Saturday, November28, 2020
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Marine Weather and Tides
Leavenworth, 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 7:21AMSunset 4:16PM Friday November 27, 2020 11:20 PM PST (07:20 UTC) Moonrise 3:17PMMoonset 4:31AM Illumination 96% Phase: Waxing Gibbous; Moon at 13 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- 840 Pm Pst Fri Nov 27 2020
.small craft advisory in effect until 10 pm pst this evening...
Tonight..S wind 20 to 30 kt easing to 10 to 20 kt after midnight. Wind waves 3 to 5 ft subsiding to 1 to 3 ft after midnight. A slight chance of rain in the evening then rain after midnight.
Sat..Light wind. Wind waves less than 1 ft. A slight chance of rain in the morning.
Sat night..Light wind. Wind waves less than 1 ft.
Sun..Light wind becoming se to 10 kt in the afternoon. Wind waves 1 ft or less.
Sun night..S wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Mon..S wind 15 to 25 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.
Mon night..Variable wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Tue..Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less.
Wed..N wind 5 to 15 kt becoming variable. Wind waves 2 ft or less.
PZZ100 840 Pm Pst Fri Nov 27 2020
Synopsis for the northern and central washington coastal and inland waters..A frontal system will move through the area tonight. Weak high pressure will move over the area on Saturday then shift inland on Sunday. A second vigorous frontal system will move through the area Sunday night or Monday morning followed by a good shot of onshore flow later Monday. Weak high pressure will move over the area Monday night then offshore flow will develop on Tuesday and Wednesday.


7 Day Forecast for Marine Location Near Leavenworth, WA
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location: 47.7, -120.91     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 280550 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 950 PM PST Fri Nov 27 2020

SYNOPSIS. The remainder of the holiday weekend will be seasonably cool and mainly dry. The only exception will be light snow to the Cascade Passes and Idaho Panhandle mountains overnight into Saturday morning. The next system will track through the region on Monday and should deliver a good chance of precipitation for most locations. Much of the precipitation will consist of snow with light amounts, except for the possibility of moderate snow near the Cascades. The remainder of next week looks dry with light winds and probably low clouds and fog.

DISCUSSION. Evening update to the forecast to better align current winds and temps to the forecast.

The weak front is still on track to move through the region from the west to east overnight bringing mostly light precipitation, if any, to the Basin and Palouse areas and focusing on the Cascade Crest and later on into the northern valleys in Northeast Washington and into the Idaho Panhandle. What looks like a rather quick moving front, winds are already picking up ahead of the front in the Blues and the Palouse. Areas in the Okanogan Valley are also seeing some increase in the winds this evening. Places in the western part of the Columbia Basin are seeing continued low stratus and fog. Confidence is growing that these areas will not scour out the fog until at least mid day Saturday with the band of precip and front moving through overnight. 850mb winds are going to be favorable for breezy conditions through about 16z Saturday out of the west. The forecast still looks on track for the Cascades and Crest elevations to see the best chances for overnight snow accumulation, and then moving into the Idaho Panhandle by late morning for lighter amounts. Most of the lowland areas across the Basin will be missed or may see just enough to wet the grounds.

The remainder of the weekend will be seasonably cool and mostly dry. /Dewey

AVIATION. 06Z TAFS: A weak system moves in late tonight into Saturday morning. Ahead of it low clouds and fog will persist near MWH and EAT, with IFR conditions. As the front moves in overnight into Saturday morning this may help lift the conditions to MVFR here, but confidence it low with the better chance for improvement developing after 18-20Z. Toward GEG/SFF/COE/PUW/LWS the threat of light precipitation develops toward 11-15z and starts to exit between 16-18Z. This is expected to come with some MVFR conditions, with possible IFR conditions with any precipitation. However the overall risk of precipitation is limited at TAF sites, with the highest risk around COE and PUW. The conditions are expected to improve some in the afternoon, except around PUW where moisture from the passing precipitation threat may hold the MVFR conditions in place. Confidence in improvement is medium. Look for the best threat of snow around the Cascades late tonight/early Saturday and Idaho Panhandle mountains by Saturday morning to early afternoon, where mountain obscurations are expected. /Dewey


PRELIMINARY POINT TEMPS/POPS. Spokane 30 42 26 43 27 39 / 0 20 0 0 0 30 Coeur d'Alene 30 41 26 43 27 40 / 0 20 0 0 0 30 Pullman 30 41 26 43 28 41 / 0 20 0 0 0 30 Lewiston 34 45 28 46 31 46 / 0 10 0 0 0 20 Colville 27 41 23 40 24 38 / 10 10 0 0 10 30 Sandpoint 31 38 27 40 27 38 / 10 40 0 0 0 40 Kellogg 33 39 28 43 30 40 / 0 50 0 0 0 40 Moses Lake 28 45 23 43 26 39 / 0 10 0 0 0 20 Wenatchee 31 43 29 40 31 41 / 10 0 0 0 10 40 Omak 29 42 26 38 29 37 / 10 0 0 0 10 30

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 81 mi81 min S 22 G 24 49°F 1020.6 hPa (+1.1)42°F
TCMW1 - 9446482 - Tacoma Met, WA 85 mi51 min S 4.1 G 8.9

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, WA36 mi25 minW 8 G 166.00 miOvercast with Haze36°F30°F79%1020.9 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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Last 24hr3334CalmCalm3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmCalmCalmCalm4W8
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1 day ago436
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444--3SW7554465434454554

Tide / Current Tables for Marysville, Quilceda Creek, Washington
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Marysville
Click for Map
Sat -- 04:41 AM PST     9.94 feet High Tide
Sat -- 05:42 AM PST     Moonset
Sat -- 07:34 AM PST     Sunrise
Sat -- 10:05 AM PST     5.50 feet Low Tide
Sat -- 03:03 PM PST     10.14 feet High Tide
Sat -- 03:42 PM PST     Moonrise
Sat -- 04:18 PM PST     Sunset
Sat -- 10:26 PM PST     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.74.97.18.89.79.99.48.375.95.55.96.98.49.610.19.88.87.152.8100.1

Tide / Current Tables for Everett, Washington
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Everett
Click for Map
Sat -- 04:32 AM PST     10.26 feet High Tide
Sat -- 05:42 AM PST     Moonset
Sat -- 07:34 AM PST     Sunrise
Sat -- 09:35 AM PST     6.12 feet Low Tide
Sat -- 02:54 PM PST     10.46 feet High Tide
Sat -- 03:42 PM PST     Moonrise
Sat -- 04:19 PM PST     Sunset
Sat -- 09:56 PM PST     -0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.65.87.99.410.110.29.58.376.36.26.87.99.110.110.59.98.76.74.42.10.4-0.10.5

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
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.