Monday, January20, 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 7:50AMSunset 4:52PM Monday January 20, 2020 3:11 AM PST (11:11 UTC) Moonrise 4:09AMMoonset 1:21PM Illumination 23% 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- 246 Am Pst Mon Jan 20 2020
Today..SE wind 10 to 20 kt. Wind waves 1 to 3 ft. A chance of rain.
Tonight..SE wind 5 to 15 kt becoming 10 to 20 kt after midnight. Wind waves 1 to 3 ft. A chance of rain in the evening then rain likely after midnight.
Tue..SE wind 15 to 25 kt becoming S in the afternoon. Wind waves 2 to 4 ft. Rain.
Tue night..S wind 15 to 25 kt easing to 10 kt after midnight. Wind waves 2 to 4 ft subsiding to 1 ft or less after midnight.
Wed..SE wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Wed night..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..SE wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 246 Am Pst Mon Jan 20 2020
Synopsis for the northern and central washington coastal and inland waters..A weakening cold front will move through the coastal waters today followed rapidly by a stronger frontal system tonight and Tuesday. The weather will stay active Wednesday and Thursday with additional weather systems affecting the area.


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 200956 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 156 AM PST Mon Jan 20 2020

SYNOPSIS. A weak front will dissipate over the western portion of the area today. Additional systems will move through the region Tuesday through the rest of the week with lowland rain and fluctuating snow levels in the mountains.

SHORT TERM /TODAY THROUGH WEDNESDAY/. Rain ahead of a weakening cold front offshore has moved into the coastal areas this morning. Low level gradients increased Sunday evening with breezy east winds through the Cascade Gaps. Gradient will continue to weaken this morning with winds gradually easing. Wind advisory will be canned with morning package here shortly. The aforementioned front will dissipate as it slowly moves onshore later today, with rain being hard pressed to make it east of Puget Sound. Have nudged forecast to account for latest hi-res trends with heaviest amounts falling along the coast and into the Olympics. Elsewhere, most of the day may remain dry, but cloudy. Afternoon highs will top out in the mid 40s to near 50 degrees.

A stronger system then progged to move across the area Tuesday into Wednesday. Rain out of ahead of it should reach the coast late Monday evening, spreading inland throughout the day Tuesday. Models (and latest Storm Prediction Center outlook) continues to show a bit of instability offshore and near the immediate coast Tuesday morning into Tuesday afternoon. Have continued the slight chance for thunder in these areas. As cooler air moves in, snow levels initially around 3000-4000 feet will drop down to around 2500 feet during the day Tuesday with around 6-8 inches expected at pass levels by late Tuesday night. Those with travel plans across the Cascades should keep an eye on the forecast. Southerly winds will also pick up as the front moves through with breezy conditions through Wednesday morning.

CEO

LONG TERM /THURSDAY THROUGH SUNDAY/. Rest of the week into the weekend characterized by a continued active pattern and warmer air. Next warm front reaches the area late Wednesday into early Thursday with cold front following later Thursday into Friday. This will bring additional rain to the lowlands. Snow levels initially below pass levels Wednesday evening will rise steadily to above 4000-5000 feet by Thursday. Models have trended a bit wetter with this system so rising river levels are possible. For now, no flooding in the forecast but will need to monitor rivers off the Olympics like the flood-prone Skokomish. Additional systems likely past Friday into the weekend but details remain uncertain at this point.

CEO

AVIATION. Southwesterly flow aloft continuing into tonight before becoming more southerly by Tuesday morning. Surface flow remains east to southeasterly except for around KBLI . where surface flow remains from the northeast.

VFR conditions in place for the majority of the area . the lone exception being the SW interior /such as KOLM/ where fog has set up creating IFR to LIFR conditions. E to SE surface flow should help keep cigs up for most of the morning before a front approaching the coast will bring an increase in mid-level clouds to the area. Conditions expected to remain VFR even as this front breaks up without making much progress inland. Could see cigs get down to around 3000 ft along the coast late in the AM . and precip may allow for momentary dips down into MVFR. Coastal cigs will rebound in the afternoon to around 5000 ft. Aforementioned fog over the SW interior likely to linger into the late morning before dissipating. Until then . these locations likely to see cigs below 200 feet and visibility 1sm or less.

