Wednesday, August5, 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 5:53AMSunset 8:45PM Wednesday August 5, 2020 5:49 PM PDT (00:49 UTC) Moonrise 9:12PMMoonset 6:49AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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- 238 Pm Pdt Wed Aug 5 2020
.small craft advisory in effect from 6 pm pdt this evening through Thursday evening...
Tonight..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely after midnight.
Thu..SW wind 15 to 25 kt rising to 20 to 30 kt in the afternoon. Wind waves 3 to 5 ft. Rain likely in the morning then a chance of showers in the afternoon.
Thu night..W wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of showers in the evening then a slight chance of showers after midnight.
Fri..S wind 5 to 15 kt. Wind waves 2 ft or less.
Fri night..W wind 5 to 15 kt becoming N to 10 kt after midnight. Wind waves 2 ft or less.
Sat..SW wind 15 to 25 kt becoming nw 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft.
Sat night..W wind 10 to 20 kt becoming sw to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Sun..W wind to 10 kt. Wind waves 1 ft or less.
Mon..Light wind becoming sw 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 238 Pm Pdt Wed Aug 5 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue this week with the strongest onshore push on Thursday as a cold front moves inland.


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 052107 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 207 PM PDT Wed Aug 5 2020

SYNOPSIS. High pressure aloft will weaken as a frontal system approaches the region. The front will bring some light rain to the area late tonight and Thursday morning. Weak troughing will persist over Western Washington into Saturday for generally dry but cooler conditions. High pressure will gradually rebuild early next week for a trend toward somewhat warmer conditions.

SHORT TERM /TONIGHT THROUGH SATURDAY/. High pressure aloft is weakening and shifting eastward this afternoon as a frontal system approaches. The front looks unimpressive on satellite imagery, but clouds will increase later this evening with some light rain reaching the coast after midnight. Recent runs of the NAM are trending downward with QPF for the interior of Western Washington, but coastal areas and the north interior could still see about a quarter to half inch of rainfall. Further south, amounts will be lighter with perhaps a tenth of an inch or less. There will be some decent post-frontal onshore and that is likely to lead a convergence zone that will persist into Thursday afternoon. Along with the clouds and precip will come considerably cooler temperatures with most areas remaining in the 60s.

The front and upper trough move east of the region Thursday night, but zonal flow lingers behind it Friday into Saturday. A weak system may clip the region Friday night, but shouldn't generate much in the way of precip. Friday and Saturday will feature somewhat warmer temperatures, but onshore flow along with considerable night and morning clouds will cap high temperatures to a little below normal.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Upper ridging will strengthen over Western Washington Sunday into Monday. 500 millibar heights will rebound into the 580s dam with low level onshore flow weakening somewhat. This will give temperatures a boost back to around seasonal norms while keeping morning clouds restricted mostly to the coast. Another upper trough is expected to move by to our north Tuesday and Wednesday with the main effect being an increase in onshore flow for cooler temperatures and more night/morning clouds -- in other words, a fairly typical summer pattern. 27

AVIATION. Southwest flow aloft as an upper trough approaches the area through tonight. VFR this afternoon with MVFR in spots along the coast. VFR into this evening with increasing high clouds across the area as a front approaches. The cold front will bring rain tonight to the coast with low clouds and some rain pushing into the interior areas by early Thursday morning. IFR/MVFR cigs by early Thursday morning for the interior with the front. LIFR possible in spots. Some convergence zone activity possible across the central Puget Sound area Thursday afternoon before drier weather. South to southwest winds 5 to 10 knots into tonight with winds to 14 knots Thursday morning with the front, a few gusts to 20 knots possible, especially across the northern Puget Sound area today. JD

KSEA . VFR cigs into tonight. Front moving through Thursday morning with low clouds and some rain. MVFR by 11z-12z with rain chances mainly in the morning. Winds south to southwest 5 to 12 knots with a few gusts Thursday to 20 knots possible by afternoon. JD

