Sunday, September27, 2020
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Marine Weather and Tides
Federal Way, 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 7:02AMSunset 6:57PM Sunday September 27, 2020 12:16 AM PDT (07:16 UTC) Moonrise 4:49PMMoonset 1:20AM 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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PZZ135 Puget Sound And Hood Canal- 830 Pm Pdt Sat Sep 26 2020
Tonight..S wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers in the evening then a slight chance of showers after midnight.
Sun..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less. Patchy fog in the morning.
Sun night..N wind to 10 kt. Wind waves 1 ft or less.
Mon..N wind 5 to 15 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft.
Mon night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind 5 to 15 kt. Wind waves 2 ft or less.
Tue night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Wed..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Thu..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 830 Pm Pdt Sat Sep 26 2020
Synopsis for the northern and central washington coastal and inland waters..Weak onshore flow tonight will turn northerly on Sunday as high pressure along the coast shifts north over vancouver island. A thermal trough will build north into the coastal waters Monday and Tuesday for a period of offshore flow. Weaker offshore flow will continue Wednesday and Thursday.


7 Day Forecast for Marine Location Near Federal Way, WA
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location: 47.33, -122.34     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 270330 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 830 PM PDT Sat Sep 26 2020

SYNOPSIS. A weak weather system will exit the region tonight with isolated showers ending. High pressure aloft will be in control next week for dry and warmer weather.

SHORT TERM /TONIGHT THROUGH TUESDAY/. A few showers are lingering over the mountains and in a PSCZ this evening. This activity should gradually fade away tonight as an upper ridge starts to build in from the west. There is plenty of lingering low level moisture which should keep things mostly cloudy into Sunday morning.

The upper ridge will move over the area on Sunday and remain in place through Tuesday for dry weather. Low level offshore flow will develop on Monday and continue on Tuesday. This should limit any nighttime low clouds and fog. Highs in the 60s on Sunday will warm into the 70s Monday and Tuesday. Schneider

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Previous discussion . Dry and warmer weather through Saturday with the ridge over Western Washington. Wednesday will likely be the warmest day for interior locations with highs in the upper 70s to low 80s. Flow turns light Thursday into Friday as the ridge shifts slightly east. Dry and warm through Friday with highs in the 70s. Onshore flow may increase a bit into Saturday for slighter cooler temperatures. Highs on Saturday into the upper 60s to low 70s. JD

AVIATION. An upper ridge will build into the area from the west tonight and Sunday with northwest flow aloft. At the surface, light onshore flow tonight will turn northerly on Sunday as high pressure along the coast shifts over Vancouver Island and a thermal trough to the south starts to build north. The air mass will be stable.

Areas of low and mid clouds will fill tonight then clouds will scatter Sunday afternoon. A Puget Sound Convergence Zone will dissipate later tonight.

KSEA . Mid clouds this evening. Low clouds should redevelop early Sunday morning then scatter around midday Sunday. South wind 4-8 knots will become light Sunday morning then north/northwest 4-8 knots Sunday afternoon. Schneider

MARINE. Weak onshore flow tonight. It does not look like west wind in the Strait will reach SCA strength this evening so the advisory has been dropped. West swell over the Coastal Waters are flirting with 10 feet this evening but are expected to remain just below SCA criteria then subside on Sunday. Low level flow will turn northerly on Sunday as high pressure along the coast shifts over Vancouver Island. A thermal trough will build north into the Coastal Waters for offshore flow Monday and Tuesday. Weaker offshore flow will continue Wednesday and Thursday. Schneider

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 . None.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 6 mi47 min SW 1.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 6 mi47 min 57°F 56°F1025.4 hPa
46121 21 mi22 min 1.9 57°F 1025.2 hPa53°F
WPOW1 - West Point, WA 23 mi77 min SE 1 G 1.9 54°F 1024.1 hPa (+1.8)54°F
46120 30 mi23 min Calm 56°F 1024 hPa53°F
46125 43 mi19 min 54°F 1024.2 hPa52°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA8 mi24 minSSW 810.00 miA Few Clouds54°F52°F93%1025.3 hPa
Renton Municipal Airport, WA13 mi24 minN 010.00 miFair55°F51°F87%1025.1 hPa
Tacoma, Tacoma Narrows Airport, WA13 mi24 minS 310.00 miMostly Cloudy53°F52°F96%1024.9 hPa
Boeing Field - King County International Airport, WA14 mi24 minN 010.00 miFair55°F51°F87%1024.8 hPa
Tacoma / McChord Air Force Base, WA14 mi79 minSSW 810.00 miFair55°F52°F92%1024.4 hPa
Pierce County-Thun Field, WA16 mi42 minN 010.00 miFair54°F53°F100%1025.1 hPa
Fort Lewis / Gray U. S. Army Airfield, WA21 mi19 minS 510.00 miFair51°F51°F100%1025.4 hPa

Link to 5 minute data for KSEA

Wind History from SEA (wind in knots)
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Last 24hrS9S10S8S6S6S8S7SE4S11S10SW9S12SW12
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1 day agoSE8SE8S10S11S10S10S15SE16
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Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Sun -- 01:41 AM PDT     9.08 feet High Tide
Sun -- 02:19 AM PDT     Moonset
Sun -- 07:03 AM PDT     Sunrise
Sun -- 08:41 AM PDT     0.47 feet Low Tide
Sun -- 04:01 PM PDT     11.61 feet High Tide
Sun -- 05:48 PM PDT     Moonrise
Sun -- 06:55 PM PDT     Sunset
Sun -- 09:55 PM PDT     5.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.28.998.57.45.73.61.80.70.51.335.47.89.811.111.611.29.98.36.85.85.55.9

Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
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Skagit Bay
Click for Map
Sun -- 02:20 AM PDT     Moonset
Sun -- 02:33 AM PDT     -1.16 knots Max Ebb
Sun -- 05:56 AM PDT     0.05 knots Slack
Sun -- 07:04 AM PDT     Sunrise
Sun -- 08:50 AM PDT     1.65 knots Max Flood
Sun -- 01:02 PM PDT     -0.02 knots Slack
Sun -- 04:14 PM PDT     -1.23 knots Max Ebb
Sun -- 05:49 PM PDT     Moonrise
Sun -- 06:56 PM PDT     Sunset
Sun -- 07:20 PM PDT     0.04 knots Slack
Sun -- 09:33 PM PDT     1.24 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-0.9-1.1-1.1-1-0.80.21.21.61.71.61.410.1-1-1.2-1.2-1.2-1.1-0.60.91.21.21.1

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
Ground Weather Radar Station Seattle/Tacoma, WA
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