Sunday, February28, 2021
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Marine Weather and Tides
Silver Firs, 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 6:48AMSunset 5:53PM Sunday February 28, 2021 8:29 PM PST (04:29 UTC) Moonrise 7:49PMMoonset 7:57AM Illumination 94% 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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PZZ134 Admiralty Inlet- 218 Pm Pst Sun Feb 28 2021
Tonight..SE wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Mon..S wind to 10 kt. Wind waves 1 ft or less. A slight chance of rain in the afternoon.
Mon night..NW wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less.
Tue..Variable wind to 10 kt becoming S in the afternoon. Wind waves 1 ft or less.
Tue night..S wind to 10 kt. Wind waves 1 ft or less.
Wed..SE wind to 10 kt. Wind waves 1 ft or less.
Wed night..SE wind to 10 kt. Wind waves 1 ft or less.
Thu..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..SE wind 5 to 15 kt becoming S to 10 kt. Wind waves 2 ft or less.
PZZ100 218 Pm Pst Sun Feb 28 2021
Synopsis for the northern and central washington coastal and inland waters..A weak cold front offshore will move onshore during the day Monday and dissipate as it does so. A warm front will brush the waters on Wednesday with the trailing cold front reaching the area on Friday.


7 Day Forecast for Marine Location Near Silver Firs, WA
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location: 47.88, -122.16     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 010410 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 810 PM PST Sun Feb 28 2021

UPDATE. No changes to the forecast this evening, as a tranquil night is on tap. Water vapor imagery this evening shows an elongated, narrow trough of low pressure digging south from around the Gulf of Alaska into the nearby Pacific down to 40N. At the surface, a weak trough is noted east of the Cascades across Washington, with a frontal system offshore located just downstream of the mid/upper level trough.

Recent radar imagery has picked up on some light shower activity this evening, mainly near the Coast/just offshore and also across the San Juans and W Whatcom County. This is likely due to some weak WAA across the area in the 850-700mb layer (confirmed via SPC mesoanalysis). This will not amount to much and will likely dissipate as the night progresses. That being said, the aforementioned frontal boundary offshore will approach the area towards Monday morning. This may push some light rain towards the Coast, however, the elongated mid/upper level trough will slowly be splitting on Monday, which is likely to interrupt the moisture feed along the front. This will result in low rain chances throughout the day on Monday. As the split flow pattern develops near the West Coast, an area of closed low pressure will begin to meander offshore of California, with the PNW left with the weak troughing within the northern stream. Some weak vorticity may help squeeze out a few light showers later in the day Monday, but this is really nothing to write home about. Temperatures, however, will warm into the mid 50s!

Previous discussion included below with updated aviation section (no updates to marine needed tonight).

Kovacik

PREV DISCUSSION. /issued 205 PM PST Sun Feb 28 2021/

SYNOPSIS. A series of weak upper level disturbances will bring periods of light lowland rain and mountain snow through mid-week with seasonal temperatures. A pattern change late in the second half of the week will lead to warming temperatures and a return of wet weather to Western Washington by the end of the week.

SHORT TERM /TONIGHT THROUGH WEDNESDAY/ . Light showers/drizzle continues across portions of the Olympic Peninsula this afternoon. An upper level ridge axis continues to slide over the region at this hour as an upper level shortwave digs southward out of the Gulf of Alaska. While this has led to drier conditions with a few breaks in the clouds in the Puget Sound region, light showers continue along the outer coast. Light showers will linger along the coast into the day Monday as upper level flow splits tomorrow, sending the upper low south toward the California coast and ejecting a weak disturbance across Western Washington. Hi- res and ensemble guidance have trended drier with this disturbance for Monday and Tuesday - with any showers likely to be scattered in nature. The upper level pattern will amplify on Wednesday as an upper level trough digs out of the Gulf of Alaska and ridging builds over the Great Basin. The highest POPs will remain over the Olympic Peninsula through the period.

LONG TERM /THURSDAY THROUGH SUNDAY/. Warming trend will be in place at the beginning of the period with temperatures potentially approaching 60 degrees F in some spots on Thursday. The upper level ridge axis will break down and shift eastward as the aforementioned upper level shortwave trough ejects across the region Friday. This will bring a return to wet weather for the region for the weekend, with ensembles favoring a mean trough over the northwest into early next week. Temperatures will return to normal for early March with the upper level pattern shift by the weekend.

