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Marine Weather and Tides
Version 3.4 |
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 5:11AM | Sunset 9:11PM | Tuesday June 27, 2017 7:08 PM PDT (02:08 UTC) | Moonrise 8:36AM | Moonset 10:52PM | Illumination 16% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ135 Puget Sound And Hood Canal- 251 Pm Pdt Tue Jun 27 2017 Tonight..N wind 5 to 15 kt. Wind waves 2 ft or less. Wed and Wed night..Variable wind 5 to 15 kt. Wind waves 2 ft or less. Thu..N wind 10 kt or less. Wind waves 1 ft or less. Thu night..NW wind 5 to 15 kt. Wind waves 2 ft or less. Fri..Variable wind 10 kt or less. Wind waves 1 ft or less. Fri night..NW wind 5 to 15 kt, except sw over the south sound. Wind waves 2 ft or less. Sat and Sun..N wind 10 kt or less. Wind waves 1 ft or less. | PZZ100 251 Pm Pdt Tue Jun 27 2017 Synopsis for the northern and central washington coastal and inland waters..Higher pres offshore with lower pres E of the cascades will maintain onshore flow of varying strength through this weekend. The flow will become strong enough on Friday for the possibility of gale force winds over parts of the strait of juan de fuca. |
7 Day Forecast for Marine Location Near Issaquah, WA
Hourly EDIT Helplocation: 47.54, -122.02 debug
Area Discussion for - Seattle, WA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksew 272203 afdsew area forecast discussion national weather service seattle wa 300 pm pdt Tue jun 27 2017 Synopsis Onshore flow will persist into the weekend with a very typical pattern of late night and morning clouds. An upper level ridge building over the northeast pacific on Wednesday will shift onshore Thursday and Friday with rising heights helping to produce less morning cloud cover and warmer high temperatures. Another weak trough will brush the area late in the weekend. && Short term The marine stratus has retreated to the coastal waters this afternoon leaving clear skies over the area except for the odd mid and high level. The ongoing onshore flow will bring morning clouds again to the interior again late tonight into Wednesday morning with afternoon sunshine as the stratus burns back to the coast again. A subtle change in pattern will occur Wednesday as the upper level trough over the pacific northwest shifts into alberta and the northern rockies. This will SE the stage for heights to begin to rise as an upper level ridge builds behind it. Afternoon highs Wednesday will reach into the lower to mid 60s on the coast and 60s to mid 70s inland. Lows will mostly be in the 50s. The building ridge and weaker onshore flow Thursday will help thin the marine layer, resulting in less morning cloud cover and an earlier burn off. The earlier clearing and warmer temperatures aloft will combine to boost high temperatures on Thursday by around 5 degrees with the warmer locations pushing 80 degrees. Long term Medium range models remain in good agreement through Friday, pushing the ridge axis onshore Friday morning and over eastern washington during the afternoon. Low level onshore will continue, but with the ridge axis overhead and warming aloft have boosted the high temperatures a bit over Thursday into mid 70s to low 80s over the interior and near 70 for the coast models have come into more agreement on the large scale pattern for especially |
Saturday. There remains a chance for showers along the coast early Sunday morning, but have dried the forecast out for the remainder of the area on Sunday. Onshore flow expected to increase Saturday night into Sunday morning resulting in a deeper marine layer in the morning and a bit less sunshine in the afternoon. Highs will be near normal, in the 60s and lower 70s. The forecast remains dry Monday into independence day. Aviation Weak upper level trof over the region will cont moving slowly e, with upper level ridge following in its wake. Contd nw flow aloft. The low level flow will remain onshore. Meanwhile, areas of MVFR CIGS (025-030) persisted over the SW part of the puget sound region and along the SE slopes of the olympic range early this afternoon. These clouds will dissipate or lift into theVFR category range by 0000 utc, wed. Expect stratus (MVFR cigs) to return to the coast late this afternoon or