Friday, January24, 2020
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Marine Weather and Tides
Chico, WA

Version 3.4
NOTICE
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 7:45AMSunset 5:00PM Friday January 24, 2020 8:21 AM PST (16:21 UTC) Moonrise 7:59AMMoonset 4:50PM Illumination 0% Phase: New Moon; Moon at 29 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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PZZ135 Puget Sound And Hood Canal- 229 Am Pst Fri Jan 24 2020
.small craft advisory in effect through this afternoon...
Today..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely.
Tonight..S wind 10 to 20 kt. Wind waves 1 to 3 ft. A chance of showers in the evening then a chance of rain after midnight.
Sat..SE wind 5 to 15 kt becoming S in the afternoon. Wind waves 1 to 3 ft. Rain likely.
Sat night..S wind to 10 kt becoming variable after midnight. Wind waves 2 ft or less.
Sun..SW wind 20 to 30 kt becoming S 15 to 25 kt in the afternoon. Wind waves 4 to 6 ft.
Sun night..S wind 15 to 25 kt. Wind waves 1 ft or less.
Mon..S wind 5 to 15 kt easing to 10 kt. Wind waves 1 ft or less.
Tue..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 229 Am Pst Fri Jan 24 2020
Synopsis for the northern and central washington coastal and inland waters..A cold front will push through this morning. Active weather will continue into early next week as additional weather systems move across the area. A strong low could track north just off the coast Sunday with gales possible.


7 Day Forecast for Marine Location Near Chico, WA
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location: 47.62, -122.69     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 241122 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 320 AM PST Fri Jan 24 2020

SYNOPSIS. Active weather will continue over the next week as a series of weather systems move across the area.

SHORT TERM /TODAY THROUGH SUNDAY/. Current radar and satellite clearly show negatively tilted front moving through W WA this morning with rainfall tapering off over southwestern portions of the CWA As this front continues to lift northeastward. could start to see some locations emerge with dry conditions However. looking westward on current IR satellite shows some clouds starting to develop within the approaching upper level trough As such. model progs look to be on track with showers developing in the wake of this passing front as this upper trough starts to push into the area with ample low level moisture to work with. As this activity transitions into showers . models remain consistent that overall action will trend downward throughout the day. This will help in getting current hydro situation to behave. For further details on that . please refer to the Hydrology section below. Will see snow levels gradually fall through the day but are expected to remain above 4000 ft for most locations. Portions of the North Cascades will fall between 3500-4000 ft and as such some snow accumulations will be possible there . but none that would require any headlines at this time.

Next frontal system looks to make it to the coast very late tonight/very early Saturday morning bringing a quick shot of rain that starts wrapping up by early afternoon. As has been the case throughout this active period . the brief respites in the squishiness are measured more in hours than days . and sure enough by Saturday evening a surface low creeps up the coast from OR to bring yet another batch of rain . but with the potential for some winds this time as well. Models still waffling a bit on wind speeds associated with this system . as previous model runs looked stronger . but feel safe in saying probably breezy to locally windy conditions for the usual wind favored locations such as the coast and north interior. Unless some consistency starts to emerge . pretty low confidence on if these winds will spread to other portions of the CWA. This surface low pushes north of the area by late Sunday morning. A narrow window of diminished shower activity or even possibly dry conditions exists thereafter but models disagree as to how long. The GFS does not bring in the next front until Sunday evening and thus providing a quiet 6-9 hour window while the ECMWF suggests that if there is any break . if one were to blink they would miss it before the next front comes in Sunday afternoon. More inclined to lean toward the ECMWF solution if for no other reason than that a mere 6-9 hour break just seems patronizing. 18

LONG TERM /MONDAY THROUGH THURSDAY/. The aforementioned front starts to dissipate by late Monday morning but deterministic models paint two very different pictures of the next system. The GFS brings the next front up from OR and lifts it into W WA Monday night and brings the associated upper level low in hot on the heels of said front . making for wet conditions persisting into Tuesday evening. The ECMWF actually keeps the worst of the precip down in OR and while the area still sees precip . it wraps up by Tuesday afternoon. Given this initial discrepancy . while models fall a bit more in line with the general pattern . a brief upper level ridge moving quickly through the area shockingly followed by yet another frontal system . the timing is off Ultimately. probably better off just saying that the extended looks to remain active with the current essentially wet pattern persisting for the remainder of the forecast period. 18

AVIATION. Southwest flow aloft will transition westerly on Friday as an upper level trough moves through. A cold front will slide eastward into this morning. The air mass is moist and stable. The air mass will be unstable Friday afternoon. Steady rain in places this morning will transition to showers by this morning. VFR for most spots will be MVFR for most of the morning with low clouds. IFR for PWT. VFR cigs for most by this afternoon. South winds 7 to 12 knots through this afternoon. A few gusts up to 19 knots this morning.

