Friday, April10, 2020
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Marine Weather and Tides
Dash Point, 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 6:27AMSunset 7:53PM Friday April 10, 2020 6:35 AM PDT (13:35 UTC) Moonrise 10:37PMMoonset 7:17AM Illumination 93% 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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PZZ135 Puget Sound And Hood Canal- 208 Am Pdt Fri Apr 10 2020
Today..N wind to 10 kt. Wind waves 1 ft or less.
Tonight..NW wind 15 to 25 kt becoming S 10 to 20 kt after midnight. Wind waves 2 to 4 ft.
Sat..SW wind to 10 kt becoming N 10 to 20 kt in the afternoon. Wind waves 1 ft or less building to 1 to 3 ft in the afternoon.
Sat night..N wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Sun..N wind to 10 kt. Wind waves 1 ft or less.
Sun night..N wind to 10 kt becoming ne after midnight. Wind waves 1 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
Tue..Light wind. Wind waves less than 1 ft.
PZZ100 208 Am Pdt Fri Apr 10 2020
Synopsis for the northern and central washington coastal and inland waters..Gradients remain favorable for another strong onshore push of advisory level winds down the strait of juan de fuca this afternoon into tonight. Another push of advisory level winds offshore will build seas up to 10 to 12 feet this afternoon, with seas remaining elevated through Saturday. Flow will weaken and become offshore late Saturday into Sunday with seas decreasing as a result. Northwesterly flow is expected to resume for early next week.


7 Day Forecast for Marine Location Near Dash Point, WA
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location: 47.34, -122.39     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 101016 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 316 AM PDT Fri Apr 10 2020

SYNOPSIS. A quiet weather pattern is expected over the next 7 days across western Washington. Higher level cloud cover will increase today in advance of a weak shortwave that will move through overnight tonight and Saturday. A few higher terrain rain and snow showers will be possible as the system passes through. Thereafter, dry N/NW aloft will remain in place as a high- amplitude pattern develops across the N Pacific and US. This will make for dry conditions with a gradual warming trend through next week.

SHORT TERM /TODAY THROUGH SUNDAY/. A water vapor loop this morning still does not resemble much change in the synoptic pattern from the previous 24-48 hours. An omega blocking pattern across the Northeastern Pacific Ocean is becoming less defined on its upstream side north of the Hawaiian Islands, but the ridge portion still extends from the Northeastern Pacific into the Pacific Northwest, with downstream closed low still centered over Southern California. There is still evidence of a split-flow pattern across the eastern 2/3rds of the country, downstream from the blocking feature, within which an active storm track resides, especially within the northern stream. In the lower levels/near the surface, a weakening cold frontal boundary was detected across southern BC, not terribly far from northern Washington, with expansive anticyclones noted across the Northeastern Pacific and across the central US. A departing nor'easter-type cyclone was also seen exiting the northern New England coastline towards Nova Scotia.

Across the Pacific Northwest this morning, with the pattern described above, the flow has become light onshore this morning, and a elongated patch of stratus (and perhaps some patchy fog) has developed along the immediate coastline. Elsewhere, some passing cirrus clouds were noted per IR satellite imagery. Temperatures were generally in the low-mid 40s as of 0930z. Fast- forwarding a bit through the day today, expect another dry day with temps reaching back into the 60s, though will be a few degrees cooler than yesterday given some enhanced cloud cover. The remaining ridge influence will slowly become flattened through the day today as a shortwave trough deepens across central Canada and a weaker impulse begins to push south out of the Gulf of Alaska. The flow aloft will also gradually increase and the overall flow should be more favorable to advect some higher level cloud cover into the area. The aforementioned weak cold front across southern BC will make little additional progress southward as parent cyclone across central Canada remains largely displaced from it.

Overnight tonight into Saturday morning will perhaps provide for the most active or "exciting" weather over the next 7 days (and this will even be a stretch) as the weak Gulf of Alaska impulse slides south down BC and quickly through western Washington. Model guidance is still suggestive of strongest height falls and best lift within upper level jet to our east. Nevertheless, this impulse will likely push the stagnant frontal boundary south into the local area where it combined with some weak orographic enhancement will likely spark some showers across the northern and central Cascades and the adjacent foothills through Saturday morning/maybe into the afternoon. With snow levels in the 3000-4000ft range, northern Cascades snow is likely, with perhaps some snow reaching Stevens Pass, however, this is not expected to cause travel impacts. Hi-res model guidance is also somewhat suggestive of some shower activity developing late this evening around southern portion of Puget Sound near King and Pierce Counties as westerly winds push down the Strait and south through Puget Sound. This may need to be added to the forecast if it continues to be suggested, altho if it occurs it would not amount to much.

Once this quick-moving system is out of our hair late Saturday afternoon and evening, we return to tranquil weather, with also what looks to be some noticeably drier air filtering into the area from the north. This dry northerly flow will carry us through the weekend. It is worth noting that Saturday's weak impulse will help induce a pattern change across the CONUS as it merges with the southern California closed low as it begins its journey eastward. With the merging of the northern and southern streams together, a deep longwave trough is expected develop across the majority of the CONUS by Sunday. As this occurs, a ridge of high pressure across the NE Pacific Ocean will amplify and build into Alaska. The PacNW will essentially be caught between these two longer-wave features, of which our pleasant and quiet conditions will be the result of through the remainder of the short term.

Kovacik

LONG TERM /MONDAY THROUGH THURSDAY/. The long term forecast period will begin with the highly amplified pattern across the eastern North Pacific and the US described at the end of the short term discussion. Ensemble guidance is pretty set in suggesting a slight progression of the pattern through mid week, which would act to keep the ridge influence across the Pacific Northwest. While it is still possible a few impulses may try to traverse or work through the ridge near mid-week, it does not appear right now that any will make it into or near the region, so will opt for a completely dry forecast in the extended with temps moderating back into the mid-upper 60s, maybe even low 70s for some at the end of this forecast period.

Kovacik

AVIATION. VFR conditions expected at nearly all TAF sites through the period. Low stratus continues to linger around HQM at this hour, with low end MVFR to high end IFR CIGs possible through the remainder of the night. With westerly winds between 15 and 20 knots and higher gusts, CIGS will remain MVFR through much of the period, ranging from 1500 to 2500 feet.

Elsewhere, mid to upper level clouds will increase through the day. With the exception of the Puget Sound terminals and CLM where winds will prevail from the north, winds will generally be southwesterly or westerly at speeds generally around 10 knots.

KSEA . VFR conditions through the period with increasing mid to upper level clouds after daybreak. Prevailing winds will generally be out of the north and light during the daytime hours at speeds around 5 knots. Winds will increase later this afternoon out of the north, with speeds generally in the 8 to 10 knot range before becoming light and variable late tonight.

Pullin

MARINE.

Gradients remain favorable for another strong onshore push of advisory level winds down the Strait of Juan de Fuca this afternoon into tonight. Another push of advisory level winds offshore will build seas up to 10 to 12 feet this afternoon, with seas remaining elevated through Saturday as winds gradually weaken during the day. Flow will become offshore late Saturday into Sunday with seas decreasing as a result. Northwesterly flow is expected to resume for early next week.

Pullin

HYDROLOGY. No river flooding the next 7 days. Best chance for any measurable QPF will be overnight Friday and through the first half of Saturday as a weak shortwave dives south through the area. Best chance for showers will be across the Northern & Central Cascades in the form of snow showers, and the adjacent foothills in the form of rain showers. Total amounts will not be hydrologically impactful/significant.

Kovacik

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 5 PM PDT Saturday 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 PDT Saturday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 8 PM this evening to 2 AM PDT Saturday for Admiralty Inlet.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 5 mi47 min ESE 2.9 G 2.9
TCNW1 - 9446484 - Tacoma, WA 5 mi47 min 45°F 49°F1019.6 hPa
46121 18 mi29 min 1.9 46°F 1019 hPa42°F
WPOW1 - West Point, WA 22 mi35 min NE 2.9 G 4.1 46°F 1019.2 hPa (+0.0)45°F
46120 29 mi32 min 46°F 1018 hPa43°F
46125 41 mi32 min 44°F 1018.2 hPa42°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA8 mi42 minSSE 310.00 miPartly Cloudy45°F37°F74%1019.4 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi42 minN 010.00 miFair42°F39°F89%1019.1 hPa
Tacoma / McChord Air Force Base, WA13 mi37 minN 010.00 miFair35°F31°F88%1019.4 hPa
Boeing Field - King County International Airport, WA14 mi42 minN 010.00 miFair45°F37°F77%1019.1 hPa
Renton Municipal Airport, WA14 mi42 minN 010.00 miFair43°F36°F76%1019.6 hPa
Pierce County-Thun Field, WA17 mi40 minN 010.00 miLight Drizzle39°F39°F100%1019 hPa
Fort Lewis / Gray U. S. Army Airfield, WA20 mi97 minSE 410.00 miFair36°F36°F99%1019 hPa
Bremerton, Bremerton National Airport, WA22 mi39 minN 010.00 miFair37°F35°F93%1019.4 hPa

Link to 5 minute data for KSEA

Wind History from SEA (wind in knots)
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Last 24hrNE4NE4NE3N5N7N12N9N74W8N10N11N9N9N8N13NE8NE7N3N5NE3S3CalmSE3
1 day agoN6N10N12N7N9N11N9N10
G14
NW9N9N10N11N9N8N8N9N9N6NE5NE8NE5N5E4Calm
2 days agoSE6SE5SE7SE7S7S5S7S7SW6SW43W5W6W3N6N6NE8NE6N6N6N4CalmN6N4

Tide / Current Tables for Des Moines, Washington
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Des Moines
Click for Map
Fri -- 01:09 AM PDT     3.71 feet Low Tide
Fri -- 06:29 AM PDT     Sunrise
Fri -- 06:49 AM PDT     12.21 feet High Tide
Fri -- 08:16 AM PDT     Moonset
Fri -- 01:38 PM PDT     -1.40 feet Low Tide
Fri -- 07:52 PM PDT     Sunset
Fri -- 08:25 PM PDT     11.90 feet High Tide
Fri -- 11:37 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.63.74.25.8810.211.812.211.39.46.63.50.7-1.1-1.302.55.58.510.711.811.710.78.9

Tide / Current Tables for The Narrows, North end E side, Washington Current
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The Narrows
Click for Map
Fri -- 02:20 AM PDT     0.00 knots Slack
Fri -- 04:57 AM PDT     3.74 knots Max Flood
Fri -- 06:30 AM PDT     Sunrise
Fri -- 07:46 AM PDT     -0.00 knots Slack
Fri -- 08:17 AM PDT     Moonset
Fri -- 11:29 AM PDT     -6.50 knots Max Ebb
Fri -- 02:31 PM PDT     0.01 knots Slack
Fri -- 05:35 PM PDT     5.31 knots Max Flood
Fri -- 07:53 PM PDT     Sunset
Fri -- 09:09 PM PDT     -0.00 knots Slack
Fri -- 11:38 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-5-3.7-1.11.43.13.73.11.5-0.6-3.1-5.2-6.4-6.3-4.8-1.91.23.65.15.24.22.40.3-2-3.7

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 (9,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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