Thursday, July9, 2020
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Marine Weather and Tides
Portsend, 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 5:18AMSunset 9:13PM Thursday July 9, 2020 12:40 AM PDT (07:40 UTC) Moonrise 11:06PMMoonset 9:05AM Illumination 85% Phase: Waning Gibbous; Moon at 19 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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PZZ134 Admiralty Inlet- 823 Pm Pdt Wed Jul 8 2020
Tonight..NW wind 10 to 20 kt becoming variable 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of rain in the evening then rain likely after midnight.
Thu..S wind to 10 kt becoming nw in the afternoon. Wind waves 1 ft or less. Rain.
Thu night..NW wind to 10 kt. Wind waves 1 ft or less. A chance of rain.
Fri..Light wind becoming variable to 10 kt in the afternoon. Wind waves 1 ft or less.
Fri night..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..Variable wind to 10 kt becoming nw in the afternoon. Wind waves 2 ft or less.
Sat night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Sun..Variable wind to 10 kt becoming nw. Wind waves 1 ft or less.
Mon..Light wind becoming nw to 10 kt. Wind waves 1 ft or less.
PZZ100 823 Pm Pdt Wed Jul 8 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue through the upcoming weekend as high pressure remains centered offshore.


7 Day Forecast for Marine Location Near Portsend, WA
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location: 48.1, -122.76     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 090310 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 810 PM PDT Wed Jul 8 2020

UPDATE. Dry weather for most of Western Washington this evening with increasing clouds as a front approaches the area. Rain has moved onshore across portions of the north coast and into the Strait of Juan de Fuca. Light rain will slide east through tonight into tomorrow morning with the best chance for steadier rain across northern areas and the coast. Mostly cloudy on Thursday with temperatures in the upper 60s to low 70s across the area.

SYNOPSIS. A weak ridge is sliding east this evening as a frontal system approaches the area. Additional upper level low pressure systems will move through the rest of the week. Light rain expected at times with no significant impacts expected across the area.

SHORT TERM /TONIGHT THROUGH SATURDAY/. Weak ridging has held off a thick cloud layer this afternoon and has brought the afternoon highs up a few degrees across the region. It will be short lived as the next trough moves onshore tomorrow and will bring light rain to the area. QPF amounts are still roughly around a tenth of an inch around the Sound and nearly a quarter of an inch possible at coastal locations.

Thursday's trough will shift east and heights will rise in response to the upper level ridge building over the Desert Southwest. This summertime synoptic phenomenon is a hallmark of the North American Monsoon season and advects moisture from Mexico, the Gulf of California and Gulf of Mexico into the Desert Southwest states for summertime thunderstorms to take place. The Pacific Northwest can benefit from this ridge, as it can help break up the unsettled pattern and allow for some warmer days to take shape across the region as it expands. This is likely going to help our temperatures on Friday come back up into the 70s, under mostly sunny skies. With the center of this ridge set up over the Southwest, temperatures will easily climb well above the 110 degree point in the near future, a stark contrast to our summer weather here in the Pacific Northwest.

By Saturday afternoon, the next trough will be just offshore. Depending on the thickness of the clouds moving in ahead of this Saturday's system, the high temperature forecast could fluctuate by a few degrees. If the timing stays on track for it to move onshore later in the day or in the evening hours, Saturday will still likely be a pleasant day in the 70s under partly sunny skies.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. The trough axis will move overhead on Sunday before exiting toward the east on Sunday. A round or two of light rain showers can be expected. Looking into early next week, the indication is for drier and sunnier weather. After Sunday, the pattern seems to show signs of improvement as a ridge develops offshore, raising the geopotential heights over the area. Highs will climb back up to normal or just slightly above in the first half of the week, given that this signal persists. It doesn't look to be a very dramatic pattern change, but one that could garner some excitement from those longing for summer to be a touch drier and more sunny.

Kristell

AVIATION. West-southwesterly flow aloft as an upper trough moves through the area into Thursday. VFR cigs this evening with increasing high clouds as a front approaches. MVFR cigs late tonight into Thursday afternoon as the front moves through. IFR possible in spots, mainly along the coast. Rain chances late tonight through the morning with the steadiest rain across northern areas and the coast. VFR cigs by late afternoon into the evening. Winds mainly light this evening southwesterly this evening with northerly winds across portions of the central Puget Sound. South winds 4 to 8 knots on Thursday.

KSEA . VFR cigs this evening. MVFR by late tonight (11-12z) into Thursday afternoon as a front moves through. Rain chances mainly in the morning (12z-17z). Light west winds this evening with south winds tomorrow. JD

MARINE. Onshore flow through the weekend with a few frontal systems at times increasing the flow. Small Craft Advisory winds through early tonight for the central and eastern portions of the Strait of Juan de Fuca. SCA winds possible into the weekend each evening for the Strait of Juan de Fuca with the increasing onshore flow. 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 . Small Craft Advisory until 1 AM PDT Thursday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 1 mi53 min WSW 8 G 12 58°F 52°F1017.3 hPa
46125 15 mi38 min 55°F 1015.8 hPa51°F
SISW1 - Smith Island, WA 16 mi171 min SW 9.9 G 12 53°F 1017.3 hPa50°F
46088 - New Dungeness, WA (Hein Bank) 27 mi181 min WSW 9.7 G 14 51°F1017.1 hPa
46120 30 mi36 min 59°F 1015.6 hPa52°F
PBFW1 - Padilla Bay Reserve, WA 30 mi71 min SSE 1 57°F 1017 hPa55°F
FRDW1 - 9449880 - Friday Harbor, WA 34 mi65 min WSW 1 G 1.9 56°F 51°F1016.6 hPa
WPOW1 - West Point, WA 35 mi41 min NE 6 G 6 57°F 1016.9 hPa (-0.4)55°F
PTAW1 - 9444090 - Port Angeles, WA 36 mi65 min 58°F 51°F1017.1 hPa
46267 45 mi71 min 49°F1 ft

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, WA19 mi1.7 hrsSW 410.00 miOvercast56°F50°F81%1018 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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Last 24hrSW7SW9W4CalmCalmSW3SW4S5SW7SW7SW5W7W8W8W5NW6W5W4W5W3SW4SW6SW4W3
1 day agoSW7SW7SW12SW7SW5S4SW63S4SE3S5SW7SW7SW6SW7SW6SW7W8SW8SW9SW7SW8SW9SW8
2 days agoSW4CalmCalmSW5SW6SW66SW8SW9SW10SW10W9W8W84W8W8W9W11SW9SW11SW8SW11SW10

Tide / Current Tables for Point Hudson, Washington
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Point Hudson
Click for Map
Thu -- 02:29 AM PDT     5.43 feet Low Tide
Thu -- 05:21 AM PDT     Sunrise
Thu -- 06:26 AM PDT     6.44 feet High Tide
Thu -- 10:05 AM PDT     Moonset
Thu -- 01:25 PM PDT     -0.48 feet Low Tide
Thu -- 09:10 PM PDT     Sunset
Thu -- 09:19 PM PDT     8.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.55.85.55.55.76.16.46.45.94.83.31.70.3-0.4-0.30.41.73.45.26.88.18.78.67.8

Tide / Current Tables for Portsend, 0.5 miles S of Point Hudson, Washington Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (3,6,7,8)
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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.