Monday, March8, 2021
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Marine Weather and Tides
Coupeville, WA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:35AMSunset 6:07PM Monday March 8, 2021 7:20 AM PST (15:20 UTC) Moonrise 4:36AMMoonset 12:46PM Illumination 25% 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- 313 Am Pst Mon Mar 8 2021
Today..Light wind. Wind waves less than 1 ft.
Tonight..SE wind to 10 kt becoming S 5 to 15 kt after midnight. Wind waves 2 ft or less.
Tue..SE wind 5 to 15 kt becoming to 10 kt in the afternoon. Wind waves 2 ft or less.
Tue night..Light wind becoming nw to 10 kt after midnight. Wind waves less than 1 ft becoming 1 ft or less after midnight.
Wed..NW wind to 10 kt. Wind waves 1 ft or less.
Wed night..NW wind to 10 kt. Wind waves 1 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Fri..SE wind to 10 kt becoming light. Wind waves 1 ft or less.
PZZ100 313 Am Pst Mon Mar 8 2021
Synopsis for the northern and central washington coastal and inland waters..Marginal small craft advisory level winds along the coastal waters will persist into this afternoon before easing. Southerly flow across the coastal waters may pick back up late tonight into Tuesday before becoming more southeasterly into Tuesday morning. Another round of small craft advisories possible. Currently, seas are still elevated at 14-16 feet, but are on track to relax to between 9-11 feet at 13 to 14 seconds by this evening. Seas look to fall below 10 feet again on Tuesday and remain below 10 feet through midweek.


7 Day Forecast for Marine Location Near Coupeville, WA
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location: 48.22, -122.69     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 081139 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 339 AM PST Mon Mar 8 2021

SYNOPSIS. A low pressure system offshore will continue to slowly move south over the next few days, maintaining some chances for showers across western Washington. High pressure then builds over the region toward mid-week for dry conditions Wednesday through at least Friday. Precipitation chances return over the weekend as the next disturbance approaches the area.

SHORT TERM /TODAY THROUGH WEDNESDAY/. Latest satellite imagery reveals an upper low still located well offshore, about 500 miles west of Neah Bay. A few areas of showers and thunderstorms do remain present on radar this morning oriented along a southwest to northeast line over the outer coastal waters and extending back into the western entrance of the Strait of Juan de Fuca. These will continue to weaken and push further offshore, beyond the boundary of the coastal waters (60 nm) later this morning.

Meanwhile, clearing across much of the area, paired with relatively light winds, has resulted in efficient radiational cooling and allowed temperatures to plunge into the lower 30s or upper 20s. Fog has also developed from around Bremerton to the south and west through portions of Kitsap, Mason, Thurston, Grays Harbor, and Lewis counties. Expect this to remain through around daybreak, with local patches of fog possible elsewhere. With temperatures below freezing, there will be the potential for slick spots with any residual moisture, especially in outlying areas or on elevated surfaces. Anyone traveling this morning should use caution and be prepared for reduced visibility and possible slick spots.

This low will continue to gradually shift south today, maintaining generally southwesterly or southerly flow aloft across the region. Latest guidance continues to suggest a band or two of moisture associated with a shortwave impulse rotating around the upper low will cross the area this afternoon and evening, bringing another round of showers. Outside of this band, mostly dry conditions with a mix of sun and clouds. Tuesday looks to be similar - dry for most, but another impulse may bring some showers in the afternoon and evening. By Wednesday, the upper low continues to advance south and east into northern California, with a more northerly flow aloft developing over the region. A few showers may linger over the Cascades as the broader upper trough axis shifts east and higher pressure begins to move east toward the region. Temperatures will trend close to normal with daytime highs in the low to mid 50s. Outside of the aforementioned focus for showers, expect areas of fog to again form each of the next few nights in areas that see clearing in the mid and high level clouds. Cullen

LONG TERM /THURSDAY THROUGH SUNDAY/. The upper level ridge is then expected to more solidly move into the Pacific Northwest Thursday and into Friday, with dry conditions expected these two days. Ensemble guidance continues to suggest that the ridge may begin to break down enough to allow some precipitation chances to return to the Olympic Peninsula by late Friday, though the majority of ensemble members suggest mostly dry conditions into early Saturday. Regardless, the consensus favors at least some light rain returning over the weekend with temperatures again holding near normal values. Confidence is much lower for the end of the weekend and into early next week, as the guidance is more equally split between holding some remnants of a ridge over the area or allowing a deeper trough to take up residence over the western U.S. Cullen

AVIATION. A large degree of clearing has occurred over most terminals overnight and into early this morning. Currently, the only shower activity remains offshore and just along the northwest corner of the Olympic Peninsula. With the amount of ongoing clearing into the early morning hours, temperatures have fallen and fog has started to develop in south Puget Sound (KPWT and KOLM in particular). The fog will likely persist until after daybreak until more clearing can occur. VFR conditions are expected through most of today. Dry conditions are expected through this afternoon before some shower activity moves north out of Oregon late in the day. Winds will be generally variable between the NE and S/SW at 7kts or less.

