Wednesday, November25, 2020
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Marine Weather and Tides
Lake Ketchum, WA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:31AMSunset 4:22PM Wednesday November 25, 2020 3:00 AM PST (11:00 UTC) Moonrise 2:46PMMoonset 2:29AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 days in cycle
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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PZZ134 Admiralty Inlet- 249 Am Pst Wed Nov 25 2020
Today..S wind to 10 kt. Wind waves 1 ft or less. A chance of showers in the morning then a slight chance of showers in the afternoon.
Tonight..SE wind 5 to 15 kt becoming S to 10 kt after midnight. Wind waves 2 ft or less.
Thu..S wind to 10 kt. Wind waves 1 ft or less.
Thu night..SE wind 10 to 20 kt. Wind waves 1 to 3 ft.
Fri..SE wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft.
Fri night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sat..Variable wind to 10 kt becoming light. Wind waves 1 ft or less.
Sun..Light wind becoming se to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 249 Am Pst Wed Nov 25 2020
Synopsis for the northern and central washington coastal and inland waters..Conditions will improve across all waters today through Thursday as the system responsible for yesterday's unsettled conditions pulls away from the region. Large westerly swells between 18-22 feet will continue through much of today before decreasing tonight through Thursday morning. Systems on Friday and again late weekend or early next week will bring brief periods of unsettled conditions back to area waters.


7 Day Forecast for Marine Location Near Lake Ketchum, WA
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location: 48.3, -122.44     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 250500 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 900 PM PST Tue Nov 24 2020

SYNOPSIS. A cold front is advancing east of the Cascades this evening with lingering lowland rain and mountain snow showers continuing through Wednesday. Isolated thunderstorms are also possible, especially near the coast. A ridge will build behind the front bringing with mostly dry weather for Thanksgiving Day. The next weather system will move through late Friday into early Saturday with a ridge building in Saturday night.

UPDATE. Latest observations and analysis reveal the front continuing to advance east across Washington at this hour, with much of the frontal precipitation clearing the Cascades. Meanwhile, strengthening onshore flow as resulted in an area of convergence stretching from around Bremerton northeast across Seattle and onward to near Sultan. High-resolution guidance and observations/radar trends indicate that this convergence zone may remain progressive as opposed to lingering through the night, but will continue to monitor. Elsewhere, convection is becoming increasingly prominent over the coastal waters and near the coast as instability increases. The potential for a few isolated thunderstorms will continue overnight.

Colder air is filtering in to the region behind the front, though. The NOAA PSL Wind Profiler at Forks suggests snow levels dropped from above 4000 ft to around 2000 ft out near the coast this evening. Meanwhile, latest WSDOT reports indicate snow at Stevens Pass while temperatures remain - for now - just warm enough to maintain rain at Snoqualmie. Expect that snow will continue at both passes in showers overnight through tomorrow and the current Winter Weather Advisory will remain in effect for the Cascades above 3000 ft through the morning.

A large west swell is continuing approach the waters this evening, with waves near the coastline expected to build to near 17 to 21 feet by early Wednesday. This will create very dangerous conditions along the coastline, and anyone near the surf zone should keep distance, stay off jetties and rocks, and remain very alert for large waves that could rush up the beaches. A high surf advisory is in effect tonight through Wednesday. Cullen

SHORT TERM /TONIGHT THROUGH FRIDAY/. Scattered showers for Wednesday with the upper trough moving across Western Washington. Additional light snow amounts for the Passes Wednesday afternoon with snow levels around 3000 feet. Precipitation will taper off across the area Wednesday night as ridging begins to build into portions of the area.

Ridging will build into southern areas of Washington on Thanksgiving Day for mainly dry weather. There will be a system tracking into BC just to the north, so some light rain may be possible across the northern tier of W WA and some patchy morning drizzle will be possible across the Puget Sound. Ridging will slide east of the area on Friday as the system to the north of the area slowly approaches. Precipitation Friday will mainly be focused on the northern tier with the system sliding through Friday night. Temperatures through this week in the upper 40s to low 50s. JD

LONG TERM /SATURDAY THROUGH TUESDAY/. The front north of the area will slide through into Saturday morning for a round of rain and light mountain snow. Drier weather by Saturday afternoon as ridging builds into Western Washington. Guidance is consistent for mostly dry weather on Sunday, though an approaching system offshore may bring light precipitation to the coast. A system will approach the area Sunday night into Monday, although there is some uncertainty in the exact track. Ensembles would suggest that there will be at least a decent chance for precipitation Monday as the system moves through with drier weather by Tuesday as ridging builds into the area. Temperatures will be in the upper 40s through early next week. JD

AVIATION. Mix of conditions across Western Washington as a moist but somewhat unstable air mass is generally providing for many areas of VFR conditions. However, convergence between KPWT/KTIW to northeast toward Stevens Pass is maintaining heavier showers and local low MVFR/IFR conditions. Northwesterly flow aloft develops with plenty of showers and a resulting mix of VFR/MVFR conditions through the day Wednesday. Meanwhile, expect the mountains and higher hills to remain obscured in clouds and showers through Wednesday morning.

