Saturday, July11, 2020
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Marine Weather and Tides
Keyport, 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 5:22AMSunset 9:09PM Friday July 10, 2020 9:24 PM PDT (04:24 UTC) Moonrise 11:25PMMoonset 10:10AM Illumination 68% Phase: Waning Gibbous; Moon at 20 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- 845 Pm Pdt Fri Jul 10 2020
Tonight..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Sat..Light wind becoming W 10 to 20 kt in the afternoon. Wind waves less than 1 ft becoming 1 to 3 ft in the afternoon.
Sat night..Variable wind 5 to 15 kt becoming sw to 10 kt after midnight. Wind waves 2 ft or less. A chance of rain.
Sun..SE 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.
Sun night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..N wind to 10 kt in the morning becoming light. Wind waves 1 ft or less in the morning becoming less than 1 ft.
Mon night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Tue..Light wind becoming nw to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Wed..Light wind becoming nw to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 845 Pm Pdt Fri Jul 10 2020
Synopsis for the northern and central washington coastal and inland waters..A weak front will move through the coastal waters Saturday afternoon and through the inland waters Saturday evening. Onshore flow will increase with the front. Periods of onshore flow will continue into next week with high pressure offshore and low pressure inland.


7 Day Forecast for Marine Location Near Keyport CDP, WA
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location: 47.7, -122.63     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 110344 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 844 PM PDT Fri Jul 10 2020

UPDATE. The previous forecast remains on track and no changes are planned for this evening.

PREV DISCUSSION. /issued 142 PM PDT Fri Jul 10 2020/

SYNOPSIS . Dry weather will prevail tonight. A weak cold front will bring scattered showers mainly Saturday night into Sunday. Dry and seasonable weather expected for early next week.

SHORT TERM /TONIGHT THROUGH MONDAY/ . Ridging over the Pac NW brings a dry and stable day today with stratus clouds breaking up in the interior. Temperatures were mostly in the 60s with a few low 70s expected this afternoon. Onshore flow will bring stratus clouds inland once again overnight.

The ridge shifts east toward the Rockies on Saturday while a trough digs offshore. A weak cold front will bring showers to the coast by the afternoon with showers spreading to the interior mainly during the evening.

We'll remain in post-frontal onshore flow Saturday night into Sunday for additional showers across the region. Showers associated with a convergence zone are likely over the north sound. Drier, more stable conditions are expected Sunday evening as the trough exits and onshore flow weakens.

Onshore flow continues for Monday for a more typical mid-July weather - morning clouds and afternoon sunbreaks. Highs in the 70s interior and 60s coast. 33

LONG TERM /TUESDAY THROUGH FRIDAY/ . A ridge remains offshore next week with west to northwest flow over WA. At the surface, the flow remains onshore with temperatures trending close to normal. A weak system may clip us Tuesday night or Wednesday for scattered showers over western WA. A weak disturbance may bring additional showers through the end of the week but confidence is low. 33

AVIATION . VFR conditions expected through the remainder of the evening hours. Expect MVFR to high end IFR CIGs to develop along the outer coast, with patchy MVFR CIGs possible in the Puget Sound region early Saturday morning. Low CIGs will quickly mix out in the Puget Sound region where the marine layer will be fairly shallow, with the outer coast clearing by Saturday afternoon. Increasing clouds through the day Saturday, with showers spreading from west to east late in the period. Brief reductions in vsbys will be possible under the heaviest showers, with CIGs lowering to MVFR once again. Generally light and variable winds overnight becoming southwesterly Saturday. Speeds around 10 knots with occasional higher gusts possible.

KSEA . VFR thru the evening and into the overnight hours. A brief period of MVFR CIGS will be possible overnight in the Puget SOund region prior to daybreak, but confidence remains low in this occuring over the terminal at this time. Any stratus that does develop will quickly mix out after daybreak, with VFR conditions prevailing. Southwesterly winds will prevail at speeds around 10 knots and periodic higher gusts during the afternoon. Increasing chances for -SHRA late in the period with CIGs gradually lowering as a frontal system approaches from the west.

