Saturday, December14, 2019
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Marine Weather and Tides
Markham, 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 7:51AMSunset 4:28PM Saturday December 14, 2019 11:11 AM PST (19:11 UTC) Moonrise 7:09PMMoonset 10:15AM Illumination 90% Phase: Waning Gibbous; Moon at 18 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- 827 Am Pst Sat Dec 14 2019
.small craft advisory in effect until 4 pm pst this afternoon... Combined seas 10 to 12 ft, subsiding to below 10 ft this evening. Maximum ebb currents will occur around 545 pm this evening and 630 am Sunday. Bar conditions rough with breakers likely, becoming moderate this evening. The ebb Saturday evening will be very strong.
PZZ100 827 Am Pst Sat Dec 14 2019
Synopsis for the northern and central washington coastal and inland waters..Weak flow through the weekend will lend to quieter conditions across area waters. Low level offshore flow is expected to develop early next week as surface ridging builds east of the cascades. A few organized frontal systems will likely impact the area beginning mid-week.


7 Day Forecast for Marine Location Near Markham, WA
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location: 46.89, -124     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 141636 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 833 AM PST Sat Dec 14 2019

SYNOPSIS. Scattered showers will decrease over the weekend. Weak high pressure will build over the area Monday and Tuesday. Weather systems will reach the area from the middle to end of next week.

SHORT TERM /TODAY THROUGH MONDAY/. A couple of weak upper troughs will bring some shower activity to Western Washington over the weekend. An upper ridge will shift over the area on Monday and a warm front will clip the north coast Monday afternoon and night.

LONG TERM /TUESDAY THROUGH FRIDAY/. A little light precip might brush the north part of Western Washington on Tuesday as a frontal system moves into British Columbia. Periods of rain are likely Thursday through Saturday as frontal systems affect the area.

AVIATION. Light westerly flow aloft will become northwesterly later today as an upper trough axis shifts onshore and an upper ridge begins to build over the offshore waters. The low level flow is weak. This combined with the moist air mass in place, a mix of MVFR and IFR ceilings in scattered showers will continue through the morning. Some modest improvement in ceilings is expected after 21Z, but areas of MVFR will persist across much of the region through the afternoon. Light surface winds and abundant low level moisture support the development of widespread low MVFR and IFR ceilings again tonight.

KSEA . IFR and/or low MVFR ceilings in light drizzle or showers to continue through midday. Marginal improvement possible after 21Z, but will be temporary at best. Ceilings to sink back to low MVFR or IFR again this evening. Surface winds light southerly this morning becoming light and variable in the afternoon. 27

MARINE. The only remaining headline continues to be the small craft advisory for the Coastal Waters and the western Strait of Juan de Fuca for hazardous seas. West swell of generally 11-13 ft can be expected through the morning hours before decreasing this evening. Winds will remain under advisory levels across the waters through the weekend.

Winds will begin to approach advisory levels on Monday over the coastal waters and the west entrance to the strait as surface high pressure settles east of the Cascades and low pressure deepens over the offshore waters. A more active storm track into the region by midweek will bring the likelihood of advisory or gale force winds at times to area waters. 27

HYDROLOGY. There are no flooding concerns at this time as shower activity will remain scattered and light. Generally quiet conditions will prevail through the weekend and into early next week before the next storm systems affect the region by mid next week.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 4 PM PST this afternoon 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-Grays Harbor Bar-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
WPTW1 - 9441102 - Westport, WA 6 mi96 min ESE 4.1 G 5.1 41°F 47°F1015.9 hPa
46211 - Grays Harbor, WA (036) 13 mi42 min 48°F11 ft
TOKW1 - 9440910 - Toke Point, WA 13 mi60 min E 4.1 G 5.1 43°F 48°F1016.4 hPa
46243 - Clatsop Spit, OR - 162 47 mi42 min 48°F9 ft
ASTO3 - 9439040 - Astoria, OR 49 mi60 min S 4.1 G 8 43°F 46°F1016 hPa

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi79 minE 510.00 miOvercast42°F42°F100%1016.6 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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Last 24hrE6E4N5CalmE6NE3CalmE3E3E3CalmE5CalmCalmE3E5E4E5NE4E3E3E5E5E7
1 day agoS15S15W12W11SW10SW12SW11SW8W12SW17
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SW3W43S5S8S3SE3CalmS10S9N8E6E8E6
2 days agoS10S14S10S11SE13E7E9E8S16S13SW19SW21
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Tide / Current Tables for Markham, Grays Harbor, Washington
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Markham
Click for Map
Sat -- 02:45 AM PST     9.03 feet High Tide
Sat -- 07:53 AM PST     Sunrise
Sat -- 07:56 AM PST     3.74 feet Low Tide
Sat -- 10:14 AM PST     Moonset
Sat -- 01:45 PM PST     10.68 feet High Tide
Sat -- 04:27 PM PST     Sunset
Sat -- 07:08 PM PST     Moonrise
Sat -- 08:39 PM PST     -0.88 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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67.78.898.36.95.54.33.74.56.38.29.610.510.7108.35.93.41.1-0.5-0.80.52.7

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Sat -- 02:57 AM PST     -0.00 knots Slack
Sat -- 05:40 AM PST     -2.13 knots Max Ebb
Sat -- 07:54 AM PST     Sunrise
Sat -- 08:21 AM PST     0.01 knots Slack
Sat -- 10:15 AM PST     Moonset
Sat -- 10:58 AM PST     2.08 knots Max Flood
Sat -- 02:01 PM PST     -0.00 knots Slack
Sat -- 04:27 PM PST     Sunset
Sat -- 05:43 PM PST     -4.02 knots Max Ebb
Sat -- 07:08 PM PST     Moonrise
Sat -- 09:16 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.52.11.3-0.1-1.3-2-2.1-1.6-0.50.81.82.11.810-1.4-2.9-3.8-4-3.5-2.2-0.51.12.2

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 (14,3,4,5)
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Ground Weather Radar Station Portland, OR
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Disclaimer:
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.