Wednesday, January22, 2020
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Marine Weather and Tides
Friday Harbor, 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 7:53AMSunset 4:56PM Tuesday January 21, 2020 11:43 PM PST (07:43 UTC) Moonrise 5:22AMMoonset 2:01PM Illumination 9% Phase: Waning Crescent; Moon at 27 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 846 Pm Pst Tue Jan 21 2020
.small craft advisory in effect through late Wednesday night...
Tonight..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain.
Wed..SE wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely in the morning then rain in the afternoon.
Wed night..SE wind 15 to 25 kt rising to 20 to 30 kt after midnight. Wind waves 2 to 5 ft. Rain.
Thu..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Thu night..SE wind 10 to 20 kt rising to 15 to 25 kt after midnight. Wind waves 2 to 4 ft.
Fri..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri night..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..SE wind to 10 kt. Wind waves 1 ft or less.
Sun..SE wind to 10 kt. Wind waves 1 ft or less.
PZZ100 846 Pm Pst Tue Jan 21 2020
Synopsis for the northern and central washington coastal and inland waters..A warm front will lift north across the area on Wednesday, stall over the area Wednesday night, then gradually shift inland Thursday and Thursday night. Active weather will continue through the remainder of the week as additional weather systems moves across the area.


7 Day Forecast for Marine Location Near Friday Harbor, WA
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location: 48.62, -123.15     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 220454 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 854 PM PST Tue Jan 21 2020

SYNOPSIS. Wet weather for the rest of the week into the weekend as a series of systems moves through the area. Snow levels near passes into Wednesday will rise steadily later Wednesday into Thursday. Periods of heavy rain will lead to rising rivers and the potential for river flooding later this week.

SHORT TERM /TONIGHT THROUGH FRIDAY/. An upper trough brought strong showers, some with rotation near the coast, earlier this afternoon and evening. The strong showers have been fading in the last couple of hours as the air mass becomes more stable but plenty of garden variety showers will continue this evening before tapering after midnight. Snow levels have lowered to between 2500 and 3000 feet this evening with snow, heavy at times in the mountains. Snow should gradually taper later tonight as the upper trough moves inland.

There won't be much of a break in the wet weather as a warm front moves into the area on Wednesday for more rainy weather. This feature will hang up over the area into Wednesday night then gradually shift inland Thursday and Thursday night. This prolonged period of rain, heavy at times in the mountains, combined with much higher snow levels will lead to river flooding concerns. See the hydrology section below for more details.

Steady and heavier rain should turn more showery and lighten up on Friday as an upper trough moves through the area. Snow levels will also drop to more seasonable levels. River flooding concerns will continue however. Schneider

LONG TERM /SATURDAY THROUGH TUESDAY/. Previous discussion . The threat of river flooding continues through Saturday under warm, moist SW flow. A brief break in the action Saturday night or Sunday will bring a respite. Snow levels will lower Sunday night and Monday as a cooler trough pushes inland. This may bring a period of heavy snow in the mountains. The pattern turns warm and wet again early next week with the arrival of a strong warm front. This would renew the flood threat across the region. We may also see some wind impacts, especially along the coast and North Interior. All in all, expect more active weather through this period. 33

AVIATION. An upper trough will shift inland tonight with an upper ridge moving over the on Wednesday. The flow aloft will be westerly. A warm front will lift north into the area on Wednesday. The air mass is moist and unstable. It will become stable later tonight and Wednesday.

There will be a mix of low and mid clouds tonight with lower ceilings generally in showers. Ceilings will lower further with widespread low clouds on Wednesday as a warm front arrives.

KSEA . Low clouds in showers this evening will probably lift a bit after midnight as showers decrease. Ceilings will lower again Wednesday morning as a warm front brings rain. Southerly wind 10-15 knots will ease and become more easterly on Wednesday. Schneider

MARINE. A warm front will lift north across the area on Wednesday, stall over the area Wednesday night, then gradually shift inland Thursday and Thursday night. Most areas will have small craft advisory strength winds through this period. Active weather will continue through the remainder of the week as additional weather systems moves across the area. Schneider

HYDROLOGY. A period of warming, rising snow levels, and heavy rain in the mountains will force sharp rises on the rivers flowing off the Olympics and Cascades in western Washington. Snow levels will rise to around 5,000 to 7,000 feet with 3 to 9 inches of rain in the mountains Wednesday through Saturday. Minor flooding is possible on several rivers as a result. Rivers may be flowing high through the rest of the weekend. Another period of warm and wet weather may renew the river flooding threat early next week.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Flood Watch from Thursday afternoon through Friday afternoon for Bellevue 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-Seattle and Vicinity-Southwest Interior-Tacoma Area-Western Skagit County-Western Whatcom County.

