Tuesday, August11, 2020
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Marine Weather and Tides
Wollochet, 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 6:01AMSunset 8:29PM Tuesday August 11, 2020 4:56 PM PDT (23:56 UTC) Moonrise 11:10PMMoonset 1:16PM Illumination 44% 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- 204 Pm Pdt Tue Aug 11 2020
Tonight..NW wind 10 to 20 kt becoming se 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of showers.
Wed..S wind to 10 kt. Wind waves 1 ft or less.
Wed night..N wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..NE wind 5 to 15 kt easing to 10 kt after midnight. Wind waves 2 ft or less.
Fri..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Fri night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Sat..N wind to 10 kt. Wind waves 1 ft or less.
Sun..NW wind to 10 kt. Wind waves 1 ft or less.
PZZ100 204 Pm Pdt Tue Aug 11 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will persist through Thursday before high pressure returns for the end of the week into the weekend. Strong afternoon and evening pushes are likely through the strait of juan de fuca. A brief period of gale force winds is likely later this afternoon and evening.


7 Day Forecast for Marine Location Near Wollochet, WA
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location: 47.27, -122.55     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 112116 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 216 PM PDT Tue Aug 11 2020

SYNOPSIS. Clouds and sunshine through Wednesday as an upper level trough slides north of the area. An upper ridge builds into the Pacific Northwest late Thursday with temperatures warming through the weekend with dry weather.

SHORT TERM /TONIGHT THROUGH FRIDAY/. Mostly sunny skies across the area this afternoon with increasing high clouds as a weak shortwave approaches. Seasonable temperatures today with upper 60s to mid 70s. Clouds will increase into this evening as the shortwave slides through, though most areas will be dry. Hi-res guidance highlights the possibility of at least some convergence near the central Puget Sound so have at least a slight chance of precip in this area, though may just be increased low- mid clouds and be dry. Clouds will be around into Wednesday morning with some clearing in the afternoon. Highs Wednesday will be a bit cooler in the upper 60s to low 70s.

The upper trough north of the area will slide east Thursday morning as an upper ridge builds into the Pacific Northwest. Any morning clouds will clear quicker for more sunshine in the afternoon with highs into the mid 70s.

The upper ridge will impact the Pacific Northwest Friday and through the weekend for dry weather. Temperatures will warm Friday into the 70s and low 80s across the area. JD

LONG TERM /SATURDAY THROUGH TUESDAY/. The upper ridge will build even more into Western Washington Saturday and Sunday. Temperatures will warm Saturday into the 80s across much of the Southwest Interior into the Puget Sound. Sunday may be the warmest day of the stretch, though there is some uncertainty as to how long the ridge is over the Pacific Northwest with a trough well offshore. Highs on Sunday will be in 80s across most of the area with 90s at least across the Southwest Interior and into the southern Puget Sound, though will have to monitor if it is even a few degrees warmer. Guidance highlights a weak shortwave riding the ridge late Sunday night into Monday with just a slight chance for precipitation with temperatures dropping a few degrees. There is some uncertainty whether the ridge builds for Tuesday, though temperatures are expected to be above average for the area. JD

AVIATION. Continued clearing this afternoon for all TAF locations. An upper level trough will be passing through the area tonight. This will bring gusty winds in excess of 15 knots at KPWT and KBLI. Beginning around 0400 UTC the onshore flow will start to bring clouds into KHQM, followed by KPWT a few hours later. This marine push is not expected to effect the more inland airports until around 0800 UTC. Once clouds have moved into the area MVFR and IFR conditions are expected. VFR conditions are expected to return by around 1500 UTC Wednesday morning for much of the area. The clearing will be delayed until the afternoon for coast.

KSEA . VFR conditions are to remain for the rest of the afternoon. Winds will remain westerly and decreasing to around 5 knots this evening and into tonight. After midnight the marine push will force winds to become Southerly and start to bring in clouds. MVFR conditions are possible by Wednesday morning. Clearing is expected to begin around 1500 UTC and sky conditions will slowly improve to VFR through Wednesday afternoon.

MARINE. Onshore flow will persist through Thursday before a ridge of high pressure builds over the area. Strong pushes are likely through the Strait each afternoon and evening through Thursday. Gale force winds are expected for the central and eastern Strait starting this evening and lasting into Wednesday morning. Strong winds may bleed over into Admiralty Inlet and northern Inland waters, a small craft advisory will be in effect for those areas. Winds and swell across the coastal waters will gradually diminish below criteria by Wednesday morning. Winds are expected to decrease through Wednesday afternoon, and begin to pick back up starting at 0000 UTC Thursday. Models are suggesting that the marine push through the Strait will not be as strong, but a small craft advisory is not out of the question for Wednesday into Thursday.

