Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Markham, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:05AMSunset 7:08PM Sunday September 24, 2017 7:23 PM PDT (02:23 UTC) Moonrise 10:40AMMoonset 8:48PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 235 pm pdt Sun sep 24 2017 combined seas 2 to 4 ft. Bar conditions light. The maximum ebb currents will occur around 8 pm tonight and 815 am Monday. PZZ100 235 Pm Pdt Sun Sep 24 2017
Synopsis for the northern and central washington coastal and inland waters..A warm front offshore moving towards canada tonight will cause the flow to back to southerly. This front will move across british columbia while weakening on Mon for light southerly flow over the area. The flow will become light northerly on Tue due to higher pres over western canada and lower pres over oregon.

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 242148
afdsew
area forecast discussion
national weather service seattle wa
248 pm pdt Sun sep 24 2017

Synopsis A frontal system will bring clouds and a little rain
later tonight and Monday. An upper ridge and low level offshore
flow will bring sunshine and warmer weather in the middle of the
week. A weak front and an upper trough will bring cooler weather
and possibly some showers late in the week.

Short term A frontal system will bring a rain threat to the
area later tonight through Monday evening. The best chance for
rain will be at the coast where rain will be likely Monday.

Chances will be lower inland as the front falls apart. Highs will
be a few degrees cooler Monday with additional cloudiness. An
upper ridge will build over the area Monday night and Tuesday. Any
lingering showers should end Monday evening and clouds should
decrease over the area Tuesday. Highs will return to near normal
Tuesday. The upper ridge will strengthen over the area Wednesday.

At the same time, low level offshore flow will develop as a
thermal trough builds north along the west coast. This will bring
sunny and warmer weather Wednesday. High should warm into the 70s
most areas. Schneider

Long term An upper ridge over the area will begin to shift
inland Thursday. A thermal trough just offshore will weaken but
remain in place for another sunny and unseasonably warm day.

Highs will be in the 70s most areas and some locations could reach
the lower 80s. An upper trough and a weakening front will reach
the area Friday for a chance of rain with highs cooling several
degrees. The ECMWF is a bit stronger and wetter with this system
compared to the gfs. The forecast is a blend for now. Fairly
uneventful zonal flow aloft will prevail next weekend. A warm
front might clip the north part of the area Sunday but not much is
expected from this right now. Schneider

Aviation An upper level ridge centered offshore will keep the
flow aloft northerly over the region. The low level flow will
remain weak onshore. Anticipate areas of lifr CIGS and ifr vsbys
to dvlp later tonight.

Ksea... MVFR CIGS should develop Monday morning and then persist
into the afternoon. Light northerly winds will become light
southerly tonight.

Marine A warm front offshore heading towards canada tonight
will cause the flow to back to southerly. This front will move
across british columbia while weakening on Monday for light
southerly flow over the area. The flow will become light northerly
on Tuesday due to higher pressure over western canada and lower
pressure over or. The flow will become more offshore or easterly
on Wednesday.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 1 am pdt Monday for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 6 mi53 min NNW 12 G 13 56°F 58°F1020.1 hPa
46211 - Grays Harbor, WA (036) 13 mi53 min 58°F4 ft
TOKW1 - 9440910 - Toke Point, WA 13 mi53 min WNW 7 G 7 61°F 61°F1019.9 hPa
46243 - Clatsop Spit, OR - 162 47 mi53 min 57°F3 ft
ASTO3 - 9439040 - Astoria, OR 49 mi53 min N 2.9 G 4.1 64°F 66°F1019.5 hPa

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi30 minW 78.00 miPartly Cloudy60°F55°F86%1020.3 hPa

Wind History from HQM (wind in knots)
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Last 24hrW3CalmCalmCalmCalmCalmNE4NE5NE3NE6NE6NE5NE3E3NE6NE3S3S3W12SW8SW12W5SW5W7
1 day agoSW7S6S7S5S6SW6S5CalmCalmCalmSW5S4S4S4SW3SW5SW6SW6SW9SW9W8W8W5W4
2 days agoCalmCalmCalmNW3CalmCalmCalmE4NE5NE4NE4CalmNE3NE5CalmSE5S4SW7SW10SW9SW11SW10SW8SW8

Tide / Current Tables for Markham, Grays Harbor, Washington
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Markham
Click for Map
Sun -- 04:22 AM PDT     7.96 feet High Tide
Sun -- 07:05 AM PDT     Sunrise
Sun -- 10:04 AM PDT     1.75 feet Low Tide
Sun -- 11:40 AM PDT     Moonrise
Sun -- 04:12 PM PDT     8.69 feet High Tide
Sun -- 07:08 PM PDT     Sunset
Sun -- 09:48 PM PDT     Moonset
Sun -- 10:42 PM PDT     0.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.44.15.87.17.97.86.75.23.72.41.82.33.95.77.18.18.78.47.25.53.620.70.4

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Sun -- 01:27 AM PDT     1.96 knots Max Flood
Sun -- 04:39 AM PDT     -0.00 knots Slack
Sun -- 07:06 AM PDT     Sunrise
Sun -- 07:44 AM PDT     -2.41 knots Max Ebb
Sun -- 10:36 AM PDT     0.00 knots Slack
Sun -- 11:40 AM PDT     Moonrise
Sun -- 01:17 PM PDT     1.90 knots Max Flood
Sun -- 04:35 PM PDT     -0.00 knots Slack
Sun -- 07:09 PM PDT     Sunset
Sun -- 08:02 PM PDT     -3.02 knots Max Ebb
Sun -- 09:48 PM PDT     Moonset
Sun -- 11:21 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.91.91.60.8-0.5-1.7-2.3-2.4-1.9-0.80.51.41.91.81.40.7-0.5-1.9-2.8-3-2.8-1.8-0.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (22,6,7,8)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.