Winter Weather Advisory until 10 AM PST Wednesday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties.

Winter Storm Warning until 4 AM PST Wednesday for Cascades of Whatcom and Skagit Counties.

Flood Watch from Wednesday evening through late Thursday night for Admiralty Inlet Area-Central Coast-Eastern Strait of Juan de Fuca-Hood Canal Area-Lower Chehalis Valley Area- North Coast-Olympics-Western Strait of Juan De Fuca.

Winter Weather Advisory until 4 AM PST Wednesday for Olympics.

PZ . Small Craft Advisory until 4 AM PST Thursday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm-Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-Grays Harbor Bar.

Gale Warning until 8 PM PST this evening for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville 10 To 60 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Small Craft Advisory until midnight PST tonight for East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 1 PM Wednesday to 4 AM PST Thursday for East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 4 AM PST Thursday for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory from 10 AM Wednesday to 4 AM PST Thursday for West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 1 PM to 10 PM PST Wednesday for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 4 AM PST Thursday for Admiralty Inlet.

Small Craft Advisory until 10 AM PST Wednesday 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
FRDW1 - 9449880 - Friday Harbor, WA 9 mi68 min 47°F1009.9 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi44 min ESE 9.7 G 14 45°F 1010.9 hPa41°F
CHYW1 - 9449424 - Cherry Point, WA 27 mi62 min 1010.1 hPa
CPMW1 27 mi62 min 45°F
CPNW1 27 mi92 min 44°F
SISW1 - Smith Island, WA 27 mi34 min SE 16 G 19 45°F 1010.5 hPa40°F
46118 31 mi49 min SSW 19 43°F 1009.7 hPa43°F
PBFW1 - Padilla Bay Reserve, WA 38 mi74 min S 9.9 45°F 1010 hPa42°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi68 min 41°F 46°F1009.4 hPa
PTWW1 - 9444900 - Port Townsend, WA 41 mi62 min 44°F 46°F1010.8 hPa

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor Airport, WA10 mi51 minSE 910.00 miLight Rain44°F42°F93%1010.3 hPa
Eastsound, Orcas Island Airport, WA15 mi49 minSSE 86.00 miLight Rain45°F44°F100%1009.8 hPa

Link to 5 minute data for KFHR

Wind History from FHR (wind in knots)
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Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Wed -- 04:38 AM PST     8.29 feet High Tide
Wed -- 06:25 AM PST     Moonrise
Wed -- 07:54 AM PST     Sunrise
Wed -- 09:16 AM PST     6.72 feet Low Tide
Wed -- 01:31 PM PST     7.75 feet High Tide
Wed -- 02:50 PM PST     Moonset
Wed -- 04:54 PM PST     Sunset
Wed -- 09:21 PM PST     -1.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.44.15.87.38.18.37.97.46.96.76.87.17.47.77.77.36.34.72.91-0.3-1-0.8-0

Tide / Current Tables for Limestone Point, Spieden Channel, Washington Current
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Limestone Point
Click for MapFlood direction 85 true
Ebb direction 283 true

Wed -- 12:06 AM PST     2.88 knots Max Flood
Wed -- 03:14 AM PST     -0.01 knots Slack
Wed -- 06:25 AM PST     Moonrise
Wed -- 07:33 AM PST     -2.44 knots Max Ebb
Wed -- 07:53 AM PST     Sunrise
Wed -- 10:18 AM PST     0.00 knots Slack
Wed -- 11:46 AM PST     0.90 knots Max Flood
Wed -- 01:12 PM PST     -0.00 knots Slack
Wed -- 02:50 PM PST     Moonset
Wed -- 04:54 PM PST     Sunset
Wed -- 06:34 PM PST     -4.32 knots Max Ebb
Wed -- 09:56 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.92.61.60.3-0.8-1.6-2.1-2.4-2.4-1.7-0.40.60.90.2-0.8-1.9-3-3.8-4.3-4.2-3.5-20.11.7

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 (2,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.