Saturday, August15, 2020
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Marine Weather and Tides
Neah Bay, 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 6:08AMSunset 8:34PM Saturday August 15, 2020 1:10 AM PDT (08:10 UTC) Moonrise 12:59AMMoonset 5:47PM Illumination 13% Phase: Waning Crescent; Moon at 26 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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PZZ130 West Entrance U.s. Waters Strait Of Juan De Fuca- 813 Pm Pdt Fri Aug 14 2020
Tonight..W wind 5 to 15 kt easing to 10 kt after midnight. Wind waves 2 ft or less. NW swell 4 ft at 8 seconds.
Sat..E wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 ft at 8 seconds.
Sat night..Light wind. Wind waves less than 1 ft. NW swell 4 ft at 8 seconds.
Sun..SE wind to 10 kt becoming N 5 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 ft at 10 seconds.
Sun night..NW wind 10 to 20 kt becoming ne 5 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 4 ft at 9 seconds.
Mon..NE wind to 10 kt becoming nw in the afternoon. Wind waves 2 ft or less. W swell 4 ft at 9 seconds.
Mon night..W wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less. W swell 3 ft at 9 seconds.
Tue..W wind 5 to 15 kt. Wind waves 2 ft or less. W swell 3 ft.
Wed..W wind 5 to 15 kt. Wind waves 2 ft or less. W swell 3 ft.
PZZ100 813 Pm Pdt Fri Aug 14 2020
Synopsis for the northern and central washington coastal and inland waters..Low level onshore flow tonight will turn northerly Saturday. The flow will go briefly offshore Saturday night into Sunday morning before turning back onshore Sunday afternoon. Varying degrees of onshore flow will continue Monday through the middle of next week.


7 Day Forecast for Marine Location Near Neah Bay, WA
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location: 49.53, -124.61     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 150250 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 750 PM PDT Fri Aug 14 2020

UPDATE. The forecast is still on track this evening and no major changes have been made. Only a few changes to the aviation and marine discussion found below.

SYNOPSIS. High pressure aloft will bring much warmer temperatures this weekend with Sunday on track to be the hottest day for interior locations. After Sunday, temperatures will be on the way back down to normal. A few showers are possible by the middle of the week as a weak trough moves through.

SHORT TERM /TONIGHT THROUGH MONDAY/. An upper ridge will build over the area this weekend with low level flow turning more northerly or even light offshore. This will allow temperatures to warm significantly. Highs will be mostly in the 80s on Saturday with lower 90s possible for the south interior and Cascade valleys. Sunday will be the hottest day for the interior with highs in the 90s commonplace and a few locations near 100.

There will be increasing south/southwest flow aloft on Sunday as the upper ridge axis shifts inland. This will open the door to a small shower threat for the Cascades Sunday afternoon and night. Any thunder threat appears to stay to the south and east of the area but there is a small, non-zero chance of some thunder over the Cascades during this time that will need to be monitored.

The upper ridge axis shifting inland will also allow for increasing low level onshore flow later Sunday and Sunday night. It will be hot for the interior as mentioned above but a flow reversal is likely at the coast with cooler temperatures. There should be a marine push Sunday night with stratus at the coast and partially inland Monday morning. Highs will cool on Monday, ending the impactful heat, but still be in the 80s for the interior.

There will also be fire concerns this weekend. Please see the fire weather section below for more details. There could also be some smoke coming up from the south Saturday night and Sunday but the extent of this is uncertain for now. Schneider

LONG TERM /TUESDAY THROUGH FRIDAY/. An upper trough will cross the area Tuesday and Wednesday with temperatures cooling to near normal by Wednesday. There could also be a few showers with the upper trough but mostly it looks dry. A weak ridge will build over the area Thursday and Friday with highs rising to slightly above normal. Schneider

AVIATION. Upper level ridge over the area with northwesterly flow aloft becoming southwesterly Saturday. Low level onshore flow tonight becoming northerly Saturday.

Clear skies across the area with the exception of some late night and morning patchy low clouds along the north coast.

KSEA . Clear skies. North winds 5 to 10 knots becoming northeast 4 to 8 knots after 06z. Felton/Kristell

MARINE. Low level onshore flow tonight will turn northerly Saturday. The flow will go briefly offshore Saturday night into Sunday morning before turning back onshore Sunday afternoon. Varying degrees of onshore flow will continue Monday through the middle of next week.

