Marine Weather and Tide Forecast for Vashon, WA
April 21, 2025 3:35 AM PDT (10:35 UTC) Change Location
![]() | Sunrise 6:06 AM Sunset 8:08 PM Moonrise 2:38 AM Moonset 11:27 AM |
PZZ135 Puget Sound And Hood Canal- 212 Am Pdt Mon Apr 21 2025
Today - S wind around 5 kt, rising to 5 to 10 kt early this afternoon, veering to nw late. Waves around 2 ft or less.
Tonight - NW wind 5 to 10 kt, becoming S after midnight. Waves around 2 ft or less.
Tue - NW wind around 5 kt, veering to N around 5 kt in the afternoon. Waves around 2 ft or less.
Tue night - N wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.
Wed - N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less.
Wed night - N wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.
Thu - N wind around 5 kt. Waves around 2 ft or less.
Thu night - NW wind around 5 kt, backing to sw after midnight. Waves around 2 ft or less. A chance of rain after midnight.
Fri - S wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain.
Fri night - W wind 5 to 10 kt, backing to S after midnight. Waves around 2 ft or less. A chance of rain.
PZZ100 212 Am Pdt Mon Apr 21 2025
Synopsis for the northern and central washington coastal and inland waters - High pressure will begin to build into the coastal waters today, and persist over the area waters through midweek. The next frontal system will move into the area waters on Friday.
7 Day Forecast for Marine Location Near Vashon, WA

NEW! Add second zone forecast
Burton Click for Map Mon -- 01:07 AM PDT 11.51 feet High Tide Mon -- 03:37 AM PDT Moonrise Mon -- 06:09 AM PDT Sunrise Mon -- 07:05 AM PDT 7.44 feet Low Tide Mon -- 10:36 AM PDT 8.49 feet High Tide Mon -- 12:27 PM PDT Moonset Mon -- 06:07 PM PDT 0.80 feet Low Tide Mon -- 08:08 PM PDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |   |
Burton, Quartermaster Harbor (inside), Washington, Tide feet
12 am |
11.1 |
1 am |
11.5 |
2 am |
11.3 |
3 am |
10.5 |
4 am |
9.5 |
5 am |
8.4 |
6 am |
7.7 |
7 am |
7.4 |
8 am |
7.6 |
9 am |
8 |
10 am |
8.4 |
11 am |
8.5 |
12 pm |
8 |
1 pm |
7 |
2 pm |
5.7 |
3 pm |
4.1 |
4 pm |
2.6 |
5 pm |
1.4 |
6 pm |
0.8 |
7 pm |
1.2 |
8 pm |
2.4 |
9 pm |
4.2 |
10 pm |
6.4 |
11 pm |
8.6 |
Skagit Bay Click for Map Mon -- 12:47 AM PDT -1.00 knots Max Ebb Mon -- 03:38 AM PDT Moonrise Mon -- 05:20 AM PDT 0.02 knots Slack Mon -- 06:09 AM PDT Sunrise Mon -- 06:27 AM PDT 0.55 knots Max Flood Mon -- 08:47 AM PDT -0.01 knots Slack Mon -- 12:27 PM PDT Moonset Mon -- 12:39 PM PDT -0.93 knots Max Ebb Mon -- 03:07 PM PDT 0.01 knots Slack Mon -- 06:51 PM PDT 1.41 knots Max Flood Mon -- 08:08 PM PDT Sunset Mon -- 11:15 PM PDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |   |
Skagit Bay, 1 mile S of Goat Island, Washington Current, knots
12 am |
-0.9 |
1 am |
-1 |
2 am |
-0.9 |
3 am |
-0.8 |
4 am |
-0.7 |
5 am |
-0.4 |
6 am |
0.5 |
7 am |
0.5 |
8 am |
0.3 |
9 am |
-0.3 |
10 am |
-0.5 |
11 am |
-0.7 |
12 pm |
-0.9 |
1 pm |
-0.9 |
2 pm |
-0.7 |
3 pm |
-0.3 |
4 pm |
0.6 |
5 pm |
1 |
6 pm |
1.3 |
7 pm |
1.4 |
8 pm |
1.3 |
9 pm |
1.1 |
10 pm |
0.8 |
11 pm |
0.3 |
Area Discussion for Seattle, WA
Hide  HelpNOTE: mouseover dotted underlined text for definition
FXUS66 KSEW 210933 AFDSEW
Area Forecast Discussion National Weather Service Seattle WA 233 AM PDT Mon Apr 21 2025
SYNOPSIS
Conditions will begin to dry out today as a trough exits. High pressure will bring dry and warmer conditions Wednesday and Thursday. Precipitation chances return Friday into the weekend.
