Mercer Island, WA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Mercer Island, WA

June 13, 2024 3:50 AM PDT (10:50 UTC) Change Location
Sunrise 5:08 AM   Sunset 9:09 PM
Moonrise 11:34 AM   Moonset 12:21 AM 
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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- 239 Am Pdt Thu Jun 13 2024

Today - N wind around 5 kt, rising to 5 to 10 kt late this morning and afternoon. Waves around 2 ft or less.

Tonight - NW wind 5 to 10 kt, backing to S after midnight. Waves around 2 ft or less.

Fri - S wind 5 to 10 kt. Waves around 2 ft or less. A chance of showers in the afternoon.

Fri night - SW wind 5 to 10 kt. Waves around 2 ft or less. A chance of showers.

Sat - SW wind 5 to 10 kt. Waves around 2 ft or less. Showers. A chance of tstms in the afternoon.

Sat night - W wind 5 to 10 kt, becoming S after midnight. Waves around 2 ft or less. A chance of tstms in the evening.

Sun - S wind around 5 kt, veering to N in the afternoon. Waves around 2 ft or less. A chance of showers.

Sun night - N wind around 5 kt. Waves around 2 ft or less.

Mon - SW wind around 5 kt. Waves around 2 ft or less.

Mon night - SW wind around 5 kt. Waves around 2 ft or less.
winds and waves higher in and near tstms.

PZZ100 239 Am Pdt Thu Jun 13 2024

Synopsis for the northern and central washington coastal and inland waters - High pressure will begin to weaken across the region today ahead of an incoming frontal system. Onshore flow will persist over the next few days. The next front will move across the waters Friday into Saturday. High pressure looks to build back over the coastal waters briefly in its wake with the potential for additional systems to follow early next week.


7 Day Forecast for Marine Location Near Mercer Island, WA
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Area Discussion for - Seattle, WA
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FXUS66 KSEW 131049 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 349 AM PDT Thu Jun 13 2024

SYNOPSIS
Upper level ridge moving through Western Washington today. Cool upper level low dropping down from the Gulf of Alaska approaching the area Friday. Weak front spinning out of the low moving through later in the day. Cool unsettled weather over the weekend as the low moves right over the area. The low will move south and east Monday. A weak upper level ridge will try to build for the middle of next week.

SHORT TERM /TODAY THROUGH SATURDAY/
Satellite imagery shows mostly clear skies over the area at 3 am/10z. Temperatures were in the mid 40s to mid 50s.

Upper level ridge moving through Western Washington today giving the area a mostly sunny day. Southwesterly flow aloft will bring in some high clouds especially this afternoon. Highs will be near normal, 60s and lower 70s.

Ridge well to the east tonight with an upper level low making its move out of the Gulf of Alaska towards Western Washington. Low still well to the northwest by early Friday morning. With mostly clear skies temperatures will lower into the 40s and lower 50s by sunrise Friday morning.

Upper level low continuing to move southeast Friday. Weak front spinning out of the low moving through during the day with showers along the coast, in the Olympics and Northwest Interior with a chance of showers elsewhere. Highs with plenty of cloud cover will only get into the upper 50s to mid 60s.

Low continuing to move towards Western Washington ending up right on top of the area Saturday. Increasing showers late Friday night through Saturday. Air mass becoming unstable with 500 mb temperatures as cold as -28C. Lapse rates in the plus 7 to 8C range and lifted indexes below 0 Saturday afternoon for a chance of thunderstorms. Lows Friday night in the 40s. Highs Saturday only in the mid 50s to lower 60s, at least 10 degrees below normal.

Upper level low remaining over the area Saturday night with showers and a chance of thunderstorms continuing through the evening hours.

LONG TERM /SUNDAY THROUGH WEDNESDAY/
Models solutions starting to lose some consistency as far as the timing of when the upper level low moves out of the area. Models remaining consistent with the low over Western Washington Sunday continuing the chance for showers and possible thunderstorms. The operational GFS is now keeping the low around well into Monday while the ECMWF kicks the low out to the south and east like previous model runs have indicated. GFS ensembles more in line with the ECMWF solution than the operation GFS solution so will stay with just a chance of showers Monday. Both models have Western Washington on the backside of the low Tuesday with a slightly unstable air mass over the region keeping a chance of showers in the forecast. Weak upper level ridge trying to build Wednesday. The ridge is pretty feeble in the ensembles with 20 to 30 percent of the ensemble solutions still having some light showers in the area Wednesday.
Would like to see a stronger ridge before completely drying out the forecast for the middle of next week. High temperatures warming a little each day with mid 50s to lower 60s Sunday warming to near normal, mid 60s to lower 70s, Wednesday. Felton

AVIATION
Westerly flow aloft becoming southwesterly as an upper- level trough approaches western Washington. Skies are mostly clear this morning except for some passing high clouds. With the mostly clear skies and upper-level subsidence, some patchy fog development will be possible, but should be shallow, patchy, and localized to river valleys. A marine stratus layer may develop this morning, with up to a 30-35% chance of MVFR or lower ceilings at HQM. Tomorrow skies will be prevailing VFR conditions with increasing mid to high level clouds as a frontal system approaches the region. Light northerly winds will pick up this afternoon to around 5-10 kt, switching to southerly late tonight towards the end of the TAF period.