Butwin

FIRE WEATHER. Onshore flow with cooler temperatures through Thursday with no major fire weather concerns. An upper ridge builds into the area late week through the weekend. Dry and unstable conditions are possible, mainly for Sunday, with rather low RHs and mid level haines indices of 6. This will be monitored through the week. JD

HYDROLOGY. The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 5 AM PDT Wednesday 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.

Gale Warning until 3 AM PDT Wednesday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 3 AM PDT Wednesday for Admiralty Inlet-Northern Inland Waters Including The San Juan Islands.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 7 mi57 min W 11 G 13
TCNW1 - 9446484 - Tacoma, WA 7 mi57 min 74°F 56°F1013.3 hPa (-1.4)
46121 10 mi32 min 7.8 68°F 1012.9 hPa50°F
WPOW1 - West Point, WA 28 mi117 min SSE 7 G 7 66°F 1013.8 hPa (-1.1)56°F
46120 35 mi30 min Calm 69°F 1012 hPa53°F
46125 44 mi34 min 60°F 1012.1 hPa53°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tacoma, Tacoma Narrows Airport, WA2 mi64 minW 7 G 1710.00 miFair71°F46°F42%1012.9 hPa
Tacoma / McChord Air Force Base, WA8 mi59 minW 910.00 miFair76°F45°F34%1013.1 hPa
Fort Lewis / Gray U. S. Army Airfield, WA13 mi2 hrsSSW 11 G 1610.00 miFair76°F54°F47%1013.5 hPa
Seattle, Seattle-Tacoma International Airport, WA17 mi64 minSSW 810.00 miMostly Cloudy74°F48°F41%1013.7 hPa
Pierce County-Thun Field, WA18 mi62 minWSW 710.00 miFair77°F42°F30%1013.5 hPa
Bremerton, Bremerton National Airport, WA19 mi61 minS 810.00 miFair75°F51°F43%1013 hPa
Boeing Field - King County International Airport, WA22 mi64 minVar 610.00 miFair74°F48°F41%1012.6 hPa
Renton Municipal Airport, WA24 mi64 minW 76.00 miFair74°F50°F43%1013.1 hPa

Link to 5 minute data for KTIW

Wind History from TIW (wind in knots)
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Last 24hrNE4N8N8N7N3W3W4W4W4W3SW4SW3SW4W4S6SW3SW6SW6SW5SW7CalmSW7W10
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1 day agoNE11NE7NE7N6N5N4CalmNE4NE5CalmN4N3CalmCalmN4CalmCalmE4NE85NE7N5S6NE5
2 days agoE6NE7NE8N8NE3NE3CalmCalmN3CalmCalmCalmCalmCalmCalmNE3N5E5N6N9NE10N11NE7NE12
G16

Tide / Current Tables for Tacoma Narrows Bridge, Washington
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Tacoma Narrows Bridge
Click for Map
Tue -- 05:46 AM PDT     2.55 feet Low Tide
Tue -- 06:02 AM PDT     Sunrise
Tue -- 09:47 AM PDT     Last Quarter
Tue -- 12:28 PM PDT     8.88 feet High Tide
Tue -- 02:15 PM PDT     Moonset
Tue -- 05:22 PM PDT     5.71 feet Low Tide
Tue -- 08:27 PM PDT     Sunset
Tue -- 11:29 PM PDT     11.05 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.99.67.95.942.82.63.14.25.77.18.38.88.88.37.46.45.85.86.67.7910.211

Tide / Current Tables for The Narrows, S end midstream, Washington Current
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The Narrows
Click for Map
Tue -- 02:23 AM PDT     -2.76 knots Max Ebb
Tue -- 06:02 AM PDT     Sunrise
Tue -- 06:13 AM PDT     0.00 knots Slack
Tue -- 09:03 AM PDT     2.99 knots Max Flood
Tue -- 09:47 AM PDT     Last Quarter
Tue -- 12:05 PM PDT     -0.00 knots Slack
Tue -- 02:15 PM PDT     Moonset
Tue -- 02:49 PM PDT     -1.54 knots Max Ebb
Tue -- 06:11 PM PDT     0.00 knots Slack
Tue -- 08:27 PM PDT     Sunset
Tue -- 09:08 PM PDT     2.56 knots Max Flood
Tue -- 11:32 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.2-2.2-2.7-2.7-2.2-1.4-0.31.22.532.51.40.1-0.8-1.4-1.5-1.3-0.9-0.20.922.62.10.8

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 (19,4,5,8)
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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.