Friday, August14, 2020
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Marine Weather and Tides
Whidbey Island Station, 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 6:02AMSunset 8:27PM Friday August 14, 2020 10:51 AM PDT (17:51 UTC) Moonrise 12:12AMMoonset 4:35PM Illumination 18% Phase: Waning Crescent; Moon at 25 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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PZZ132 East Entrance U.s. Waters Strait Of Juan De Fuca- 857 Am Pdt Fri Aug 14 2020
Today..W wind 5 to 15 kt becoming to 10 kt in the afternoon. Wind waves 2 ft or less.
Tonight..W wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..NW wind to 10 kt. Wind waves 1 ft or less.
Sat night..W wind to 10 kt. Wind waves 1 ft or less.
Sun..Light wind. Wind waves less than 1 ft.
Sun night..SW wind 10 to 20 kt. Wind waves 1 to 3 ft.
Mon..W wind to 10 kt. Wind waves 1 ft or less.
Tue..W wind to 10 kt. Wind waves 1 ft or less.
PZZ100 857 Am Pdt Fri Aug 14 2020
Synopsis for the northern and central washington coastal and inland waters..High pressure over the northeastern pacific and lower pressure inland will maintain onshore flow through the strait of juan de fuca and northerly winds over the coastal waters today. Thermal low pressure builds up oregon coast tonight, before expanding over western washington Saturday for brief offshore flow. Expect a southerly wind reversal over the coastal waters late Sunday.


7 Day Forecast for Marine Location Near Whidbey Island Station, WA
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location: 48.32, -122.83     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 141631 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 931 AM PDT Fri Aug 14 2020

SYNOPSIS. Upper level ridge over the area through the weekend with temperatures aloft increasing through Sunday. Light onshore flow today will turn northerly Saturday with light offshore flow Sunday morning. Near record highs on Sunday. Temperatures will cool beginning Monday with increasing onshore flow.

SHORT TERM /TODAY THROUGH SUNDAY/. Satellite imagery shows just a patch of low clouds along the north coast otherwise clear skies across the area this morning. Temperatures at 9 am/16z were in the mid 50s to mid 60s.

No change in the forecast this morning. Upper level ridge over the area today will remain in place through the weekend. Temperatures aloft warming from around plus 10-14C at 850 mb this morning to plus 20-23C Sunday afternoon. Low level onshore flow today becoming northerly Saturday. Low level flow turning briefly offshore Sunday morning but with the thermally induced trough shifting inland the low level flow turns back onshore Sunday afternoon. Highs near normal today, 70s to lower 80s, warming to the 80s and lower 90s for the interior Saturday and 80s and 90s for Sunday. There is a chance some locations in the Southwest Interior could hit 100 degrees Sunday. Cooler along the coast with highs peaking in the lower 80s on Saturday. Felton

LONG TERM /MONDAY THROUGH THURSDAY/. Previous discussion follows. High pressure will shift east and inland on Monday and Tuesday for a little relief from the heat. The coast especially will feel the relief as onshore flow and marine clouds keeps temps in the 60s. The interior will still see relatively warm conditions highs in the 80s. However, the heat risk will be lower overall.

A stronger marine push Tuesday night and Wednesday will bring cooler marine air inland for a return toward normal. A weak passing trough may along bring a few showers to the area. Similar conditions are expected for Thursday. 33

FIRE WEATHER. A Fire Weather Watch remains in effect for the Cascades and Black Hills/Southwest Interior lowlands Saturday morning through Sunday evening.

Hot, dry and unstable conditions are forecast this weekend with temperatures reaching the 90s to near 100 Sunday and min humidities in the teens to 20s. Mid-level Haines will also reach a 6 or high potential for large fire growth. Felton/33

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

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

KSEA . Clear skies. Northeast winds 4 to 8 knots late night and morning hours becoming north 8 to 12 knots 21z-04z. Felton

MARINE. High pressure over the northeastern Pacific and lower pressure inland will maintain onshore flow through the Strait of Juan de Fuca and northerly winds over the coastal waters today. Low level flow turning northerly Saturday with a brief spell of offshore flow Saturday night into early Sunday morning. Onshore flow returns later Sunday with onshore flow continuing into the first part of next week. Felton

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

CLIMATE. Here are a few record highs for Sunday . Seattle 98 set in 1967, Olympia 96 set in 2012, Bellingham 89 set in 1967. Felton

SEW WATCHES/WARNINGS/ADVISORIES. WA . 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.