early this evening and over the interior lowlands later tonight. Ksea... Stratus (cigs near 1k ft) is anticipated to arrive between 1000 utc (3 am pdt) and 1200 utc (5 am pdt). Expect the low clouds to scatter out by noon wed. Winds will be SW 5-10 knots, becoming light NW late this afternoon or early evening. Winds will become light southerly overnight. Marine Higher pres offshore with lower pres E of the cascades will maintain onshore flow of varying strength through this weekend. The flow will become strong enough on Friday for the possibility of gale force winds over parts of the strait of juan de fuca. Sew watches warnings advisories Wa... None. Pz... Small craft advisories are in effect for the outer coastal waters from 10 nm out to 60 nm and the central eastern strait of juan de fuca. |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| EBSW1 - 9447130 - Seattle, WA | 17 mi | 68 min | NW 4.1 G 5.1 | 65°F | 54°F | 1015 hPa (-1.7) | ||
| WPOW1 - West Point, WA | 24 mi | 68 min | S 5.1 G 5.1 | 62°F | 1015 hPa (-1.9) | 50°F | ||
| TCNW1 - 9446484 - Tacoma, WA | 28 mi | 68 min | 70°F | 53°F | 1015 hPa (-1.7) | |||
| TCMW1 - 9446482 - Tacoma Met, WA | 28 mi | 68 min | N 4.1 G 5.1 | |||||
| 46121 | 42 mi | 55 min | 5.8 | 62°F | 1014 hPa | 53°F |
Wind History for Seattle, Puget Sound, WA, WA
(wind in knots) EDIT (on/off) Help| 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | W | SW | SW G7 | S G10 | SW G9 | S | SE G7 | S G10 | SE G5 | S G8 | S G8 | SW G8 | S | SW | S G8 | SW G11 | S G9 | S G10 | SW G8 | NW G4 | W | NW | NW | NW |
| 1 day ago | N G11 | NW | N | W | NW | NW G7 | W G4 | SW | S G10 | S G9 | S G8 | S G10 | SW G9 | SW | SW | SW G6 | SW G6 | S G15 | W | SW G10 | SW G6 | SW G8 | S G9 | SW |
| 2 days ago | NW | NW | NW G8 | N | N G10 | SE | S | S | W | S | SW | W | NW | -- | NW | S | NW | N | W G7 | SW | NW G5 | NW | NW | N G12 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Renton Municipal Airport, WA | 11 mi | 75 min | Var 3 | 10.00 mi | Fair | 71°F | 52°F | 51% | 1015.2 hPa |
| Boeing Field - King County International Airport, WA | 15 mi | 75 min | N 0 | 10.00 mi | Partly Cloudy | 70°F | 55°F | 59% | 1014.8 hPa |
| Seattle, Seattle-Tacoma International Airport, WA | 17 mi | 75 min | WSW 5 | 10.00 mi | Partly Cloudy | 69°F | 51°F | 53% | 1015.8 hPa |
Wind History from RNT (wind in knots)
| 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | S | S | S | S | S | S | S | S | SE | SE | E | SE | S | S | SW | S | S | NW | ||||||
| 1 day ago | NW | NW | NW | N | Calm | S | SE | SE | S | S | SE | Calm | S | S | S | S G16 | SW | S | S | S | S | |||
| 2 days ago | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | S | SE | Calm | N | N | NW | NW | NW | NW | NW | NW | NW | NW | NW |
Tide / Current Tables for Duwamish Waterway, Washington
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Duwamish Waterway Click for Map Tue -- 02:23 AM PDT 5.54 feet Low Tide Tue -- 05:14 AM PDT Sunrise Tue -- 07:08 AM PDT 9.80 feet High Tide Tue -- 09:38 AM PDT Moonrise Tue -- 02:14 PM PDT -1.80 feet Low Tide Tue -- 09:10 PM PDT Sunset Tue -- 09:25 PM PDT 12.25 feet High Tide Tue -- 11:53 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 8 | 6.4 | 5.6 | 5.7 | 6.6 | 8 | 9.2 | 9.8 | 9.5 | 8.2 | 6.3 | 3.8 | 1.3 | -0.8 | -1.8 | -1.4 | 0.4 | 3 | 6.1 | 9 | 11.1 | 12.2 | 12.1 | 11.1 |
Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
EDIT (on/off) Help One Week of Data| Restoration Point Click for Map Tue -- 03:34 AM PDT 0.00 knots Slack Tue -- 04:50 AM PDT 0.28 knots Max Flood Tue -- 05:14 AM PDT Sunrise Tue -- 07:18 AM PDT -0.00 knots Slack Tue -- 09:38 AM PDT Moonrise Tue -- 11:20 AM PDT -1.06 knots Max Ebb Tue -- 02:59 PM PDT 0.01 knots Slack Tue -- 05:36 PM PDT 0.94 knots Max Flood Tue -- 09:11 PM PDT Sunset Tue -- 09:36 PM PDT -0.01 knots Slack Tue -- 11:54 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| -0.8 | -0.7 | -0.5 | -0.2 | 0.2 | 0.3 | 0.2 | 0.1 | -0.2 | -0.6 | -0.9 | -1.1 | -1 | -0.8 | -0.4 | 0 | 0.5 | 0.9 | 0.9 | 0.8 | 0.5 | 0.2 | -0.2 | -0.5 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of PacificNorthwest EDIT  |
Wind Forecast for Seattle, WA (22,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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. |