Wednesday, July15, 2020
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Marine Weather and Tides
Port Townsend, 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 5:24AMSunset 9:08PM Wednesday July 15, 2020 6:50 PM PDT (01:50 UTC) Moonrise 12:42AMMoonset 3:34PM Illumination 19% 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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PZZ134 Admiralty Inlet- 303 Pm Pdt Wed Jul 15 2020
.small craft advisory in effect from 7 pm pdt this evening through late tonight...
Tonight..NW wind 15 to 25 kt. Wind waves 2 to 4 ft. Patchy fog after midnight.
Thu..S wind to 10 kt becoming nw in the afternoon. Wind waves 2 ft or less. Patchy fog in the morning. A slight chance of showers in the afternoon.
Thu night..NW wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft. A slight chance of showers in the evening then a chance of showers after midnight.
Fri..NW wind 10 to 20 kt easing to 10 kt in the afternoon. Wind waves 1 to 3 ft subsiding to 1 ft or less in the afternoon.
Fri night..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..Light wind becoming nw to 10 kt in the afternoon. Wind waves 1 ft or less.
Sat night..NW wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Sun..NW wind to 10 kt. Wind waves 1 ft or less.
Mon..Light wind becoming nw to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 303 Pm Pdt Wed Jul 15 2020
Synopsis for the northern and central washington coastal and inland waters..Offshore high pressure through the week with low pressure to the south along the oregon coast will drive northwesterly winds over the coastal waters. Strengthening onshore flow this afternoon and evening will result in gale conditions through the central and east strait. A weak disturbance may clip the far northern waters late in the week.


7 Day Forecast for Marine Location Near Port Townsend city, WA
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location: 48.12, -122.72     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 152150 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 248 AM PDT Wed Jul 15 2020

SYNOPSIS. Shallow marine layer clouds along the coast will deepen on Thursday as a weak front reaches the area. A strong marine push will occur Thursday afternoon and evening. Friday will be cool and cloudy with some areas of showers or drizzle. An upper ridge will build over the weekend and into early next week for a period of sunny warm weather before another marine push by the middle of next week.

SHORT TERM /TONIGHT THROUGH SATURDAY/. Shallow marine layer stratus along the coast will squirt through the Strait again tonight. Thursday will see a areas of morning fog or low clouds and some mid and high clouds will break up over the area as a very weak front reaches Western Washington. The deeper marine push will occur Thursday afternoon and night, setting the stage for a few PSCZ showers and then some drizzle or shower activity through Friday morning. On Saturday the cool marine air mass will rapidly warm and dry with the the beginning of a four day warming trend.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. An upper ridge will build offshore and then nose in toward Western Washington as a weather system moves toward the Alaskan Panhandle on Monday--depressing the ridge offshore. Over Western Washington the air will warm and dry through Monday--with peak temps on the coast Monday and in the interior on Tuesday. A marine push will occur Tuesday night or Wednesday as a weak upper trough reaches the area. The forecast for next Wednesday looks too warm and sunny, but I will leave it for now.

AVIATION. VFR conditions will persist into tonight at all TAF sites. Marine stratus will yield lower CIGs late tonight into Thursday morning, with widespread MVFR conditions expected and local IFR conditions possible. Northerly prevailing wind at all sites with the exception of BLI and HQM where southerly and westerly winds are expected respectively. Winds generally AOB 10 kts.

KSEA . VFR conditions under mostly clear skies through late this evening. Marine stratus will push over the terminal late tonight/early Thursday morning, bringing ceilings down the 1500-2500 feet. CIGs will improve to VFR once again by mid morning. Prevailing wind out of the north through the period at speeds of 4 to 8 kts with the strongest winds being observed this afternoon.

Pullin

MARINE. Offshore high pressure will remain in place for the next couple of days, with thermal low pressure building up the Oregon coast. North/northwest winds over the coastal waters with strongest winds this evening over the coastal waters through the Strait of Juan de Fuca. The forecast remains on track for a period of Gale Force winds overnight in the central and Eastern Strait, with advisory level conditions in the adjacent northern inland waters. Forecast gradients suggest that winds may remain elevated at advisory levels through the day Thursday across the Central and Eastern Strait. Onshore flow will continue through the weekend and into early next week with additional periods of advisory level westerlies in the Central and Eastern Strait.