KSEA . VFR conditions at the terminal expected through the rest of the early morning hours. Winds will be generally light and variable (below 10 knots) through the day until some light shower activity possibly arrives between 21-23Z and may linger through the rest of the period.

Kristell

MARINE. Marginal Small Craft Advisory level winds along the coastal waters will persist into this afternoon before easing. Southerly flow across the coastal waters may pick back up late tonight into Tuesday before becoming more southeasterly into Tuesday morning. Another round of Small Craft Advisories possible. Reductions in visibility across southern Puget Sound are possible through daybreak today as there may be fog lingering in these areas. Fog should largely dissipate through the mid to late morning hours.

Currently, seas are still elevated at 14-16 feet, but are on track to relax to between 9-11 feet at 13 to 14 seconds by this evening. Seas look to fall below 10 feet again on Tuesday and remain below 10 feet through midweek.

Kristell

HYDROLOGY. River flooding is not expected through the next seven days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 4 PM PST this afternoon for coastal waters from Cape Flattery to Cape Shoalwater out 60 nm, Grays Harbor Bar, and West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 1 AM to 1 PM Tuesday for Coastal Waters from Cape Flattery to Cape Shoalwater out 60 nm.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 8 mi51 min NNE 6 G 7 40°F 46°F1017.9 hPa
SISW1 - Smith Island, WA 10 mi31 min E 12 G 14 39°F 1017.3 hPa33°F
PBFW1 - Padilla Bay Reserve, WA 21 mi51 min E 7 37°F 1017 hPa31°F
46088 - New Dungeness, WA (Hein Bank) 27 mi31 min ENE 14 G 18 42°F 46°F2 ft1017.2 hPa37°F
FRDW1 - 9449880 - Friday Harbor, WA 28 mi45 min NNE 2.9 G 4.1 40°F 46°F1017.4 hPa
PTAW1 - 9444090 - Port Angeles, WA 40 mi45 min 33°F 46°F1017.1 hPa
WPOW1 - West Point, WA 41 mi21 min E 2.9 G 4.1 36°F 1017 hPa (-1.5)31°F
CPMW1 44 mi51 min ENE 12 G 17 38°F
CHYW1 - 9449424 - Cherry Point, WA 45 mi51 min 1017.9 hPa
CPNW1 45 mi51 min ENE 14 G 18 38°F
46267 49 mi51 min 46°F2 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, WA10 mi25 minE 810.00 miMostly Cloudy37°F31°F79%1018.3 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA22 mi46 minNNE 810.00 miFair36°F32°F87%1017.6 hPa

Link to 5 minute data for KNUW

Wind History from NUW (wind in knots)
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CalmSE9SE10SE13E10SE10SE13E9E10SE7E9E5SE3SE6NE3E3E8
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Tide / Current Tables for Coupeville, Washington
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Coupeville
Click for Map
Mon -- 02:27 AM PST     10.96 feet High Tide
Mon -- 04:36 AM PST     Moonrise
Mon -- 06:37 AM PST     Sunrise
Mon -- 07:26 AM PST     7.67 feet Low Tide
Mon -- 12:01 PM PST     9.91 feet High Tide
Mon -- 12:46 PM PST     Moonset
Mon -- 06:06 PM PST     Sunset
Mon -- 07:32 PM PST     -0.43 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.910.210.910.910.29.18.27.77.78.28.99.69.99.68.674.92.70.8-0.3-0.30.62.44.7

Tide / Current Tables for Point Wilson, 2.3 miles NE of, Washington Current
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Point Wilson
Click for MapFlood direction 143 true
Ebb direction 323 true

Mon -- 02:36 AM PST     -0.00 knots Slack
Mon -- 04:36 AM PST     Moonrise
Mon -- 04:57 AM PST     -1.55 knots Max Ebb
Mon -- 06:37 AM PST     Sunrise
Mon -- 07:21 AM PST     0.00 knots Slack
Mon -- 10:07 AM PST     0.32 knots Max Flood
Mon -- 12:07 PM PST     -0.00 knots Slack
Mon -- 12:46 PM PST     Moonset
Mon -- 04:23 PM PST     -3.03 knots Max Ebb
Mon -- 06:06 PM PST     Sunset
Mon -- 06:53 PM PST     0.00 knots Slack
Mon -- 11:29 PM PST     2.34 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.20.4-0.4-1.3-1.6-1.1-0.30.10.30.30.30-0.6-1.6-2.5-3-2.8-1.60.10.91.62.12.3

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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