Saturday, April4, 2020
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Marine Weather and Tides
Skykomish, 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 6:30AMSunset 7:37PM Saturday April 4, 2020 7:45 AM PDT (14:45 UTC) Moonrise 2:17PMMoonset 4:22AM Illumination 88% Phase: Waxing Gibbous; Moon at 11 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- 204 Am Pdt Sat Apr 4 2020
Today..Variable wind to 10 kt becoming N in the afternoon. Wind waves 2 ft or less.
Tonight..N wind 5 to 15 kt. Wind waves 2 ft or less. A slight chance of rain.
Sun..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less. A slight chance of rain.
Sun night..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
Mon night..Light wind. Wind waves less than 1 ft.
Tue..Light wind. Wind waves less than 1 ft.
Wed..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 204 Am Pdt Sat Apr 4 2020
Synopsis for the northern and central washington coastal and inland waters..Lighter north/northeast winds this weekend. Flow will turn onshore early next week as high pressure builds in.


7 Day Forecast for Marine Location Near Skykomish, WA
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location: 47.78, -121.05     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 041144 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 444 AM PDT Sat Apr 4 2020

SYNOPSIS. Unsettled and cool weather will persist into early next week. Expect hit or miss showers over the Inland Northwest, except for Saturday which looks dry. Occasional light accumulations of snow will occur during late night and early morning hours. Drier conditions develop Tuesday onward, with some milder temperatures.


DISCUSSION. Today: The region will be in a dry slow between the shortwave trough for yesterday and the Low currently positioned off the coast of Oregon. A zonal flow will push upper level moisture into the region but is only expected to produce some mid to upper level clouds throughout the day. Models are keeping the region precip free and slightly warmer than the yesterday. Winds will be fairly calm through the morning but increase into the low teens as the day progresses. Highs are expected in the 40s to low 50s.

Tonight and Sunday: The low as shifted to the Border of California and Oregon and will push a warm, saturated shortwave into the region during this period. Models are in fairly good agreement on the timing but differ on the moisture associated with the wave. Determining the precip type is tricky as the 850mb temps start a few degrees above 0C but then dip overnight to a couple degrees below 0C. Snow levels will vary with around 3000ft to 4500ft South of I-90 and around 1800f to lower for North of I-90. The Southern portions of Washington and the Lower Idaho Panhandle could start to see some light rain showers starting during the early evening hours. For areas North of I-90, the slower the moisture moves into the area the better chance for snow. The Leeside of the Cascades will be mostly spared of the precip except for some slight chance of isolated showers. As for snow amounts for Eastern Washington and Idaho Panhandle, most low lying areas could see a dusting to up an inch by Sunday morning. Higher terrains could get one to four inches. The GFS and NAM are hinting at a decent band possible for the Spokane to Lookout Pass. Confidence is low on this formation but areas could see localized higher amounts near two inches. The moisture is expected to continue to move through the Idaho Panhandle through Sunday and keep rain showers for the valleys and snow for the mountains before drying out overnight. Highs will be in 50s to low 60s. Lows expected in the 30s. /JDC

Monday and Tuesday: Monday wraps up the endless unsettled weather as an upper trough moves east and sets up a broad ridge over the Northwest. As the upper low breaks off early Monday, the remaining trough will bring a chance for precipitation through the afternoon. This precipitation will be in the form of rain/snow in valley locations and light snow in the mountains of far eastern Washington and ID Panhandle. Little to no accumulation expected. By late Monday, the dry and mild pattern begins as the ridge builds over the region. The eastern Cascades, Blues, and Palouse may have a breezy Monday and Tuesday, but nothing looks of concern.

Wednesday through Saturday: Dry and mostly clear conditions continue through most of the week. As a low moves into Canada, models are hinting at this precipitation dropping into parts of the Inland Northwest late Friday - Sunday. With little agreement between models, low confidence in the chance and amount of precipitation as the week wraps up. If the temperatures continue to remain mild, which they should, most precipitation will be in the form of rain other than at the mountain crests. Temperatures will be back near or slightly above normal. Varying models show quite a range in how warm we will get, but there is agreement that we will have a warming trend back into near normal temperatures. JS

AVIATION. 12Z TAFS: A cool, dry airmass is moving into the region bringing a precipitation free day. Light winds and mid-level clouds are expected for the region. All TAF sites will remain VFR until tomorrow night with incoming precipitation and low cloud cover. JS

PRELIMINARY POINT TEMPS/POPS. Spokane 47 32 51 33 54 34 / 0 50 30 10 10 0 Coeur d'Alene 48 32 51 34 52 34 / 0 50 30 10 30 0 Pullman 49 34 53 36 52 35 / 0 60 40 20 30 0 Lewiston 56 40 60 41 57 40 / 0 50 20 20 30 0 Colville 50 30 53 32 57 32 / 0 20 20 10 10 0 Sandpoint 46 32 48 34 49 34 / 0 30 50 20 30 0 Kellogg 45 32 48 35 48 34 / 10 60 60 30 40 10 Moses Lake 52 35 59 34 62 35 / 0 30 10 10 10 0 Wenatchee 49 36 57 36 59 37 / 0 20 10 10 10 0 Omak 50 33 55 34 57 35 / 0 10 10 10 10 0

OTX WATCHES/WARNINGS/ADVISORIES. ID . None. WA . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 74 mi46 min SSW 2.9 G 4.1 38°F 1012.3 hPa (-1.5)36°F
TCNW1 - 9446484 - Tacoma, WA 80 mi46 min 37°F 48°F1012.6 hPa (-1.4)

Wind History for Seattle, Puget Sound, WA, WA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA37 mi1.8 hrsN 010.00 miA Few Clouds23°F19°F88%1010.8 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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W7533CalmCalmCalmCalmCalmCalmCalm3
1 day agoCalm334Calm4--W73--6465366W8
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2 days agoCalm33344364445334344343Calm3Calm

Tide / Current Tables for Marysville, Quilceda Creek, Washington
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Marysville
Click for Map
Sat -- 03:35 AM PDT     10.79 feet High Tide
Sat -- 05:27 AM PDT     Moonset
Sat -- 06:39 AM PDT     Sunrise
Sat -- 09:46 AM PDT     5.23 feet Low Tide
Sat -- 02:15 PM PDT     8.65 feet High Tide
Sat -- 03:21 PM PDT     Moonrise
Sat -- 07:44 PM PDT     Sunset
Sat -- 09:26 PM PDT     0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.67.99.710.610.710.197.66.35.45.35.86.888.68.57.66.34.62.81.20.30.41.6

Tide / Current Tables for Everett, Washington
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Everett
Click for Map
Sat -- 03:26 AM PDT     11.13 feet High Tide
Sat -- 05:27 AM PDT     Moonset
Sat -- 06:39 AM PDT     Sunrise
Sat -- 09:16 AM PDT     5.82 feet Low Tide
Sat -- 02:06 PM PDT     8.92 feet High Tide
Sat -- 03:21 PM PDT     Moonrise
Sat -- 07:44 PM PDT     Sunset
Sat -- 08:56 PM PDT     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.68.710.311.11110.397.66.45.866.77.68.58.98.67.664.12.20.70.20.82.5

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 Spokane, WA (10,2,3,4)
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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.