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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 5:22AM | Sunset 8:51PM | Friday May 24, 2019 1:56 AM PDT (08:56 UTC) | Moonrise 12:18AM | Moonset 9:33AM | Illumination 72% |  |
PZZ135 Puget Sound And Hood Canal- 737 Pm Pdt Thu May 23 2019
Tonight..NE wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A slight chance of showers in the evening. A chance of showers after midnight.
Fri..S wind 5 to 15 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A slight chance of showers.
Fri night..SW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of showers.
Sat..SW wind 5 to 15 kt becoming N in the afternoon. Wind waves 2 ft or less.
Sat night..N wind to 10 kt. Wind waves 1 ft or less.
Sun..Light wind becoming ne to 10 kt in the afternoon. Wind waves less than 1 ft.
Sun night..N wind to 10 kt. Wind waves 1 ft or less.
Mon..SW wind to 10 kt becoming s. Wind waves 2 ft or less.
Tue..S wind 5 to 15 kt easing to 10 kt. Wind waves 2 ft or less.
Tonight..NE wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A slight chance of showers in the evening. A chance of showers after midnight.
Fri..S wind 5 to 15 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. A slight chance of showers.
Fri night..SW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A slight chance of showers.
Sat..SW wind 5 to 15 kt becoming N in the afternoon. Wind waves 2 ft or less.
Sat night..N wind to 10 kt. Wind waves 1 ft or less.
Sun..Light wind becoming ne to 10 kt in the afternoon. Wind waves less than 1 ft.
Sun night..N wind to 10 kt. Wind waves 1 ft or less.
Mon..SW wind to 10 kt becoming s. Wind waves 2 ft or less.
Tue..S wind 5 to 15 kt easing to 10 kt. Wind waves 2 ft or less.
PZZ100 737 Pm Pdt Thu May 23 2019
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will increase tonight. Strong nw flow will develop over the coastal waters on Friday. The low level flow will ease on Saturday and become light Sunday. Onshore flow will increase again on Monday.
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will increase tonight. Strong nw flow will develop over the coastal waters on Friday. The low level flow will ease on Saturday and become light Sunday. Onshore flow will increase again on Monday.
7 Day Forecast for Marine Location Near Artondale, WA
Hourly EDIT Helplocation: 47.28, -122.65 debug
Area Discussion for - Seattle, WA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksew 240305 afdsew area forecast discussion national weather service seattle wa 805 pm pdt Thu may 23 2019 Synopsis A low will drop south from british columbia on Friday, bringing a chance for light showers across the area, with isolated thunder possible near cascade crest. Another low drops south for Saturday for an even better chance for showers. Another ridge builds in for Monday, memorial day, with dry and warm temps expected for the lowlands and isolated showers storms for the mountains. Ridge holds through late week, with an overall dry forecast tues-thurs. Short term tonight through Sunday Some shower activity continues this evening with northwest flow aloft carrying some it off the olympics across hood canal and the southern fringes of puget sound. Little in the way of showers remain over the cascades with the atmosphere stabilizing as the Sun GOES down. Shortwave sinking southward over the interior of british columbia will carve out a decent trough over washington by Friday afternoon. The vast majority of the precipitation will likely be focused over higher terrain, but it will certainly bring plenty of clouds and the associated increase in onshore flow will help drop temperatures across the interior of western washington 10 to 20 degrees below today's readings. 