Monday, February17, 2020
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Marine Weather and Tides
Burley, 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 7:11AMSunset 5:37PM Monday February 17, 2020 4:00 AM PST (12:00 UTC) Moonrise 3:08AMMoonset 12:03PM Illumination 37% Phase: Third Quarter Moon; Moon at 23 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- 246 Am Pst Mon Feb 17 2020
.small craft advisory in effect until 4 am pst early this morning...
Today..SW wind 5 to 15 kt becoming S to 10 kt in the afternoon. Wind waves 2 ft or less. Patchy fog in the morning. A chance of rain in the morning then a slight chance of rain in the afternoon.
Tonight..SE wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less.
Tue..NE wind to 10 kt becoming N 10 to 20 kt in the afternoon. Wind waves 1 ft or less building to 1 to 3 ft in the afternoon.
Tue night..N wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Wed..NE wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Wed night..Variable wind 5 to 15 kt becoming se after midnight. Wind waves 2 ft or less.
Thu..Variable wind to 10 kt becoming light. Wind waves 1 ft or less.
Fri..Light wind. Wind waves less than 1 ft.
PZZ100 246 Am Pst Mon Feb 17 2020
Synopsis for the northern and central washington coastal and inland waters..Winds will start to ease today as high pressure starts to rebuild over the offshore waters, with easterly flow developing by Tuesday.


7 Day Forecast for Marine Location Near Burley, WA
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location: 47.42, -122.62     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 171103 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 303 AM PST Mon Feb 17 2020

SYNOPSIS. An upper level disturbance moves east of the region early this morning, with some lingering showers in the northwest flow aloft. However, an upper level ridge of high pressure begins to move into the Pacific Northwest, ushering in a period of dry conditions through around midweek. The ridge will break down late in the week, with precipitation chances returning to the region Friday.

SHORT TERM /TODAY THROUGH WEDNESDAY/. The active evening continued into the overnight hours this morning, as the strong convergence zones that developed overnight remain across portions of Snohomish and King counties (and to a lesser extent southern Skagit and the mountains of Pierce/Thurston counties). Meanwhile, the Winter Weather Advisory for the Cascades (above 3000 ft) has been extended through 6 AM as another few inches may continue at pass level and above given the latest radar trends. The snowfall over the last 12 hours or so has been pretty impressive with 5 inches at Stevens Pass and 8 inches at Snoqualmie Pass since mid Sunday afternoon. The impact of the convergence zone was particularly evident around the Snoqualmie Pass area, where Northwest Avalanche Center sensors recorded around 10 inches at Alpental at 4350 ft over a similar time period, and nearly 18 inches recorded at around 5500'. The remaining activity associated with the convergence zones should wind down through the early morning hours as showers slide south as the upper level impulse continues to move east into eastern Washington.

Meanwhile, some showers will continue through the morning associated with the northwest flow aloft, but high pressure will continue to spread into the Pacific Northwest as the day goes on. This will bring about a drying trend, though some clouds may linger for much of the area into the afternoon or later.

Expect the upper ridge to be located just offshore by early Tuesday morning, maintaining dry conditions. However, with a relative lack of clouds, expect relatively efficient radiational cooling Monday night, with temperature Tuesday morning plunging back to near or below the freezing mark for much of the lowlands. Some areas of fog/freezing fog may develop as well. However, expect fairly rapid clearing and warming during the day. As the ridge axis shifts onshore by Wednesday, should see some stronger offshore low-level flow develop with less widespread morning fog coverage and temperatures warming in the afternoon into the lower 50s for much of the area after another chilly start. Cullen

LONG TERM /THURSDAY THROUGH SUNDAY/. A weak disturbance begins to approach the region on Thursday as the ridge begins to break down, but guidance remains in fairly good agreement that the biggest impact to our local weather will be the return of mid- level clouds. This approaching system will likely split as it approaches the Washington coast, with the bulk of the energy remaining well south of the area. Despite the thickening cloud deck through the day, temperatures should still likely rebound to near or sightly above seasonal normals. Another disturbance follows Friday and with the ridge already weakening, should be able to make it into Western Washington mostly intact. Therefore, continued to indicate another round of precipitation chances starting Friday. Will need to keep an eye on snow levels, as some weak forced ascent ahead of the main system could bring light precipitation with snow levels down to around 1,000 ft or so ahead of the main area of rain. Regardless, the Cascade passes look to again see some snow into next weekend. Cullen

AVIATION. Current radar still depicts some scattered showers across the area early this morning. Ceilings are mostly VFR as of 10z, with a few pockets of MVFR noted. Satellite is even denoting some areas of clear skies. Through the day today and into tonight, seeing best moisture and therefore best cloud cover in the 4-6k ft and 100-200kft range, so essentially a mix of cumulus and alto type clouds today. Shower activity will also decrease through the day. Could even manage some clearing by the end of this TAF cycle or just beyond it. South winds this morning will shift to the N/NE this evening at 10kts or less.