KSEA . High clouds this early AM with cigs dropping to around 6000 by 16Z. Cigs will not stray too much from that for the remainder of the TAF period. East southeast winds 10-15 knots with possible gusts to 20 knots this early morning Direction will not change. but speeds will ease around 15z to 5-10 kts. 18

MARINE. A frontal system will dissipate as it moves inland Monday. Small craft advisory winds confined to the Coastal Waters into Monday. A stronger Pacific frontal system may bring gales to the Coastal Waters Monday night As such. have gone ahead and upgraded inherited watch to a gale warning starting late tonight and continuing into Tuesday. The Strait and adjacent Northern Inland waters also look to hit SCA criteria and as such . will issue those headlines as well with AM forecast package. The flow will turn briefly onshore Tuesday night, then turn back offshore on Wednesday as the next warm front arrives. Felton/18

HYDROLOGY. Precipitation will remain light today. Slightly wetter system for Tuesday into Wednesday with snow levels around 2500 feet. No flooding concerns for this time period currently. Additional systems will arrive for the later half of the week into the weekend with higher snow levels and likely heavier precipitation leading to rising river levels. Will continue to monitor trends and river forecasts going forward.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None.

PZ . Small Craft Advisory until 6 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.

Gale Warning from 10 PM this evening to 6 AM PST Tuesday 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 2 AM PST early this morning for Grays Harbor Bar.

Small Craft Advisory from 10 AM this morning to 10 AM PST Tuesday for Grays Harbor Bar.

Small Craft Advisory from 10 PM this evening to 10 AM PST Tuesday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands-West 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 2 mi60 min 49°F 46°F1013.4 hPa
SISW1 - Smith Island, WA 15 mi32 min ESE 13 G 17 52°F 1013.1 hPa37°F
PBFW1 - Padilla Bay Reserve, WA 27 mi102 min SSE 2.9 44°F 1013 hPa41°F
46088 - New Dungeness, WA (Hein Bank) 28 mi42 min SSW 5.8 G 9.7 47°F 46°F1013.1 hPa44°F
FRDW1 - 9449880 - Friday Harbor, WA 33 mi96 min ENE 8 G 9.9 52°F 47°F1012.3 hPa
WPOW1 - West Point, WA 35 mi72 min S 7 G 8 47°F 1014.1 hPa (-1.4)45°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi96 min WSW 5.1 G 9.9 42°F 46°F1012 hPa
46118 42 mi77 min 40°F 1012.2 hPa40°F

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 mi3.3 hrsSE 1510.00 miMostly Cloudy54°F37°F53%1014.2 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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2 days agoN3N6NE3E3SE6E7E7E9E8E7E8E7E6E7E9E9E10SE10
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Tide / Current Tables for Point Hudson, Washington
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Point Hudson
Click for Map
Mon -- 02:09 AM PST     7.91 feet High Tide
Mon -- 04:09 AM PST     Moonrise
Mon -- 05:47 AM PST     6.70 feet Low Tide
Mon -- 07:52 AM PST     Sunrise
Mon -- 11:25 AM PST     9.38 feet High Tide
Mon -- 01:21 PM PST     Moonset
Mon -- 04:51 PM PST     Sunset
Mon -- 06:58 PM PST     -0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.67.57.97.77.36.86.777.68.38.99.39.38.67.25.33.11.20-0.3012.33.9

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

Mon -- 02:41 AM PST     -0.29 knots Max Ebb
Mon -- 04:09 AM PST     Moonrise
Mon -- 04:52 AM PST     0.00 knots Slack
Mon -- 07:48 AM PST     0.67 knots Max Flood
Mon -- 07:52 AM PST     Sunrise
Mon -- 09:40 AM PST     -0.00 knots Slack
Mon -- 01:21 PM PST     Moonset
Mon -- 02:30 PM PST     -0.71 knots Max Ebb
Mon -- 04:51 PM PST     Sunset
Mon -- 05:32 PM PST     0.00 knots Slack
Mon -- 09:24 PM PST     1.93 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.2-0.3-0.3-0.200.40.60.70.4-0.1-0.2-0.4-0.6-0.7-0.7-0.5-0.20.41.11.61.91.81.4

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 (6,6,7,8)
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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.