Small craft advisory north to northwest winds in the inner coastal waters tonight. Small craft advisory northerly winds developing in Puget Sound and Hood Canal Saturday afternoon then ease late Saturday evening. Felton

FIRE WEATHER. The Fire Weather Watch for the Cascades and Black Hills/Southwest Interior lowlands Saturday morning through Sunday evening has been upgraded to a Red Flag Warning. The Southeast Puget Sound Lowlands were also added to the warning.

Hot, dry and unstable conditions are forecast this weekend with temperatures reaching the 90s to near 100 Sunday and min humidities in the mid teens to 20s. Mid-level Haines will also reach a 6 or high potential for large fire growth. There is a small chance of thunder (around 5%) over the Cascades Sunday afternoon and evening.

HYDROLOGY. The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Red Flag Warning from 11 AM Saturday to 11 PM PDT Sunday for Black Hills and Southwest Interior Lowlands-Southeast Puget Sound Lowlands Generally Below 1500 Feet-West Slopes of the Central Cascades Generally above 1500 Feet-West Slopes of the North Cascades Generally above 1500 Feet.

Excessive Heat Watch from Sunday morning through Sunday evening for Bellevue and Vicinity-Bremerton and Vicinity-Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties-East Puget Sound Lowlands-Everett and Vicinity-Hood Canal Area-Lower Chehalis Valley Area-Seattle and Vicinity-Southwest Interior-Tacoma Area.

PZ . Small Craft Advisory until 2 AM PDT Saturday for Coastal Waters From James Island To Point Grenville Out 10 Nm.

Small Craft Advisory until 5 AM PDT Saturday for Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Small Craft Advisory from 2 PM to 11 PM PDT Saturday for Puget Sound and Hood Canal.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46131 - Sentry Shoal 33 mi131 min NW 5.8 G 7.8 66°F 1020.9 hPa (+0.4)
46146 - Halibut Bank 48 mi71 min Calm G 1.9 65°F 65°F1020.7 hPa (+0.2)

Wind History for Neah Bay, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Eastsound, Orcas Island Airport, WA107 mi16 minN 010.00 miFair59°F53°F82%1020.3 hPa

Link to 5 minute data for KORS

Wind History from ORS (wind in knots)
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Last 24hrS5S3Calm3S4CalmCalmSE4N3NW44N4N5N4N5N4N3NW3CalmSE3CalmS3CalmCalm
1 day agoSE4CalmS4CalmCalmS5S3S6S54N5333NE6S9S8S7
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2 days agoS5S5S5CalmS4CalmS55S6S55S5SW5S56S76S7S6S6S7S6S6S5

Tide / Current Tables for Hornby Island, British Columbia (2)
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Hornby Island
Click for Map
Sat -- 01:43 AM PDT     4.08 meters High Tide
Sat -- 01:59 AM PDT     Moonrise
Sat -- 06:10 AM PDT     Sunrise
Sat -- 09:49 AM PDT     1.23 meters Low Tide
Sat -- 05:35 PM PDT     4.49 meters High Tide
Sat -- 06:47 PM PDT     Moonset
Sat -- 08:34 PM PDT     Sunset
Sat -- 10:37 PM PDT     3.67 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.94.14.143.73.32.72.21.71.31.21.41.92.53.13.84.24.54.54.34.13.93.73.7

Tide / Current Tables for Denman Island, British Columbia (2)
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Denman Island
Click for Map
Sat -- 01:52 AM PDT     4.30 meters High Tide
Sat -- 01:59 AM PDT     Moonrise
Sat -- 06:11 AM PDT     Sunrise
Sat -- 09:38 AM PDT     1.11 meters Low Tide
Sat -- 05:20 PM PDT     4.41 meters High Tide
Sat -- 06:47 PM PDT     Moonset
Sat -- 08:34 PM PDT     Sunset
Sat -- 10:07 PM PDT     3.66 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.24.34.23.83.32.72.11.51.21.11.41.92.63.33.84.24.44.44.243.83.73.7

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 Seattle, WA (4,6,7,8)
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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.