Thursday, April22, 2021
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Marine Weather and Tides
Issaquah, WA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:03AMSunset 8:09PM Thursday April 22, 2021 6:47 AM PDT (13:47 UTC) Moonrise 1:33PMMoonset 3:32AM Illumination 81% 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- 238 Am Pdt Thu Apr 22 2021
Today..S wind to 10 kt. Wind waves 1 ft or less.
Tonight..SW wind to 10 kt rising to 5 to 15 kt after midnight. Wind waves 2 ft or less.
Fri..S wind 5 to 15 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft.
Fri night..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..S wind to 10 kt becoming sw 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sat night..S wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less.
Sun..S wind to 10 kt becoming variable. Wind waves 1 ft or less.
Mon..Light wind becoming variable to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 238 Am Pdt Thu Apr 22 2021
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will persist today with high pressure remaining over the northeastern pacific. A frontal system will move across the waters late Friday through Saturday. Weak low pressure will remain over the waters Sunday.


7 Day Forecast for Marine Location Near Issaquah, WA
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location: 47.54, -122.02     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 220927 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 227 AM PDT Thu Apr 22 2021

SYNOPSIS. Western Washington will have cooler weather and clouds with marine air in onshore flow today. A weather system will bring cool weather and precipitation to the region over the weekend. Weak high pressure might build over the region for the first part of next week before another period of wet weather begins.

SHORT TERM /TODAY THROUGH SATURDAY/. An upper trough is east of the area with weak surface low pressure over WA. Onshore flow into Western Washington will give cooler weather and clouds today. Friday will also have a deep marine layer over the area for cloudy cool weather. A weather system will arrive Saturday with periods of rain turning to a more showery precip Saturday night. Expect much cooler temps with high temps only forecast to be in the lower to mid 50s on Saturday. 19

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Cool showery weather on Sunday might give way to a couple of days that see more in the way of sunbreaks and high temps across the lowlands of Western Washington near 60 degrees--and perhaps warming to the lower to mid 60s around Tuesday of next week. There might be a bit of a ridge building into the area for a couple of days--so there might very well be some room to improve the forecast for a couple of days next week before another upper trough arrives after the middle of the week. 19

AVIATION. Northwest flow aloft continues over Western Washington today with an upper ridge over the offshore waters and an upper trough over the northern Rockies. Low level onshore flow has pushed marine moisture inland across the lowlands of Western Washington. IFR or low MVFR ceilings in stratus are expected through late morning. Stratus is expected to scatter our across the interior by 20Z-21Z, but should persist near the coast. VFR expected across the interior into this evening, but clouds will increase late tonight as a weak frontal system approaches the region.

KSEA . IFR or low MVFR in stratus through 19Z then ceilings gradually lifting to VFR around 21Z. VFR expected mid afternoon through late tonight with ceilings lowering again tonight ahead of approaching weak frontal system. Surface winds S-SW generally under 10 knots. 27

MARINE. Onshore flow weakens somewhat today as a weak surface trough slips southward along the Washington coast this morning then shifts inland late this afternoon. Onshore flow remains relatively light into Friday as weak trough offshore gradually moves toward the north Oregon coast Saturday afternoon. Another weak trough arrives on Sunday but again produces little in the way of significant wind. A weak surface ridge is expected to slide eastward across the waters on Monday. A more significant frontal system could affect the waters by Tuesday or Wednesday of next week, but confidence is not high at this time. 27

HYDROLOGY. No river flooding expected the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 5 PM PDT this afternoon 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.

Small Craft Advisory until noon PDT today for Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

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.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 24 mi48 min S 11 G 13 49°F 1013.5 hPa (+0.4)46°F
TCMW1 - 9446482 - Tacoma Met, WA 28 mi48 min S 4.1 G 6
TCNW1 - 9446484 - Tacoma, WA 28 mi48 min 51°F 49°F1014.3 hPa (+0.3)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Renton Municipal Airport, WA11 mi55 minS 710.00 miOvercast50°F42°F74%1014 hPa
Boeing Field - King County International Airport, WA15 mi55 minS 710.00 miOvercast49°F42°F77%1013.5 hPa
Seattle, Seattle-Tacoma International Airport, WA17 mi55 minS 610.00 miOvercast49°F43°F80%1013.7 hPa

Link to 5 minute data for KRNT

Wind History from RNT (wind in knots)
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Last 24hrS4SE3SE4SE3N7N4N8N6N7N7N5N4N7CalmNW3CalmSW3S6S6S7S7S5S7S7
1 day agoSE3S4CalmCalmN4NW6N9NW9NW10N9N8NW8NW9NW6NW6NW4NW4NW3CalmS3CalmCalmS4SE3
2 days agoS3SE3S4N4N5N6N6N6N7N6N5N3W4N4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
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Thu -- 02:36 AM PDT     10.78 feet High Tide
Thu -- 04:33 AM PDT     Moonset
Thu -- 06:06 AM PDT     Sunrise
Thu -- 08:58 AM PDT     5.42 feet Low Tide
Thu -- 01:22 PM PDT     7.79 feet High Tide
Thu -- 02:34 PM PDT     Moonrise
Thu -- 08:09 PM PDT     Sunset
Thu -- 08:12 PM PDT     1.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.29.810.610.710.29.17.86.55.75.45.76.47.27.77.7764.63.11.91.31.62.84.7

Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
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Thu -- 02:26 AM PDT     -0.00 knots Slack
Thu -- 04:33 AM PDT     Moonset
Thu -- 05:52 AM PDT     -0.61 knots Max Ebb
Thu -- 06:07 AM PDT     Sunrise
Thu -- 10:11 AM PDT     0.00 knots Slack
Thu -- 11:03 AM PDT     0.11 knots Max Flood
Thu -- 01:10 PM PDT     -0.00 knots Slack
Thu -- 02:34 PM PDT     Moonrise
Thu -- 05:23 PM PDT     -0.66 knots Max Ebb
Thu -- 08:09 PM PDT     Sunset
Thu -- 09:00 PM PDT     0.00 knots Slack
Thu -- 11:27 PM PDT     0.57 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.30.1-0.2-0.4-0.6-0.6-0.5-0.4-0.2-00.10.10-0.1-0.4-0.5-0.7-0.6-0.5-0.3-00.30.5

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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