Pullin

AVIATION. Ceilings are still expected to recover back to VFR overnight at the TAF sites, with the exception of OLM and HQM. Ceilings are likely to become BKN-SCT around 4-6kft through Monday morning, with a BKN-OVC higher level layer between 10-20kft. For HQM, marine stratus MVFR are expected and for OLM, could see some fog develop overnight and impact vsby. All sites should be VFR by Monday afternoon. Winds S (likely more W at CLM) through the period under 10kts.

KSEA . VFR ceiling through the period with winds out of the S under 10kts.

Kovacik

MARINE. A weak cold front offshore will move onshore during the day Monday and dissipate as it does so. A warm front will brush the waters on Wednesday with the trailing cold front reaching the area on Friday. Onshore flow behind Monday's front could bump westerlies in the Strait of Juan de Fuca to around advisory levels. Otherwise, winds across inland waters will remain under small craft advisory levels for the most part until a potential stronger front arrives around the end of the week. Small craft advisory conditions will be likely over the coastal waters in the week ahead as seas build back above 10 feet and weak fronts periodically boost winds. A front on Friday could bring gales to coastal waters, but confidence is not high at this time.

27

HYDROLOGY. Light rainfall amounts over the next week will preclude the threat for river flooding.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 5 PM PST Monday 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.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 21 mi90 min S 11 G 13 48°F 1022.4 hPa (-1.2)45°F
PTWW1 - 9444900 - Port Townsend, WA 36 mi60 min ESE 12 G 15 48°F 46°F1021.4 hPa
PBFW1 - Padilla Bay Reserve, WA 44 mi60 min SSE 9.9 49°F 1021 hPa42°F
TCMW1 - 9446482 - Tacoma Met, WA 44 mi60 min W 5.1 G 6
TCNW1 - 9446484 - Tacoma, WA 44 mi60 min 50°F 48°F1022.9 hPa
SISW1 - Smith Island, WA 47 mi40 min SSW 8.9 G 13 47°F 1020.8 hPa41°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Everett Snohomish County, WA7 mi37 minVar 510.00 miOvercast48°F40°F74%1022.1 hPa
Arlington Municipal Airport, WA20 mi34 minSE 810.00 miOvercast48°F40°F74%1022.5 hPa

Link to 5 minute data for KPAE

Wind History from PAE (wind in knots)
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NW7NW4NW6NW6NW5N6N6N43SW5CalmSW7S13S8S8S53SE5
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5SW7W5S12S4NW8NW8NW8
G20
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Tide / Current Tables for Everett, Washington
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Everett
Click for Map
Sun -- 05:56 AM PST     12.19 feet High Tide
Sun -- 06:50 AM PST     Sunrise
Sun -- 07:57 AM PST     Moonset
Sun -- 11:51 AM PST     3.88 feet Low Tide
Sun -- 05:22 PM PST     10.51 feet High Tide
Sun -- 05:52 PM PST     Sunset
Sun -- 07:49 PM PST     Moonrise
Sun -- 11:47 PM PST     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-01.84.57.41011.712.211.610.185.84.33.94.66.17.99.510.410.39.17.14.72.30.7

Tide / Current Tables for President Point, 1.5 mile E of, Washington Current
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President Point
Click for MapFlood direction 203 true
Ebb direction 24 true

Sun -- 12:06 AM PST     0.01 knots Slack
Sun -- 02:29 AM PST     0.55 knots Max Flood
Sun -- 06:10 AM PST     -0.00 knots Slack
Sun -- 06:51 AM PST     Sunrise
Sun -- 07:57 AM PST     Moonset
Sun -- 08:45 AM PST     -0.59 knots Max Ebb
Sun -- 12:55 PM PST     0.00 knots Slack
Sun -- 02:41 PM PST     0.32 knots Max Flood
Sun -- 05:41 PM PST     -0.00 knots Slack
Sun -- 05:53 PM PST     Sunset
Sun -- 07:50 PM PST     Moonrise
Sun -- 08:39 PM PST     -0.65 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.30.50.50.40.30-0.3-0.5-0.6-0.5-0.4-0.200.30.30.30.1-0.1-0.4-0.6-0.6-0.6-0.4

Weather Map
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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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