SHORT TERM /TODAY THROUGH WEDNESDAY/
Classic convergence zone over King County overnight with onshore flow and troughing overhead. So far the central Cascade passes look bare/wet but could still see light snow at both Stevens and Snoqualmie Pass with snow levels lowering to around 2500 ft. But in general, the convergence zone will fade this morning as the trough exits east.
Temperatures will track cooler than average with highs in the 50s today. Lows will drop into the 30s and lower 40s tonight, with lower 30s around the south sound. There's a low chance (10 percent) of seeing freezing conditions in the south sound. If so, due to clearing and light winds, it would be brief in duration.
We're under dry N/NW flow on Tuesday with high pressure offshore.
Temperatures are a little warmer and in the lower 60s in the interior, with 50s elsewhere. Lows will be cool and in the 30s and lower 40s again. The ridge shifts inland on Wednesday for sunny skies and highs in the 60s throughout. 33
LONG TERM /THURSDAY THROUGH SUNDAY/
High pressure brings one more dry and warm day on Thursday with temperatures peaking in the 60s and 70s. A trough then brings showers and cooler conditions moving into Friday. Rain and cooler weather follows into the weekend with a broad trough over the West. Sunday is a little drier and warmer (near normal) as the low center shifts toward the Great Basin. 33
AVIATION
An upper level trough is currently progressing through western WA this morning with a jet max over the state, creating strong northwesterly flow aloft until later today. A few areas of showers continue across some of the terminals this morning. The showers up in Skagit/Whatcom Counties continue to move southeast with light/moderate rain. Down in King County (between I-90 and the Snohomish County line), the convergence zone continues, remaining stationary with light/moderate rain. A few scattered/isolated showers were also tracking southeast along the Pacific Coast. The ceilings remain broken to overcast across, with the lowest CIGs (MVFR) associated with the convergence zone affecting KSEA and KBFI.
Most of the showers will wind down around 12Z this morning (with a few lingering in areas near the north Cascades through roughly 00Z).
Throughout the day today, MVFR ceilings will be associated with showers north of I-90 through the afternoon, with remaining areas seeing lower VFR ceilings with clearing taking place this evening.
Lower visibilities down to 3 SM with mist is possible with the heavier showers.
Winds continue to decrease along the Strait of Juan de Fuca this morning (with a few gusts to 20-25 kt possible through sunrise).
Northwest winds of 5 to 10 kt will be found in areas west of the Olympics. In the South Interior (around KOLM), the winds will be more westerly at the same magnitude. For the North Interior (KBLI), winds will be out of the southwest, with lighter winds down to 5 kt tonight/Tuesday morning. Finally, in Puget Sound, winds will become solidly southerly this morning at around 4 to 8 kt, with a turn to the west/northwest taking place around 00Z (decreasing to less than 5 kt).
KSEA...Convergence zone just north of the terminal will continue this morning through roughly 12Z. The showers are expected to remain to the north of the terminal at this point. Ceilings will likely remain MVFR until the convergence zone vastly dissipates, but ceilings will still remain overcast on the low-end of VFR. More clearing is expected tonight/Tuesday morning. Winds have turned back to the south at around 8 kt this morning, and will become more westerly this afternoon to northwest sometime after 00Z. The magnitude of the wind will decrease at or below 5 kt tonight.
HPR
MARINE
A trough sits over inland WA this morning, with high pressure beginning to build out in the coastal waters this morning.
This will keep the flow pattern northwesterly/onshore through next Thursday/Friday before another potential disturbance tracks towards the region.
