Monday, September25, 2017 L-36.com


Marine Weather and Tides
Bryn Mawr-Skyway, 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 7:00AMSunset 7:00PM Monday September 25, 2017 5:05 PM PDT (00:05 UTC) Moonrise 11:35AMMoonset 9:14PM Illumination 28% Phase: Waxing Crescent; Moon at 5 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- 244 Pm Pdt Mon Sep 25 2017
Tonight..S wind 10 kt or less. Wind waves 1 ft or less. A slight chance of rain this evening.
Tue..Light wind, becoming N 10 kt or less. Wind waves 1 ft or less.
Tue night through Wed night..N wind 10 kt or less. Wind waves 1 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..S wind 10 kt or less. Wind waves 1 ft or less.
Fri..S wind 10 to 20 kt. Wind waves 3 ft or less.
Sat..SW wind 10 to 20 kt. Wind waves 3 ft or less.
PZZ100 244 Pm Pdt Mon Sep 25 2017
Synopsis for the northern and central washington coastal and inland waters..Weak southerly flow will become light and variable overnight. Expect the flow to become light northerly on Tuesday due to building pres over british columbia and lowering pres over oregon. A thermally induced trough of low pres along the washington coast will cause the flow to become easterly early Wednesday. Onshore flow will return on Friday.

7 Day Forecast for Marine Location Near Bryn Mawr-Skyway, WA
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location: 47.52, -122.26     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 252149
afdsew
area forecast discussion
national weather service seattle wa
300 pm pdt Mon sep 25 2017

Synopsis A weak front over the area will dissipate tonight. Dry
air will shift over the region as a ridge builds into the area on
Tuesday. The air will warm as low level offshore flow develops on
Wednesday. Thursday will also be a warm sunny day. A cold front will
reach the area Friday and unsettled weather is likely next weekend.

Short term A weak front is stalled near the coast and it will
probably be drippy into the evening hours there. The areas of light
rain or shower activity will dry up tonight as the front fizzles out
and high pres begins to build into the area. An upper ridge will
build into the region Tuesday and Wednesday--and low level offshore
flow will boost the temps midweek. Thursday should also be sunny and
warm before onshore flow develops late in the day. High temps should
top 80 degrees in the warmest spots around western washington wed
and thu.

Long term Onshore flow will develop Thursday night ahead of a
front that should reach the area on Friday for some rain. The precip
could hold off til afternoon or evening and the upper trough doesn't
reach western washington til Saturday morning. The weekend should be
cool, showery and unsettled behind the front. A stronger front and
deep low was in the models out around Sunday or Monday of next week,
but the 12z runs are different and what will happen out around a
week from now is rather uncertain.

Aviation An upper level ridge centered offshore will keep the
flow aloft northerly thru tonight. Weak low level southerly flow
will become flat overnight. In general, expect areas of ifr cigs
MVFR vsbys.

Ksea...VFR. There might be a brief period of MVFR CIGS this
afternoon but MVFR CIGS are more likely Tuesday morning. ExpectVFR
conditions Tuesday afternoon. Light southerly winds will become
light and variable overnight, and then northerly 5-10 knots Tuesday
afternoon.

Marine Weak southerly flow will become light and variable
overnight. Expect the flow to become light northerly on Tuesday due
to higher pressure building over british columbia and lowering
pressure over or. A thermally induced trough of low pressure along
the wa coast will cause the flow to become easterly early Wednesday.

Expect onshore flow to return on Friday.

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EBSW1 - 9447130 - Seattle, WA 7 mi47 min SW 1.9 G 2.9 62°F 56°F1019.4 hPa
WPOW1 - West Point, WA 14 mi65 min S 6 G 6 60°F 1019.6 hPa (-0.4)55°F
46120 18 mi38 min WNW 7.8 60°F 1018.4 hPa55°F
TCNW1 - 9446484 - Tacoma, WA 19 mi47 min 66°F 55°F1019.6 hPa
TCMW1 - 9446482 - Tacoma Met, WA 19 mi47 min N 2.9 G 2.9
46121 30 mi43 min 1.9 62°F 1018.7 hPa56°F
PTWW1 - 9444900 - Port Townsend, WA 49 mi47 min E 9.9 G 9.9 59°F 52°F1019.5 hPa

Wind History for Seattle, Puget Sound, WA, WA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA2 mi12 minS 510.00 miOvercast65°F54°F68%1019.1 hPa
Renton Municipal Airport, WA3 mi12 minS 310.00 miOvercast66°F55°F68%1019.6 hPa
Seattle, Seattle-Tacoma International Airport, WA6 mi12 minS 410.00 miOvercast64°F54°F70%1020.1 hPa
Tacoma, Tacoma Narrows Airport, WA24 mi12 minSSW 510.00 miMostly Cloudy62°F54°F75%1019.4 hPa

Wind History from BFI (wind in knots)
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Last 24hr4NW6CalmN3CalmCalmCalmS3SE5SE5SE6CalmSE3SE6SE3SE6S7S5S11S5W5SW5SW4S5
1 day agoN3NW8CalmNW5CalmCalmN4CalmCalmCalmCalmCalmSE3SE6SE3CalmCalm4Calm5NW7NW8NW5NW10
2 days ago3CalmCalmCalmSE3SE5SE6SE7SE6S4CalmSE3SE5SE4SE4SE4SE4SW5SW6S65SW36W5

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Mon -- 02:58 AM PDT     1.09 feet Low Tide
Mon -- 07:00 AM PDT     Sunrise
Mon -- 09:40 AM PDT     9.62 feet High Tide
Mon -- 12:34 PM PDT     Moonrise
Mon -- 03:21 PM PDT     4.98 feet Low Tide
Mon -- 07:00 PM PDT     Sunset
Mon -- 08:43 PM PDT     9.26 feet High Tide
Mon -- 10:14 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.931.61.11.73.14.96.98.59.49.69.18.16.85.755.15.97.18.29.19.28.77.5

Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
Click for Map
Mon -- 12:02 AM PDT     -0.84 knots Max Ebb
Mon -- 03:56 AM PDT     0.00 knots Slack
Mon -- 06:07 AM PDT     0.51 knots Max Flood
Mon -- 07:01 AM PDT     Sunrise
Mon -- 09:45 AM PDT     -0.00 knots Slack
Mon -- 12:34 PM PDT     Moonrise
Mon -- 12:51 PM PDT     -0.54 knots Max Ebb
Mon -- 04:32 PM PDT     0.00 knots Slack
Mon -- 05:57 PM PDT     0.22 knots Max Flood
Mon -- 07:00 PM PDT     Sunset
Mon -- 08:34 PM PDT     -0.00 knots Slack
Mon -- 10:15 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.8-0.6-0.300.40.50.50.30.2-0.1-0.3-0.5-0.5-0.5-0.3-0.10.10.20.20.1-0.1-0.4-0.6

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 (20,4,5,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.