KSEA . MVFR conditions remain this evening with area of convergence drifting south over the terminal area through 07z. Expect showers and breezy southerly winds to taper off as the night goes on, but ceilings likely remain around 2000 ft through at least Wednesday morning with some possible improvement into the afternoon. Cullen

MARINE. Lingering advisory strength winds will remain this evening but gradually ease. Meanwhile, a large west swell will continue to reach the waters overnight, with seas reaching 16 to 22 ft early Wednesday. A low pressure center will gradually fill as it tracks southeast off the coast on Wednesday, with gusty westerlies remaining generally beyond the coastal waters.

HYDROLOGY. No river flooding is expected through the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Weather Advisory until 10 AM PST Wednesday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties.

High Surf Advisory until 10 PM PST Wednesday for Central Coast- North Coast.

PZ . Small Craft Advisory until 10 AM PST Thursday for Grays Harbor Bar.

Small Craft Advisory until 3 AM PST Thursday 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.

Small Craft Advisory until 2 AM PST Wednesday for Admiralty Inlet-Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 10 AM PST Wednesday for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 2 AM PST Thursday for West Entrance U.S. Waters Strait Of Juan De Fuca.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PBFW1 - Padilla Bay Reserve, WA 11 mi91 min S 6 40°F 1013 hPa39°F
PTWW1 - 9444900 - Port Townsend, WA 21 mi43 min SSE 6 G 7 44°F 49°F1014.5 hPa
SISW1 - Smith Island, WA 21 mi31 min S 14 G 18 45°F 1013.7 hPa41°F
46125 29 mi26 min 43°F 1013.2 hPa41°F
46118 30 mi66 min SSW 16 41°F 1012.2 hPa41°F
FRDW1 - 9449880 - Friday Harbor, WA 35 mi85 min SW 5.1 G 6 44°F 48°F1013.1 hPa
46120 37 mi29 min S 7.8 46°F 1013.1 hPa41°F
46088 - New Dungeness, WA (Hein Bank) 39 mi31 min ESE 3.9 G 5.8 45°F 48°F1013.8 hPa40°F
CHYW1 - 9449424 - Cherry Point, WA 42 mi43 min 1013.2 hPa
CPMW1 42 mi43 min SE 11 G 12 43°F
CPNW1 42 mi43 min SSE 8.9 G 13 43°F
WPOW1 - West Point, WA 44 mi61 min SSW 14 G 15 44°F 1014.2 hPa (+0.5)41°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA12 mi65 minSSE 1010.00 miOvercast44°F39°F85%1014.5 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA12 mi66 minN 010.00 miOvercast41°F39°F93%1013.9 hPa
Arlington Municipal Airport, WA17 mi65 minSE 610.00 miOvercast40°F37°F93%1014.5 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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2 days agoE4CalmE6CalmE8CalmE4SE5CalmN4E6E6E6SE8SE10
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Tide / Current Tables for Stanwood, Washington
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Stanwood
Click for Map
Wed -- 02:15 AM PST     5.12 feet High Tide
Wed -- 02:29 AM PST     Moonset
Wed -- 07:32 AM PST     Sunrise
Wed -- 09:23 AM PST     1.25 feet Low Tide
Wed -- 02:03 PM PST     7.01 feet High Tide
Wed -- 02:45 PM PST     Moonrise
Wed -- 04:20 PM PST     Sunset
Wed -- 10:44 PM PST     0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.94.35.154.643.12.31.61.31.52.74.66.376.86.35.54.43.22.11.30.80.7

Tide / Current Tables for Deception Pass, Washington Current
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Deception Pass
Click for Map
Wed -- 12:14 AM PST     -0.00 knots Slack
Wed -- 02:30 AM PST     Moonset
Wed -- 02:45 AM PST     -5.63 knots Max Ebb
Wed -- 06:06 AM PST     0.00 knots Slack
Wed -- 07:33 AM PST     Sunrise
Wed -- 08:56 AM PST     5.15 knots Max Flood
Wed -- 12:14 PM PST     -0.04 knots Slack
Wed -- 02:46 PM PST     Moonrise
Wed -- 03:13 PM PST     -6.88 knots Max Ebb
Wed -- 04:21 PM PST     Sunset
Wed -- 06:55 PM PST     0.06 knots Slack
Wed -- 09:44 PM PST     5.34 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.5-4.1-5.4-5.6-5.3-4.4-1.83.44.85.24.83.91.6-4.5-6.3-6.9-6.7-6.1-4.80.845.25.34.9

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Seattle/Tacoma, WA
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