MARINE. Onshore flow through this week. Small Craft Advisory winds for the central and eastern portions of the Strait of Juan de Fuca and northern inland waters through tonight. A stronger front will move through on Thursday for Gales possible through the Strait of Juan de Fuca on Thursday. Gale Watch posted for this area. SCA winds otherwise for the northern inland waters with the front. A front will diminish over the coastal waters Friday night. Onshore flow through the weekend with NW flow for the coastal waters this weekend for possible SCA winds. JD

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 . None. PZ . Gale Watch from Thursday morning through Thursday evening for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 7 AM PDT Thursday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 6 PM this evening to 10 PM PDT Thursday for Northern Inland Waters Including The San Juan Islands.



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 mi74 min NNE 6 G 7 57°F 51°F1011.1 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi30 min SW 18 G 19 52°F2 ft1010.7 hPa
CHYW1 - 9449424 - Cherry Point, WA 27 mi56 min 1010.9 hPa
CPMW1 27 mi56 min S 8 G 12 62°F
SISW1 - Smith Island, WA 27 mi30 min WSW 8 G 17 57°F 1011.3 hPa53°F
46118 31 mi55 min SSW 14 63°F 1010 hPa63°F
PBFW1 - Padilla Bay Reserve, WA 38 mi80 min W 6 74°F 1012 hPa58°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi74 min 63°F 52°F1012.2 hPa
46267 39 mi80 min 52°F3 ft
PTWW1 - 9444900 - Port Townsend, WA 41 mi56 min WSW 8.9 G 14 69°F 55°F1012.1 hPa

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor Airport, WA10 mi57 minVar 63.00 miFair with Haze74°F55°F54%1011 hPa
Eastsound, Orcas Island Airport, WA15 mi55 minS 1010.00 miFair73°F55°F53%1010.2 hPa

Link to 5 minute data for KFHR

Wind History from FHR (wind in knots)
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Last 24hrSW5SW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4SE5E4CalmS7SW7SW10SW8SW7E76
1 day agoSW95CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3N7N8N10N11N8SW7SW5W8
2 days agoW6SW6SW7W3CalmCalmNE3CalmCalmCalmCalmNE3CalmCalmSE4SE3CalmSE3SE5SE6SW5SW8SW11SW10
G14

Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Wed -- 12:57 AM PDT     4.87 feet Low Tide
Wed -- 05:32 AM PDT     6.36 feet High Tide
Wed -- 05:53 AM PDT     Sunrise
Wed -- 07:50 AM PDT     Moonset
Wed -- 12:40 PM PDT     -0.82 feet Low Tide
Wed -- 08:05 PM PDT     7.50 feet High Tide
Wed -- 08:43 PM PDT     Sunset
Wed -- 10:11 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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54.95.15.55.96.36.35.84.83.31.60.2-0.7-0.8-0.112.64.25.877.57.26.55.6

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 -- 01:50 AM PDT     0.00 knots Slack
Wed -- 03:23 AM PDT     0.95 knots Max Flood
Wed -- 04:59 AM PDT     -0.00 knots Slack
Wed -- 05:52 AM PDT     Sunrise
Wed -- 07:49 AM PDT     Moonset
Wed -- 09:56 AM PDT     -3.76 knots Max Ebb
Wed -- 01:10 PM PDT     0.00 knots Slack
Wed -- 03:59 PM PDT     2.61 knots Max Flood
Wed -- 06:57 PM PDT     -0.00 knots Slack
Wed -- 08:42 PM PDT     Sunset
Wed -- 10:10 PM PDT     Moonrise
Wed -- 11:07 PM PDT     -2.90 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.3-1.20.20.90.8-0-0.9-2-2.9-3.6-3.8-3.3-2-0.31.12.22.62.21.3-0.1-1.2-2.1-2.7-2.9

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 (20,4,5,8)
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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.