Post trough, a few breezy spots remain out on Smith Island and far in the northern coastal waters. Sustained winds have dropped at or below 20 kt, with gusts not exceeding 25 kt. Given the downward trend in the observations, will allow the small craft advisories to expire at 3 AM this morning in the central/east Strait of Juan de Fuca, and 11 AM for the northern two thirds of the coastal waters/west Strait of Juan de Fuca. The winds will decrease this morning, and will remain benign through the week. The front Thursday/Friday is not expected to produce hazardous winds at this time, but may change as higher resolution guidance becomes available.
The seas will decrease from 8 to 10 feet this morning down to 5 to 7 feet Tuesday (periods will increase from 9 seconds to 11 seconds Tuesday). Expect a further drop down to 3 to 5 feet Thursday before increasing back up to 6 to 9 feet on Saturday.
HPR
HYDROLOGY
No river flooding is expected during the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory until 3 AM PDT early this morning for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca-West Entrance U.S.
Waters Strait Of Juan De Fuca.
Small Craft Advisory until 11 AM PDT this morning 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.
Area Forecast Discussion National Weather Service Seattle WA 233 AM PDT Mon Apr 21 2025
SYNOPSIS
Conditions will begin to dry out today as a trough exits. High pressure will bring dry and warmer conditions Wednesday and Thursday. Precipitation chances return Friday into the weekend.
SHORT TERM /TODAY THROUGH WEDNESDAY/
Classic convergence zone over King County overnight with onshore flow and troughing overhead. So far the central Cascade passes look bare/wet but could still see light snow at both Stevens and Snoqualmie Pass with snow levels lowering to around 2500 ft. But in general, the convergence zone will fade this morning as the trough exits east.
Temperatures will track cooler than average with highs in the 50s today. Lows will drop into the 30s and lower 40s tonight, with lower 30s around the south sound. There's a low chance (10 percent) of seeing freezing conditions in the south sound. If so, due to clearing and light winds, it would be brief in duration.
We're under dry N/NW flow on Tuesday with high pressure offshore.
Temperatures are a little warmer and in the lower 60s in the interior, with 50s elsewhere. Lows will be cool and in the 30s and lower 40s again. The ridge shifts inland on Wednesday for sunny skies and highs in the 60s throughout. 33
LONG TERM /THURSDAY THROUGH SUNDAY/
High pressure brings one more dry and warm day on Thursday with temperatures peaking in the 60s and 70s. A trough then brings showers and cooler conditions moving into Friday. Rain and cooler weather follows into the weekend with a broad trough over the West. Sunday is a little drier and warmer (near normal) as the low center shifts toward the Great Basin. 33
AVIATION
An upper level trough is currently progressing through western WA this morning with a jet max over the state, creating strong northwesterly flow aloft until later today. A few areas of showers continue across some of the terminals this morning. The showers up in Skagit/Whatcom Counties continue to move southeast with light/moderate rain. Down in King County (between I-90 and the Snohomish County line), the convergence zone continues, remaining stationary with light/moderate rain. A few scattered/isolated showers were also tracking southeast along the Pacific Coast. The ceilings remain broken to overcast across, with the lowest CIGs (MVFR) associated with the convergence zone affecting KSEA and KBFI.
Most of the showers will wind down around 12Z this morning (with a few lingering in areas near the north Cascades through roughly 00Z).
Throughout the day today, MVFR ceilings will be associated with showers north of I-90 through the afternoon, with remaining areas seeing lower VFR ceilings with clearing taking place this evening.
Lower visibilities down to 3 SM with mist is possible with the heavier showers.
Winds continue to decrease along the Strait of Juan de Fuca this morning (with a few gusts to 20-25 kt possible through sunrise).
Northwest winds of 5 to 10 kt will be found in areas west of the Olympics. In the South Interior (around KOLM), the winds will be more westerly at the same magnitude. For the North Interior (KBLI), winds will be out of the southwest, with lighter winds down to 5 kt tonight/Tuesday morning. Finally, in Puget Sound, winds will become solidly southerly this morning at around 4 to 8 kt, with a turn to the west/northwest taking place around 00Z (decreasing to less than 5 kt).
