
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Sat -- 03:14 AM PST     0.00 feet Low Tide
Sat -- 07:43 AM PST     Sunrise
Sat -- 10:42 AM PST     15.03 feet High Tide
Sat -- 12:28 PM PST     Moonrise
Sat -- 04:21 PM PST     Sunset
Sat -- 05:09 PM PST     6.49 feet Low Tide
Sat -- 09:19 PM PST     9.68 feet High Tide
Sat -- 11:19 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
        
Sorry tide depth graphs only, please select another station.

Dupont Wharf, Washington, Tide feet
12
am
4.9
1
am
2.7
2
am
0.9
3
am
0
4
am
0.4
5
am
2.1
6
am
4.8
7
am
7.9
8
am
10.9
9
am
13.3
10
am
14.7
11
am
15
12
pm
14.2
1
pm
12.6
2
pm
10.5
3
pm
8.5
4
pm
7.1
5
pm
6.5
6
pm
6.8
7
pm
7.8
8
pm
8.9
9
pm
9.6
10
pm
9.5
11
pm
8.6

Area Discussion for Seattle, WA
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FXUS66 KSEW 072238 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 238 PM PST Sat Dec 7 2024

SYNOPSIS
A cold front will continue to sweep across western Washington today, bringing snow levels down to 3000 ft and allowing for significant mountain snow through Sunday. A brief break in the active pattern is expected Monday and Tuesday as high pressure builds overhead. Additional systems will likely bring in more lowland rain and mountain snow towards the latter half of next week.

SHORT TERM /TONIGHT THROUGH TUESDAY/
An upper level trough will continue to dig into the region today, sliding a cold front inland throughout the afternoon and evening. As snow levels drop to near 3000 ft behind the cold front, shower activity and orographically enhanced precipitation paired with onshore flow will allow for significant snowfall accumulation in the mountains. The heaviest snowfall rates will occur where convergence zone showers set up tonight, with current radar already showing enhanced echoes over the central Cascades moving towards Stevens Pass and the central Cascades. The trough will continue to dig southward into the region on Sunday, bringing in another round of widespread shower activity resulting in lowland rain and additional mountain snow.
The highest snowfall totals throughout the course of the weekend will be focused over the central and northern Cascades, where accumulations could reach 1 to 2 feet, including through Stevens Pass. Snoqualmie Pass is on track to see lower snowfall totals of 6 to 10 inches over the weekend. Accumulations southward towards Mount Rainier are on track to top out at 6 to 10 inches.

Active weather will come to an end by Sunday night as surface high pressure and an associated upper level ridge settle into the region. The first half of next week will see a period of dry conditions with some sun breaks through the clouds each afternoon.
Monday night looks to be the coldest night of the period, with overnight lows bottoming out near or below freezing across most of the area early Tuesday morning. Tuesday is on track to be the coldest day of the period, with high temperatures several degrees below normal in the low to mid 40s across the lowlands.

LONG TERM /WEDNESDAY THROUGH SATURDAY/
Forecast models have come into slightly better agreement over potential for active weather to return by the middle of next week. Ensemble forecasts continue to differ on how long the upper level ridge will persist over the region, through solutions generally weaken the ridge through the end of the week with a return to troughing by next weekend. Operational runs indicate several shortwaves that may move through the ridge, bringing several chances for additional rounds of rain, breezy conditions, and mountain snow.

15

AVIATION
Westerly flow aloft late today and tonight will become northwesterly on Sunday as an upper trough and associated frontal system moves onshore. A mixed bag of MVFR and low VFR ceilings in post-frontal showers will briefly become mostly VFR around 00Z except in and around a convergence zone in the vicinity of KPAE extending into the Cascades. Ceilings will deteriorate to MVFR areawide once again by around 06Z with areas of IFR early Sunday morning as the second of a pair of frontal system moves onshore.
These conditions will persist through much of Sunday. Gusty S/SW surface winds will continue into Sunday morning before easing.

KSEA...A brief period of VFR ceilings are expected this afternoon as a convergence zone forms and stays well north of the terminal. A secondary frontal system moving into the area will bring ceilings back down to solid MVFR in increasing rain overnight. There's a least a 40-50% chance of a some IFR ceilings between 12Z-18Z Sunday as the front drags across the area. S/SW surface winds 10-15 gusting 20-25 knots will continue into Sunday A.M. before easing.

27

MARINE
The second of a pair of frontal systems will cross the waters tonight. Surface high pressure will rebuild across the waters Sunday afternoon and move inland Sunday night. The ridge will remain over the waters into Tuesday. Another front will reach the area Wednesday night. Small craft advisory conditions are expected across the coastal and most of the inland waters with the front tonight.

Seas around 10 feet today building to 14 to 19 feet tonight.
Seas subsiding to 12 to 14 feet Sunday night and to below 10 feet Monday.

Another round of headlines are expected by midweek with the next front.

27

HYDROLOGY
Systems moving through the area this weekend will bring significant precipitation to the area especially the mountains. This will result in rises on rivers across the region.
While the precipitation forecast continues to fluctuate a bit run to run, 2 to 3 inches of rainfall appears most likely result.
However, high end potential amounts would reach into the 4 to 5 inch range across portions of the Olympics and the northern and central Cascades. Current forecast for the Skokomish has it cresting slightly below flood stage Sunday morning. A brief period of drier conditions will allow for rivers to recede early next week, but another round of hydrologically significant precipitation may follow later next week.

Bower/Felton

SEW WATCHES/WARNINGS/ADVISORIES
WA...Flood Watch from 4 PM PST this afternoon through Sunday evening for Hood Canal Area-Lower Chehalis Valley Area-Olympics.

Winter Storm Warning from 4 PM this afternoon to 4 PM PST Sunday for West Slopes North Cascades and Passes-West Slopes North Central Cascades and Passes.

Winter Weather Advisory from 4 PM this afternoon to 4 PM PST Sunday for West Slopes South Central Cascades and Passes.

PZ...Small Craft Advisory until 6 PM PST Sunday for Grays Harbor Bar- West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until midnight PST tonight for Central U.S.
Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 4 AM PST Sunday for Puget Sound and Hood Canal.

Small Craft Advisory until 6 AM PST Monday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
LOPW1 - 9440422 - Longview, WA 33 mi53 min 45°F30.15
KLMW1 38 mi53 min 30.15


Wind History for Tacoma MET, WA
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KCLS CHEHALISCENTRALIA,WA 22 sm25 mincalm10 smClear46°F46°F100%30.14

Weather Map
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GEOS Local Image of Pacific Northwest  
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Portland, OR,





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