Seas over the coastal waters will build from 3 to 6 ft to 6 to 9 feet by this weekend in conjunction with elevated winds. Seas will likely remain elevated into next week.

Outside of winds and seas, fog is expected to develop and spread across much of outer coastal waters and potentially into the Strait of Juan de Fuca overnight. Areas of dense fog is not out of the question at this time. This trend will likely continue through the weekend and into early next week as the overall pattern remains constant.

Pullin

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 5 AM PDT 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.

Small Craft Advisory until 5 PM PDT this afternoon for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Gale Warning until 5 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 7 PM this evening to 5 AM PDT Thursday for Admiralty Inlet-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
PTWW1 - 9444900 - Port Townsend, WA 2 mi80 min 53°F
SISW1 - Smith Island, WA 15 mi40 min W 11 G 14 55°F 1019.7 hPa52°F
46125 16 mi34 min 58°F 1018.3 hPa55°F
PBFW1 - Padilla Bay Reserve, WA 27 mi80 min W 6 73°F 1019 hPa60°F
46088 - New Dungeness, WA (Hein Bank) 28 mi40 min WSW 18 G 19 54°F 53°F1019.5 hPa54°F
46120 30 mi35 min 67°F 1017.5 hPa55°F
FRDW1 - 9449880 - Friday Harbor, WA 33 mi194 min 54°F
WPOW1 - West Point, WA 35 mi110 min NNE 12 G 13 66°F 1019.2 hPa (-1.2)58°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi194 min 54°F
46118 42 mi55 min 67°F 1018 hPa67°F
46267 47 mi50 min 53°F2 ft

Wind History for Port Townsend, WA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA17 mi54 minW 410.00 miPartly Cloudy61°F53°F75%1020.8 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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Last 24hrSW4SW5W5SW4SW4SW8SW5S5SW7SW9SW8SW8SW9SW11SW7W7W7W9W6W7W56W6W4
1 day agoW4W4SW5SW5SW5W4SW3SW5SE4SE4SE4E3CalmCalmW7W7W6W6W6W8W7W6W7W7
2 days agoSW9SW6SW7SW6W7W6W6W3SW3SW4S4SE4Calm3W6W5W7W8W7W7W6W8W5W6

Tide / Current Tables for Point Hudson, Washington
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Point Hudson
Click for Map
Wed -- 01:42 AM PDT     Moonrise
Wed -- 05:27 AM PDT     Sunrise
Wed -- 07:19 AM PDT     0.59 feet Low Tide
Wed -- 03:39 PM PDT     6.51 feet High Tide
Wed -- 04:33 PM PDT     Moonset
Wed -- 06:47 PM PDT     5.85 feet Low Tide
Wed -- 09:06 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.17.66.75.33.72.21.10.60.71.32.23.34.35.366.46.56.265.96.16.67.27.7

Tide / Current Tables for Point Hudson, 0.5 mile E of, Washington Current
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Point Hudson
Click for MapFlood direction 115 true
Ebb direction 10 true

Wed -- 01:42 AM PDT     Moonrise
Wed -- 02:39 AM PDT     -0.56 knots Max Ebb
Wed -- 05:27 AM PDT     Sunrise
Wed -- 05:57 AM PDT     0.00 knots Slack
Wed -- 09:28 AM PDT     1.10 knots Max Flood
Wed -- 12:29 PM PDT     -0.00 knots Slack
Wed -- 03:37 PM PDT     -0.22 knots Max Ebb
Wed -- 04:33 PM PDT     Moonset
Wed -- 05:53 PM PDT     0.00 knots Slack
Wed -- 08:39 PM PDT     0.46 knots Max Flood
Wed -- 09:05 PM PDT     Sunset
Wed -- 10:23 PM PDT     -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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-0.3-0.5-0.5-0.5-0.4-0.200.50.91.11.10.80.3-0.1-0.2-0.2-0.2-0.100.30.40.40.2-0.1

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 (21,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.