27 from previous discussion... For tomorrow, a shortwave will drop down from bc right over washington. The chance for scattered showers across both the mountains and the lowlands will increase early Friday morning from the north. Although it will not be a washout by any means, scattered showers will continue thru much of the day and spread southward as the low tracks in that direction. Right now guidance indicates most of the instability will remain confined to the cascade crest and points east, have placed mention of thunder at least in the northern cascades for now given that mid level temps will be cooler as the low moves directly overtop the area. Following very closely on the heels of Friday's low will be another, stronger closed low for Saturday. Some timing differences exist between the deterministic ec and gfs, and right now prefer the slower progression of the ec based on ensemble guidance. This could make for a later start (i.E.,afternoon vs morning) to the next round of precip on Saturday if this were to verify, but nonetheless, unfortunately the forecast for Saturday has turned wetter. Have also kept mention of thunder in the cascades. This low will pull south Sunday night and reinforce that persistent, longer wave western us trough. Kovacik Long term Monday through Thursday The long term period begins on memorial day with the previous day's low well to our south centered in northern arizona. This allows a ridge to build into the pacnw, which points towards a return to dry and pleasant weather, at least for the lowlands with highs back into the mid and upper 70s. The higher terrain could again see diurnally driven convection by Monday afternoon but it seems more isolated at this time. The ridge appears to hold on thru the remainder of the long term. This may allow for a dry forecast by Tuesday evening (after another round of afternoon mountain convection) |
through Thursday. Kovacik Aviation Showers diminishing over the mountains as the Sun goes down. Increasing low level onshore flow level will push stratus along the coast across much of the interior of western washington by daybreak Friday. MVFR CIGS are likely. An upper level shortwave trough will bring scattered showers to the area on Friday. 33 27 ksea...VFR conditions tonight, then stratus clouds moving in 11-14z for MVFR cigs. A few showers possible by 18z as upper trough settles over the region. Surface wind light southwesterly backing to southerly overnight and increasing to 10-15 kt Friday morning. 33 27 Marine Onshore flow continuing to increase this evening. Uil bli gradient was near +3.0 millibars as of 02z and continuing to edge upward. Have upgraded the SCA in the central and eastern strait to a gale warning through late tonight. Small craft advisories in effect for the coastal waters, the northern inland waters, and admiralty inlet. Strong northwest flow will develop over the outer coastal waters on Friday with gales possible. Winds will ease on Saturday and become light on Sunday. Onshore flow will increase again on Monday. 33 27 Hydrology The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then. Sew watches warnings advisories Wa... None. Pz... Gale watch from 6 am pdt Friday through Friday evening for coastal waters from CAPE flattery to james island 10 to 60 nm-coastal waters from james island to point grenville 10 to 60 nm-coastal waters from point grenville to cape shoalwater 10 to 60 nm. Small craft advisory until 6 am pdt Friday for coastal waters from CAPE flattery to james island 10 to 60 nm-coastal waters from james island to point grenville 10 to 60 nm- coastal waters from point grenville to CAPE shoalwater 10 to 60 nm. Small craft advisory until 11 pm pdt Friday for coastal waters from CAPE flattery to james island out 10 nm-coastal waters from james island to point grenville out 10 nm-coastal waters from point grenville to CAPE shoalwater out 10 nm. Gale warning until 3 am pdt Friday for central u.S. Waters strait of juan de fuca-east entrance u.S. Waters strait of juan de fuca. Small craft advisory until 11 pm pdt this evening for northern inland waters including the san juan islands. Small craft advisory until 3 am pdt Friday for admiralty inlet. |
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 |
| 46121 | 4 mi | 38 min | 55°F | 1012.4 hPa | 50°F | |||
| TCMW1 - 9446482 - Tacoma Met, WA | 12 mi | 44 min | S 5.1 G 8 | |||||
| TCNW1 - 9446484 - Tacoma, WA | 13 mi | 44 min | 56°F | 51°F | 1013 hPa | |||
| WPOW1 - West Point, WA | 29 mi | 56 min | S 15 G 17 | 54°F | 1012.1 hPa (+0.4) | 51°F | ||
| 46120 | 36 mi | 40 min | S 7.8 | 55°F | 1010.8 hPa | 51°F | ||