Fire Weather Watch from Saturday morning through Sunday evening for Black Hills and Southwest Interior Lowlands-West Slopes of the Central Cascades Generally above 1500 Feet-West Slopes of the North Cascades Generally above 1500 Feet.

PZ . Small Craft Advisory from 1 PM this afternoon to 11 PM PDT this evening for Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SISW1 - Smith Island, WA 0 mi21 min W 7 G 8
46088 - New Dungeness, WA (Hein Bank) 19 mi31 min WSW 5.8 G 7.8 56°F1 ft1024.3 hPa
PBFW1 - Padilla Bay Reserve, WA 22 mi81 min S 2.9 63°F 1024 hPa54°F
46125 30 mi28 min 62°F 1023.3 hPa52°F
46118 31 mi56 min S 7.8 58°F 1023.1 hPa58°F
46267 42 mi51 min 56°F1 ft
46120 45 mi29 min NNW 3.9 58°F 1023.1 hPa53°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA10 mi55 minW 510.00 miMostly Cloudy62°F53°F73%1025.1 hPa
Friday Harbor Airport, WA17 mi58 minESE 410.00 miFair62°F54°F75%1023.9 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA24 mi56 minS 310.00 miFair70°F53°F57%1024 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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Last 24hrW8SW7W8W8W8W8W7W6W5SW3SW4SW7SW6SW5CalmSW3SW7CalmSE3E4SE4SW4SW6W5
1 day agoW7W7W7NW6W6NW6W45W4CalmSW6SW8SW6SW5SW5SW9W10W12W12SW7W6W9SW6SW6
2 days agoW3NW5NW6W7W5W6SW13SW9W11W20
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W16W16W13W123SW7SW6SW7SW7SW9SW8

Tide / Current Tables for Smith Island, Washington
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Smith Island
Click for Map
Fri -- 01:12 AM PDT     Moonrise
Fri -- 06:04 AM PDT     Sunrise
Fri -- 06:50 AM PDT     -0.08 feet Low Tide
Fri -- 04:00 PM PDT     6.19 feet High Tide
Fri -- 05:35 PM PDT     Moonset
Fri -- 07:36 PM PDT     5.57 feet Low Tide
Fri -- 08:25 PM PDT     Sunset
Fri -- 11:50 PM PDT     6.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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65.54.63.420.90.1-0.10.20.91.82.83.84.85.666.26.15.85.65.65.75.96.1

Tide / Current Tables for Smith Island, 1.4 miles SSW of, Washington Current
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Smith Island
Click for MapFlood direction 90 true
Ebb direction 280 true

Fri -- 12:23 AM PDT     -0.00 knots Slack
Fri -- 01:12 AM PDT     Moonrise
Fri -- 05:29 AM PDT     -1.08 knots Max Ebb
Fri -- 06:05 AM PDT     Sunrise
Fri -- 09:04 AM PDT     0.00 knots Slack
Fri -- 12:18 PM PDT     0.68 knots Max Flood
Fri -- 04:09 PM PDT     -0.00 knots Slack
Fri -- 05:35 PM PDT     Moonset
Fri -- 07:02 PM PDT     -0.50 knots Max Ebb
Fri -- 08:25 PM PDT     Sunset
Fri -- 10:14 PM PDT     0.00 knots Slack
Fri -- 11:39 PM PDT     0.09 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0-0.1-0.4-0.7-0.9-1.1-1-0.8-0.5-00.30.60.70.70.50.30-0.2-0.4-0.5-0.4-0.2-00.1

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 (13,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.