KSEA . Mainly BKN VFR conditions today, with a trend to more sct-few later in the TAF cycle. A few lingering showers this morning, with chances dwindling thru the day. A wind shift from S to N/NE is expected this evening. Sustained wind speeds will be higher earlier in the day, generally around 10kts or so, with speeds under 10kts expected during and after the wind shift.

Kovacik

MARINE. Morning surface analysis reveals a quieter pattern across western Washington this morning as high pressure tries to build eastward from the Pacific. Current headlines still show small craft advisory winds for most waters through about 4am, before they begin to drop off significantly. Perhaps the only exception will be the central and eastern Strait of Juan de Fuca where model guidance indicates lingering gradients strong enough to support lower-end small craft advisory level winds through about 7am. As such, will have this headline hang on until then. Light winds will then prevail through the remainder of the day today, and with the development of offshore flow by early Tuesday morning, benign marine conditions into at least the middle of the week.

Swells across the offshore waters this morning generally range from 9-11 feet and will continue through the morning hours today. Seas will then gradually subside through the afternoon and evening hours and remain well below 10 feet much of the week. Currently, have small craft advisory for hazardous seas later this morning, becoming confined mostly to the outer coastal waters this afternoon before seas subside and headline subsequently drops.

Kovacik

HYDROLOGY. The flood warning for the White River at R Street continues this morning, as the river remains at or near flood flow due to upstream releases. It is forecast to continue to remain at this level for at least another day or two. Elsewhere, with mostly dry conditions for the next several days, no river flooding is expected through the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Weather Advisory until 6 AM PST early this morning for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties.

PZ . Small Craft Advisory until 5 PM PST 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 10 AM PST 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.

Small Craft Advisory until 7 AM PST this morning 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 early this morning for Admiralty Inlet-Northern Inland Waters Including The San Juan Islands-Puget Sound and Hood Canal-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
46121 11 mi29 min 1.9 38°F 1027.1 hPa35°F
TCMW1 - 9446482 - Tacoma Met, WA 15 mi120 min ESE 6 G 7
TCNW1 - 9446484 - Tacoma, WA 15 mi48 min 36°F 49°F1027.7 hPa
WPOW1 - West Point, WA 19 mi60 min SSE 8.9 G 11 40°F 1026.7 hPa (+1.5)38°F
PTWW1 - 9444900 - Port Townsend, WA 48 mi42 min 43°F 47°F1027.2 hPa

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA9 mi64 minN 010.00 miFair27°F26°F96%1027.3 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi67 minN 010.00 miFair35°F32°F89%1027 hPa
Seattle, Seattle-Tacoma International Airport, WA16 mi67 minSSE 410.00 miOvercast37°F34°F89%1027.5 hPa
Boeing Field - King County International Airport, WA19 mi67 minSSE 810.00 miOvercast38°F34°F86%1027 hPa
Tacoma / McChord Air Force Base, WA19 mi62 minS 510.00 miMostly Cloudy33°F33°F100%1027.7 hPa
Renton Municipal Airport, WA22 mi67 minSSE 310.00 miOvercast39°F35°F86%1027.5 hPa
Fort Lewis / Gray U. S. Army Airfield, WA23 mi62 minN 010.00 miFair31°F31°F100%1027.4 hPa

Link to 5 minute data for KPWT

Wind History from PWT (wind in knots)
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Last 24hrCalmCalmCalmSW3CalmSW3SW5S3SW3SW14
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SW10S7SW4S3CalmS6CalmSW4CalmSW3CalmCalm
1 day agoS7S8S10S11
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S53S4S3S3CalmE3E9Calm
2 days agoW4SW6S3CalmCalmSW7S6S6SW11SW15S12SW11SW13SW7S8SW10SW10S7S9S8S9SW9S10S9

Tide / Current Tables for Wauna, Carr Inlet, Puget Sound, Washington
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Yokeko Point, Deception Pass, Washington Current
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Yokeko Point
Click for Map
Mon -- 12:53 AM PST     -2.31 knots Max Ebb
Mon -- 03:08 AM PST     Moonrise
Mon -- 04:03 AM PST     0.00 knots Slack
Mon -- 06:19 AM PST     1.69 knots Max Flood
Mon -- 07:13 AM PST     Sunrise
Mon -- 08:58 AM PST     -0.00 knots Slack
Mon -- 12:02 PM PST     Moonset
Mon -- 01:08 PM PST     -2.67 knots Max Ebb
Mon -- 04:29 PM PST     0.04 knots Slack
Mon -- 05:36 PM PST     Sunset
Mon -- 07:11 PM PST     2.19 knots Max Flood
Mon -- 11:05 PM PST     -0.05 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.2-2.3-2.1-1.5-0.41.21.71.61.1-0.1-1.5-2.1-2.5-2.7-2.5-2-1.311.82.22.11.81.30.3

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (7,2,3,4)
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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.