| 46125 | 43 mi | 39 min | 1.9 | 53°F | 1010.8 hPa | 51°F |
Wind History for Tacoma MET, WA
(wind in knots) EDIT (on/off) Help| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | |
| Last 24hr | N | W | NW | SW | W | W | SW G4 | N | NW | NW | N | N | N | N | N | N | NW | W | W G7 | SW G13 | SW | W G11 | SW G11 | SW G12 |
| 1 day ago | SE | E | E | SE | E | E | E | NW | N | NW | W | W | W | W | NW | NW | NW | NW | W | W | NW | W | W | N |
| 2 days ago | SE | NE | N | N | W | N | N G11 | NW G9 | N G16 | N G15 | N G16 | NE G8 | NE | N | W | NW | NW | NW | N | NW | -- |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Tacoma, Tacoma Narrows Airport, WA | 4 mi | 63 min | SSW 8 | 10.00 mi | Overcast | 53°F | 48°F | 83% | 1012.8 hPa |
| Tacoma / McChord Air Force Base, WA | 12 mi | 2 hrs | SSW 9 | 10.00 mi | Partly Cloudy | 55°F | 54°F | 99% | 1013.2 hPa |
| Fort Lewis / Gray U. S. Army Airfield, WA | 14 mi | 2 hrs | S 7 | 10.00 mi | A Few Clouds | 54°F | 53°F | 99% | 1013.2 hPa |
| Bremerton, Bremerton National Airport, WA | 15 mi | 60 min | SSW 8 | 10.00 mi | Overcast | 52°F | 50°F | 93% | 1013.6 hPa |
| Seattle, Seattle-Tacoma International Airport, WA | 21 mi | 63 min | SSW 8 | 10.00 mi | Mostly Cloudy | 54°F | 48°F | 83% | 1013.1 hPa |
| Pierce County-Thun Field, WA | 23 mi | 61 min | WSW 3 | 10.00 mi | A Few Clouds | 54°F | 50°F | 88% | 1013.2 hPa |
Wind History from TIW (wind in knots)
| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | |
| Last 24hr | Calm | SW | SW | S | SW | W | SW | SW | Calm | W | W | S | S | W | W | SW | W | SW | W G14 | SW | S | |||
| 1 day ago | Calm | Calm | Calm | S | Calm | Calm | W | W | SW | S | S | W | W | S | SE | NE | W | W | W | W | SW | |||
| 2 days ago | N | N | NE | NE | NE | N | N | NE | NE | N | N G17 | N | N | NE | NE | E | NE | Calm | Calm | Calm | Calm | Calm |
Tide / Current Tables for Arletta, Washington
EDIT Weekend mode (on/off) (on/off) Help One Week of DataArletta
Click for Map
Fri -- 01:18 AM PDT Moonrise
Fri -- 04:14 AM PDT 7.06 feet Low Tide
Fri -- 05:24 AM PDT Sunrise
Fri -- 08:54 AM PDT 9.87 feet High Tide
Fri -- 10:33 AM PDT Moonset
Fri -- 03:38 PM PDT 0.18 feet Low Tide
Fri -- 08:50 PM PDT Sunset
Fri -- 11:52 PM PDT 13.38 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:18 AM PDT Moonrise
Fri -- 04:14 AM PDT 7.06 feet Low Tide
Fri -- 05:24 AM PDT Sunrise
Fri -- 08:54 AM PDT 9.87 feet High Tide
Fri -- 10:33 AM PDT Moonset
Fri -- 03:38 PM PDT 0.18 feet Low Tide
Fri -- 08:50 PM PDT Sunset
Fri -- 11:52 PM PDT 13.38 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 13 | 11.5 | 9.5 | 7.8 | 7.1 | 7.3 | 7.9 | 8.8 | 9.6 | 9.9 | 9.4 | 8.1 | 6.2 | 4 | 1.9 | 0.5 | 0.3 | 1.2 | 2.9 | 5.2 | 7.8 | 10.1 | 12 | 13.1 |
Tide / Current Tables for Hale Passage, West end, Washington Current
EDIT (on/off) Help One Week of DataHale Passage
Click for Map
Fri -- 01:06 AM PDT -1.16 knots Max Ebb
Fri -- 01:18 AM PDT Moonrise
Fri -- 05:10 AM PDT 0.00 knots Slack
Fri -- 05:24 AM PDT Sunrise
Fri -- 05:58 AM PDT 0.60 knots Max Flood
Fri -- 07:02 AM PDT -0.00 knots Slack
Fri -- 10:33 AM PDT Moonset
Fri -- 12:00 PM PDT -1.74 knots Max Ebb
Fri -- 04:42 PM PDT 0.01 knots Slack
Fri -- 06:41 PM PDT 1.54 knots Max Flood
Fri -- 08:50 PM PDT Sunset
Fri -- 09:34 PM PDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:06 AM PDT -1.16 knots Max Ebb
Fri -- 01:18 AM PDT Moonrise
Fri -- 05:10 AM PDT 0.00 knots Slack
Fri -- 05:24 AM PDT Sunrise
Fri -- 05:58 AM PDT 0.60 knots Max Flood
Fri -- 07:02 AM PDT -0.00 knots Slack
Fri -- 10:33 AM PDT Moonset
Fri -- 12:00 PM PDT -1.74 knots Max Ebb
Fri -- 04:42 PM PDT 0.01 knots Slack
Fri -- 06:41 PM PDT 1.54 knots Max Flood
Fri -- 08:50 PM PDT Sunset
Fri -- 09:34 PM PDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| -1.1 | -1.2 | -1.1 | -0.9 | -0.6 | -0.1 | 0.6 | 0 | -0.5 | -0.9 | -1.4 | -1.6 | -1.7 | -1.6 | -1.4 | -1 | -0.5 | 0.3 | 1.3 | 1.5 | 1.1 | 0.4 | -0.2 | -0.6 |
Weather Map and Satellite Images
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GOES 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 (4,6,7,8)
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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. |