KSEA...Convergence zone just north of the terminal will continue this morning through roughly 12Z. The showers are expected to remain to the north of the terminal at this point. Ceilings will likely remain MVFR until the convergence zone vastly dissipates, but ceilings will still remain overcast on the low-end of VFR. More clearing is expected tonight/Tuesday morning. Winds have turned back to the south at around 8 kt this morning, and will become more westerly this afternoon to northwest sometime after 00Z. The magnitude of the wind will decrease at or below 5 kt tonight.
HPR
MARINE
A trough sits over inland WA this morning, with high pressure beginning to build out in the coastal waters this morning.
This will keep the flow pattern northwesterly/onshore through next Thursday/Friday before another potential disturbance tracks towards the region.
Post trough, a few breezy spots remain out on Smith Island and far in the northern coastal waters. Sustained winds have dropped at or below 20 kt, with gusts not exceeding 25 kt. Given the downward trend in the observations, will allow the small craft advisories to expire at 3 AM this morning in the central/east Strait of Juan de Fuca, and 11 AM for the northern two thirds of the coastal waters/west Strait of Juan de Fuca. The winds will decrease this morning, and will remain benign through the week. The front Thursday/Friday is not expected to produce hazardous winds at this time, but may change as higher resolution guidance becomes available.
The seas will decrease from 8 to 10 feet this morning down to 5 to 7 feet Tuesday (periods will increase from 9 seconds to 11 seconds Tuesday). Expect a further drop down to 3 to 5 feet Thursday before increasing back up to 6 to 9 feet on Saturday.
HPR
HYDROLOGY
No river flooding is expected during the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory until 3 AM PDT early this morning for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca-West Entrance U.S.
Waters Strait Of Juan De Fuca.
Small Craft Advisory until 11 AM PDT this morning 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.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
TCMW1 - 9446482 - Tacoma Met, WA | 9 mi | 47 min | SSE 4.1G | |||||
TCNW1 - 9446484 - Tacoma, WA | 10 mi | 47 min | 50°F | 30.22 | ||||
BMTW1 | 14 mi | 47 min | W 5.1G | 30.22 | ||||
WPOW1 - West Point, WA | 18 mi | 35 min | E 2.9G | 44°F | 30.21 | 44°F | ||
46123 | 29 mi | 125 min | W 3.9 | 46°F | 40°F | |||
46122 | 33 mi | 125 min | SSE 1.9 | 48°F | 43°F |
Wind History for Tacoma MET, WA
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KSEA SEATTLETACOMA INTL,WA | 9 sm | 42 min | SSE 06 | 10 sm | Overcast | 45°F | 37°F | 76% | 30.19 | |
KTIW TACOMA NARROWS,WA | 11 sm | 42 min | SSW 07 | 10 sm | Clear | 43°F | 37°F | 81% | 30.19 | |
KBFI BOEING FIELD/KING COUNTY INTL,WA | 12 sm | 42 min | ENE 06 | 10 sm | Overcast | 45°F | 41°F | 87% | 30.20 | |
KRNT RENTON MUNI,WA | 14 sm | 42 min | calm | 10 sm | Overcast | 46°F | 43°F | 87% | 30.20 | |
KPWT BREMERTON NTL,WA | 17 sm | 39 min | E 05 | 10 sm | Overcast | 43°F | 43°F | 100% | 30.18 | |
KTCM MCCHORD FIELD (JOINT BASE LEWISMCCHORD),WA | 18 sm | 40 min | S 08 | 10 sm | Clear | 41°F | 37°F | 87% | 30.19 | |
KGRF GRAY AAF (JOINT BASE LEWISMCCHORD),WA | 23 sm | 40 min | ESE 07 | 10 sm | Clear | 37°F | 36°F | 93% | 30.17 | |
KPLU PIERCE COUNTY THUN FIELD,WA | 23 sm | 20 min | S 05 | 10 sm | Mostly Cloudy | 43°F | 39°F | 87% | 30.20 |
Link to 1 hour of 5 minute data for KSEA
Terminal Aerodrome Forecast (TAF) for KSEA
Wind History Graph: SEA
(wind in knots)GEOS Local Image of Pacific Northwest
Edit Hide
Seattle/Tacoma, WA,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE