Wednesday, December11, 2019
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Marine Weather and Tides
Ocean Shores, WA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:49AMSunset 4:28PM Wednesday December 11, 2019 4:00 AM PST (12:00 UTC) Moonrise 4:24PMMoonset 7:11AM Illumination 100% Phase: Full Moon; Moon at 14 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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PZZ110 Grays harbor bar- 247 am pst Wed dec 11 2019 combined seas 7 to 9 ft. Bar conditions moderate. Maximum ebb currents will occur around 345 am and and 345 pm today. The afternoon ebb will be strong.
PZZ100 247 Am Pst Wed Dec 11 2019
Synopsis for the northern and central washington coastal and inland waters..A vigorous frontal system will move through the area later today and tonight. A trough will cross the area on Thursday. Onshore flow Thursday night will ease Friday. A weather disturbance will push onshore south of the area over the weekend.


7 Day Forecast for Marine Location Near Ocean Shores, WA
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location: 46.95, -124.13     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 111101 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 301 AM PST Wed Dec 11 2019

SYNOPSIS. A strong weather system will move through the area later this morning through early Friday. This system will bring heavy snow to the Cascades, especially above 3500 to 4000 feet. Rain elsewhere with locally windy conditions tonight. Showers Friday into early Saturday. Active weather into early next week.

SHORT TERM /TODAY THROUGH FRIDAY/. Satellite imagery shows low clouds across much of Western Washington this morning with high clouds offshore ahead of the next system. Patchy fog will be around through the morning. A strong, December-like, frontal system will move onshore late this morning and slide east through today with active weather through Friday. This system will bring widespread rainfall for the Lowlands, as well as breezy conditions and mountain snow. Headlines through Friday for the system:

Lowland Rainfall: Scattered showers this morning with widespread rainfall this afternoon into tonight. The evening commute will be impacted. Post-frontal showers late tonight into Thursday morning. A secondary front will move through Thursday afternoon into Thursday night with more rain for the Lowlands. Post-frontal showers into Friday.

Snow levels: Snow levels will be generally between 3500 and 4500 feet through Thursday with the higher snow levels (around 4500 feet) across the Southern Cascades. Snow levels will lower to 2500 to 3500 feet feet Thursday night into Friday morning. This means that heavier snow accumulations are expected at Stevens Pass rather than Snoqualmie.

Snow Amounts: Accumulations generally 3-6 inches below 3500 feet (best chance of accumulation early Friday morning), 1-2 feet between 3500-4500 feet, and 2-4 feet above 4500 feet. Winter Storm Warning for the Cascades this afternoon through Friday morning. A Winter Weather Advisory in effect for the Olympics late this morning through Thursday evening.

Gusty Winds: Breezy southerly winds are expected with this system with a decent BLI-YZT gradient tonight. Gusts will generally be 20-30 MPH. Stronger winds with gusts 35-40 MPH will be possible along the coast and across the North Interior (Western Whatcom/Skagit and San Juans).

There will also be a slight chance of thunderstorms for the coast with the post-frontal showers Thursday afternoon into early Thursday night with cool air aloft. Temperatures through this week will be in the upper 40s to low 50s across Western Washington. JD

LONG TERM /SATURDAY THROUGH TUESDAY/. Post-frontal showers may be around through early Saturday morning as the system slides east. Another weather system may slide south of the area on Saturday, however, ensembles suggest at least the chance for POPs, especially for southern areas Saturday afternoon into Saturday night. Another system will move through Sunday into Monday. Ensembles do suggest the active pattern next week as well with mean troughing off the Pac NW. Temperatures will be near normal in the mid 40s for the weekend with upper 40s into next week. JD

AVIATION. Weak upper level ridge moving east of the area this morning. Southwesterly flow aloft. Light flow in the lower levels becoming easterly this afternoon. Rain out ahead of the front spreading over the area this afternoon with the front moving through Western Washington overnight. Low level flow becoming southerly behind the front.

Ceilings in the 1500-2500 foot range with local ceilings below 1000 feet and visibility 1-3sm in fog until around 18z. Little change in the ceilings with the onset of the rain this afternoon into tonight. Local visibility 3-5sm in moderate rain 00z-06z.

KSEA . Ceilings around 1500 feet could lift into the 2000-2500 foot range later this morning. Visibility 1-3sm on fog at times until 15z. Rain beginning this afternoon with visibility 3-5sm in moderate rain at times 00z-06z. Southeasterly winds 4 to 8 knots becoming southerly 8 to 12 knots after 03z. Felton

MARINE. A vigorous frontal system will move through the area today and tonight. Gale force southeast winds are likely for the Coastal Waters, East Entrance Strait of Juan de Fuca, and Northern Inland Waters with this system. The strongest winds should be this evening. Small craft advisory strength winds are likely all other waters as well later today and tonight.

Off and on advisory strength south to southwest winds will continue into Thursday as a second trough crosses the area. Onshore flow will gradually ease Thursday night and Friday. A weather disturbance will move inland to the south next weekend with easterly offshore flow for the area.

Lastly, west swell over the Coastal Waters will build to 15-18 feet tonight and Thursday, then gradually subside Friday through Sunday.

HYDROLOGY. A wet storm system will impact the region this afternoon through Friday. Given precipitation amounts and snow levels in the 4000-5000 foot range - most rivers are not expected to approach flood stage. There is some concern that the Skokomish River in Mason County could approach flood stage. We will continue to monitor this situation.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Storm Warning from 1 PM this afternoon to 10 AM PST Friday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties.

Winter Weather Advisory from 10 AM this morning to 9 PM PST Thursday for Olympics.

PZ . Gale Warning from noon today to 7 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 1 PM this afternoon to 1 AM PST Thursday for East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 4 PM PST Thursday for West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 4 PM this afternoon to midnight PST tonight for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 10 AM this morning to 4 AM PST Thursday for Admiralty Inlet.

Small Craft Advisory from 5 PM this afternoon to 5 PM PST Thursday for Puget Sound and Hood Canal.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 3 mi84 min SSE 5.1 G 7 46°F 47°F1017 hPa
46211 - Grays Harbor, WA (036) 9 mi60 min 48°F10 ft
TOKW1 - 9440910 - Toke Point, WA 19 mi60 min E 4.1 G 4.1 46°F 47°F1017.5 hPa (-0.4)
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA 43 mi70 min SE 14 G 16 48°F 50°F12 ft1016.4 hPa (-0.0)
46100 45 mi130 min SSE 16 48°F 51°F1014.9 hPa

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA9 mi67 minE 710.00 miOvercast46°F46°F100%1017.8 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrE8E8E9E7E7E10E8E8E7E7E5E6NE5E6E4E7E5CalmCalmE5E6E5E7E9
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2 days agoCalmCalmCalmCalmE3SE4CalmE3E3CalmCalmSW3NW3CalmNE3SE3CalmNE5CalmNE3E6E4E6E6

Tide / Current Tables for Point Brown, Grays Harbor, Washington
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Point Brown
Click for Map
Wed -- 12:19 AM PST     8.49 feet High Tide
Wed -- 05:35 AM PST     3.48 feet Low Tide
Wed -- 07:10 AM PST     Moonset
Wed -- 07:51 AM PST     Sunrise
Wed -- 11:44 AM PST     10.51 feet High Tide
Wed -- 04:24 PM PST     Moonrise
Wed -- 04:27 PM PST     Sunset
Wed -- 06:24 PM PST     -0.41 feet Low Tide
Wed -- 09:14 PM PST     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.48.37.364.73.73.64.76.489.410.310.59.77.95.73.31.1-0.3-0.11.23.156.8

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Wed -- 12:46 AM PST     -0.00 knots Slack
Wed -- 03:41 AM PST     -2.07 knots Max Ebb
Wed -- 06:13 AM PST     0.00 knots Slack
Wed -- 07:10 AM PST     Moonset
Wed -- 07:51 AM PST     Sunrise
Wed -- 09:01 AM PST     1.98 knots Max Flood
Wed -- 12:07 PM PST     -0.00 knots Slack
Wed -- 03:50 PM PST     -3.86 knots Max Ebb
Wed -- 04:24 PM PST     Moonrise
Wed -- 04:27 PM PST     Sunset
Wed -- 07:15 PM PST     0.00 knots Slack
Wed -- 09:14 PM PST     Full Moon
Wed -- 10:23 PM PST     2.35 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1-0.3-1.4-1.9-2-1.4-0.30.91.721.81.20.2-1.4-2.8-3.6-3.9-3.4-2-0.411.92.32.3

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 (7,2,3,4)
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Ground Weather Radar Station Portland, OR
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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 numerious 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.