Pullin

MARINE . Onshore flow will remain in place through the weekend with a low pressure system pushing across the coastal and inland waters Saturday into Saturday night. Nocturnal westerly pushes down the Strait of Juan de Fuca will persist into early next week with advisory level winds possible each night.

Offshore, seas will remain around 4 to 5 feet through the weekend with a southwesterly swell persisting into early next week.

Pullin

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 3 AM PDT Saturday for Central U.S. Waters Strait Of Juan De Fuca-East 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 11 mi144 min NE 14 G 16 60°F 1021 hPa (-1.0)56°F
46120 13 mi39 min N 3.9 59°F 1019.4 hPa54°F
46125 14 mi37 min 56°F 1019.8 hPa51°F
PTWW1 - 9444900 - Port Townsend, WA 29 mi54 min WSW 5.1 G 8 59°F 51°F1021.5 hPa
46121 30 mi39 min Calm 67°F 1020 hPa53°F
TCMW1 - 9446482 - Tacoma Met, WA 31 mi54 min NW 5.1 G 5.1
TCNW1 - 9446484 - Tacoma, WA 32 mi54 min 71°F 54°F1020.6 hPa
SISW1 - Smith Island, WA 44 mi154 min W 19 G 24 57°F 1021.8 hPa50°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, WA17 mi28 minno data10.00 miFair62°F53°F73%0 hPa
Boeing Field - King County International Airport, WA21 mi31 minWNW 410.00 miFair65°F51°F61%1020 hPa
Everett Snohomish County, WA24 mi31 minN 710.00 miFair58°F51°F78%1021 hPa

Link to 5 minute data for KPWT

Wind History from PWT (wind in knots)
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Last 24hrNE5CalmSE3SE3CalmCalmCalmCalmCalmCalmCalmSW6S6S8SW7SW84SW8S4SW7SW7W6SW3--
1 day agoCalmE4E3CalmCalmCalmCalmCalmCalmCalmSW6SW7SW9S7S7S9S8S11
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2 days agoN4CalmCalmCalmCalmCalmCalmCalmCalmS3CalmCalmSW63CalmSW4SW5SW6SW4CalmS5S3S3SW6

Tide / Current Tables for Poulsbo, Liberty Bay, Washington
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Poulsbo
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Sat -- 12:24 AM PDT     Moonrise
Sat -- 04:47 AM PDT     4.95 feet Low Tide
Sat -- 05:24 AM PDT     Sunrise
Sat -- 09:48 AM PDT     7.94 feet High Tide
Sat -- 12:15 PM PDT     Moonset
Sat -- 03:56 PM PDT     2.21 feet Low Tide
Sat -- 09:07 PM PDT     Sunset
Sat -- 11:08 PM PDT     11.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.19.67.86.25.255.46.177.77.97.56.55.23.82.62.22.74.15.97.99.811.111.6

Tide / Current Tables for West Point, Seattle, 0.3 miles W of, Washington Current
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West Point
Click for Map
Sat -- 12:24 AM PDT     Moonrise
Sat -- 01:17 AM PDT     -0.70 knots Max Ebb
Sat -- 05:24 AM PDT     Sunrise
Sat -- 05:46 AM PDT     0.00 knots Slack
Sat -- 07:14 AM PDT     0.15 knots Max Flood
Sat -- 09:11 AM PDT     -0.00 knots Slack
Sat -- 12:15 PM PDT     Moonset
Sat -- 12:44 PM PDT     -0.56 knots Max Ebb
Sat -- 04:11 PM PDT     0.00 knots Slack
Sat -- 07:17 PM PDT     0.68 knots Max Flood
Sat -- 09:07 PM PDT     Sunset
Sat -- 10:44 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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-0.6-0.7-0.7-0.5-0.3-0.100.10.10-0.2-0.4-0.5-0.6-0.5-0.3-00.30.50.70.60.50.2-0.1

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 (0,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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Disclaimer:
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.