KSEA...VFR conditions through the TAF period. Mostly clear this morning with increasing mid to high level cloud cover through the afternoon and evening hours ahead of an incoming system. Northerly winds 5 to 10 kt through the day then switching to south/southwesterly around 06Z Friday.

LH

MARINE
High pressure dominates over the coastal waters this morning which has allowed for mostly light winds across the area waters today. A westerly push down the Strait of Juan de Fuca will warrant a Small Craft Advisory for the Central and East Strait beginning late this afternoon through early morning Friday.

A frontal system will approach the region Friday morning, with the low pressure center moving through on Saturday into early Sunday.
Additional pushes of westerlies down the Strait of Juan de Fuca are expected Friday evening and Saturday evening, which may warrant additional headlines. Winds look to remain below advisory thresholds through the remainder of the area waters. Scattered thunderstorms are possible Saturday over the Puget Sound and Hood Canal region, which could produce heavy downpours, lightning, small hail, and brief gusty winds.

The pattern looks uncertain heading into early next week, but high pressure may briefly build back into the coastal waters with additional systems weakening as they approach and move through the region.

Seas look to remain around 5-7 ft through the forecast period.

LH

SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory from 2 PM this afternoon to 5 AM PDT Friday for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 5 PM this afternoon to 5 AM PDT Friday for East Entrance U.S. Waters Strait Of Juan De Fuca.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
WPOW1 - West Point, WA 13 mi51 minENE 5.1G7 51°F 30.1446°F
BMTW1 19 mi51 minSSE 4.1G6 51°F 30.15
TCMW1 - 9446482 - Tacoma Met, WA 20 mi51 minNW 4.1G7 53°F
TCNW1 - 9446484 - Tacoma, WA 21 mi51 min 53°F30.15
PTWW1 - 9444900 - Port Townsend, WA 48 mi51 minW 8G12 50°F 51°F30.16


Wind History for No Ports station near this location
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No data


Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KBFI BOEING FIELD/KING COUNTY INTL,WA 2 sm57 mincalm10 smClear54°F43°F67%30.13
KRNT RENTON MUNI,WA 4 sm57 minN 038 smClear54°F45°F71%30.13
KSEA SEATTLETACOMA INTL,WA 7 sm57 minNNE 0910 smPartly Cloudy52°F43°F71%30.12


Tide / Current for Duwamish Waterway, Washington
   
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Duwamish Waterway
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Thu -- 01:21 AM PDT     Moonset
Thu -- 05:11 AM PDT     Sunrise
Thu -- 06:04 AM PDT     5.22 feet Low Tide
Thu -- 10:16 AM PDT     6.94 feet High Tide
Thu -- 12:33 PM PDT     Moonrise
Thu -- 04:46 PM PDT     2.05 feet Low Tide
Thu -- 09:07 PM PDT     Sunset
Thu -- 10:19 PM PDT     First Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Duwamish Waterway, Washington, Tide feet
12
am
11
1
am
10.3
2
am
9
3
am
7.6
4
am
6.3
5
am
5.5
6
am
5.2
7
am
5.4
8
am
5.9
9
am
6.6
10
am
6.9
11
am
6.8
12
pm
6.3
1
pm
5.4
2
pm
4.3
3
pm
3.1
4
pm
2.3
5
pm
2.1
6
pm
2.7
7
pm
4
8
pm
5.7
9
pm
7.6
10
pm
9.3
11
pm
10.5


Tide / Current for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
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Thu -- 01:22 AM PDT     Moonset
Thu -- 02:51 AM PDT     -0.65 knots Max Ebb
Thu -- 05:11 AM PDT     Sunrise
Thu -- 07:56 AM PDT     0.00 knots Slack
Thu -- 08:07 AM PDT     0.03 knots Max Flood
Thu -- 09:35 AM PDT     -0.00 knots Slack
Thu -- 12:34 PM PDT     Moonrise
Thu -- 02:04 PM PDT     -0.51 knots Max Ebb
Thu -- 05:35 PM PDT     0.00 knots Slack
Thu -- 08:09 PM PDT     0.49 knots Max Flood
Thu -- 09:08 PM PDT     Sunset
Thu -- 10:19 PM PDT     First Quarter
Thu -- 11:50 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Restoration Point, 0.6 miles ESE of, Washington Current, knots
12
am
-0.2
1
am
-0.4
2
am
-0.6
3
am
-0.7
4
am
-0.6
5
am
-0.4
6
am
-0.3
7
am
-0.1
8
am
0
9
am
0
10
am
-0
11
am
-0.2
12
pm
-0.3
1
pm
-0.5
2
pm
-0.5
3
pm
-0.5
4
pm
-0.3
5
pm
-0.1
6
pm
0.1
7
pm
0.4
8
pm
0.5
9
pm
0.5
10
pm
0.4
11
pm
0.2


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Seattle/Tacoma, WA,




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