KSEA . VFR cigs will transition to MVFR cigs for much of this morning. VFR cigs this afternoon as lower clouds scatter. Scattered showers by late this morning. Winds 7 to 12 knots with a few gusts to 19 knots through this afternoon. JD

MARINE. Small Craft Advisory level winds for most waters through today as a front moves through this morning. Winds will be elevated for the coastal waters this evening into tonight for SCA winds. A front will slide northward late tonight through Saturday for SCA winds for most waters. Multiple weather systems through the weekend for more marine headlines. A strong surface low may move through on Sunday for possible gales across the coastal waters and northern inland areas.

Minor tidal overflow possible for the Admiralty Inlet and San Juan Islands through the morning. JD

HYDROLOGY. Hydrologically significant precipitation has largely ended as steady rains have transitioned to showers. Snow levels have also begun to fall and should come down to 4000-4500 feet today.

Three rivers are currently flooding - the Stillaguamish, the Satsop, and the Skokomish. All three have recently crested and will be gradually receding today but flooding will continue for awhile.

A few other rivers flowing off the Cascades, such as the Nooksack and the Chehalis, are still rising and could reach flood stage later today or tonight.

The weather pattern will remain wet into next week as a series of weather systems cross the area. Rivers will continue to run high and there is the possibility of additional river flooding some time later next week.

Lastly, an elevated threat of landslides will continue today due to the recent heavy rains and saturated soils. Schneider

SEW WATCHES/WARNINGS/ADVISORIES. WA . Flood Watch through this afternoon for Bellevue and Vicinity- Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties- Central Coast-East Puget Sound Lowlands-Everett and Vicinity-Lower Chehalis Valley Area-Olympics-Seattle and Vicinity-Southwest Interior-Tacoma Area-Western Skagit County-Western Whatcom County.

Coastal Flood Advisory until 7 AM PST this morning for Admiralty Inlet Area-San Juan County.

PZ . Small Craft Advisory until 4 AM PST Saturday for Grays Harbor Bar.

Small Craft Advisory until 11 AM PST Saturday 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 6 AM PST early this morning for East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from midnight tonight to 11 AM PST Saturday for Admiralty Inlet-East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 4 PM PST this afternoon for Admiralty Inlet-Northern Inland Waters Including The San Juan Islands- Puget Sound and Hood Canal.

Small Craft Advisory until 6 PM PST this evening 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
WPOW1 - West Point, WA 14 mi82 min S 22 G 25 51°F 1011.5 hPa (+1.4)48°F
TCMW1 - 9446482 - Tacoma Met, WA 28 mi58 min SSE 4.1 G 6
TCNW1 - 9446484 - Tacoma, WA 28 mi58 min 49°F 49°F1012.9 hPa
PTWW1 - 9444900 - Port Townsend, WA 34 mi58 min SE 5.1 G 8 49°F 47°F1010.3 hPa
SISW1 - Smith Island, WA 49 mi32 min SE 12 G 15 49°F 1009.6 hPa45°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA11 mi26 minS 77.00 miLight Rain48°F46°F96%1012.1 hPa
Boeing Field - King County International Airport, WA22 mi29 minSSE 810.00 miOvercast49°F46°F90%1012.2 hPa
Seattle, Seattle-Tacoma International Airport, WA24 mi29 minS 810.00 miOvercast49°F46°F90%1012.8 hPa

Link to 5 minute data for KPWT

Wind History from PWT (wind in knots)
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Tide / Current Tables for Tracyton, Dyes Inlet, Washington
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Tracyton
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Fri -- 06:14 AM PST     13.15 feet High Tide
Fri -- 07:46 AM PST     Sunrise
Fri -- 07:58 AM PST     Moonrise
Fri -- 11:51 AM PST     6.96 feet Low Tide
Fri -- 01:44 PM PST     New Moon
Fri -- 04:04 PM PST     11.14 feet High Tide
Fri -- 04:50 PM PST     Moonset
Fri -- 04:58 PM PST     Sunset
Fri -- 11:41 PM PST     -1.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.81.24.27.510.312.313.112.911.7108.37.377.6910.511.110.89.77.95.42.80.4-1.1

Tide / Current Tables for Blake Island, SW of, Washington Current
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Blake Island
Click for Map
Fri -- 04:46 AM PST     -0.00 knots Slack
Fri -- 07:46 AM PST     Sunrise
Fri -- 07:58 AM PST     Moonrise
Fri -- 08:23 AM PST     -0.41 knots Max Ebb
Fri -- 09:23 AM PST     0.00 knots Slack
Fri -- 11:24 AM PST     0.13 knots Max Flood
Fri -- 01:44 PM PST     New Moon
Fri -- 02:31 PM PST     -0.00 knots Slack
Fri -- 04:50 PM PST     Moonset
Fri -- 04:59 PM PST     Sunset
Fri -- 07:41 PM PST     -0.71 knots Max Ebb
Fri -- 08:50 PM PST     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.40.30.1-0-0.2-0.3-0.4-0.20.10.10.10.10-0.1-0.2-0.4-0.6-0.7-0.600.30.5

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
Wind Forecast for Seattle, WA (11,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.