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Marine Weather and Tides
Version 3.4 |
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 5:37AM | Sunset 8:58PM | Monday July 22, 2019 3:40 PM PDT (22:40 UTC) | Moonrise 11:00PM | Moonset 10:20AM | Illumination 67% |  |
PZZ135 Puget Sound And Hood Canal- 248 Pm Pdt Mon Jul 22 2019
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind to 10 kt. Wind waves 1 ft or less.
Tue night..N wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A chance of showers in the evening. A slight chance of showers after midnight.
Wed..S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Wed night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Thu..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Thu night..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less.
Sat..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind to 10 kt. Wind waves 1 ft or less.
Tue night..N wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A chance of showers in the evening. A slight chance of showers after midnight.
Wed..S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Wed night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Thu..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Thu night..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less.
Sat..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 248 Pm Pdt Mon Jul 22 2019
Synopsis for the northern and central washington coastal and inland waters..Weak high pressure is near the coast with low pressure inland. Marine air will push into western washington through this evening and a stronger marine push will develop Tuesday evening. Westerly gales are likely in the strait of juan de fuca Tuesday evening.
Synopsis for the northern and central washington coastal and inland waters..Weak high pressure is near the coast with low pressure inland. Marine air will push into western washington through this evening and a stronger marine push will develop Tuesday evening. Westerly gales are likely in the strait of juan de fuca Tuesday evening.
7 Day Forecast for Marine Location Near Shelton, WA
Hourly EDIT Helplocation: 47.2, -123.08 debug
Area Discussion for - Seattle, WA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksew 222209 afdsew area forecast discussion national weather service seattle wa 309 pm pdt Mon jul 22 2019 Synopsis A trough of low pressure will approach the area on Tuesday, carrying with it a weak cold front. Showers and a few thunderstorms will develop across the cascades tues afternoon, with scattered showers developing across portions of the northern interior by tues evening. Conditions gradually clear Wed and thurs as a low amplitude ridge sets in. Troughing returns Friday for a few showers followed by dry NW flow aloft for the weekend. Short term tonight through Thursday The synoptic pattern this afternoon is characterized by a longwave trough of low pressure extending roughly from the gulf of alaska, into the northern pacific, and towards the western us coastline. Downstream from this, a high amplitude ridge, centered around the 4 corners area, encompasses much of the desert southwest great basin southern rockies and extends northward into the canadian rockies. A longwave trough can then be found downstream of this ridge across much of the us east of the mississippi river. At the sfc, a weakening front was detected offshore the pacific NW coast, with a large area of high pressure encompassing much of the great plains and midwest in the wake of a nearly stationary boundary extending from the southern plains into the northeast. Closer to home, the longwave pacific trough will be the main sensible weather maker for western washington. Most of the shorter wave activity has pulled north of the local area, however, the aforementioned weakening frontal boundary is associated with one of these northward moving shortwaves. The mid and high level cloud shield pushing into the olympic peninsula (seen well in ir and vis imagery this afternoon) is evidence of its presence. Most of the state this afternoon is under sunny skies with temperatures cooler than the previous few days. Some of these pre-frontal mid and high clouds will pass over the portions of the area into the evening hours, with some additional cloud cover remaining over the cascades. The remainder of today will be dry and overall pleasant. Overnight tonight, a much stronger shortwave trough will rotate about the broader scale pattern and deepen the troughing pattern across the area. Mid level height falls will accompany this while the lower levels feature another, stronger marine push. This should bring the stratus clouds further inland than what was experienced this morning, expecting this layer to reach the sound by daybreak. The stratus should then gradually diminish towards the afternoon, but given disturbed mid and upper levels, there will likely be cloud cover above the marine layer. So expecting noticeably more cloud cover for much of Tuesday. In addition, the cascades will remain in an unstable environment coinciding with moisture and lift. This should allow for the development of showers and few thunderstorms across these mountains by the afternoon. The actual shortwave does not move onshore until tomorrow evening night where it will try to take on a slight negative tilt thru the area. Scattered showers will likely develop as this happens, mainly from the south sound to the northern border. These showers will gradually lift northward through the area into early Wednesday where we should then begin to "clear out." cloud cover will hang a bit Wednesday, especially so over the north where any showers may linger into the afternoon. |
Heights should rise quickly thru the day Wednesday as the system lifts out of the area. Thursday looks like a nice day across the area as the system fully clears the area and a low amplitude ridge builds in. Should see generally sunny skies with temps rebounding back towards 80. Kovacik Long term Friday through Monday The long term begins with the low amplitude ridge pushing east of the area, ready to be replaced by a weak trough pattern. It appears a shortwave trough will clip over the area which may be strong enough to squeeze out a few showers across the area as it passes. Expect any activity to begin to dwindle in coverage into Saturday. The region then appears to be under the influence of NW flow aloft through the remainder of the weekend. The atmosphere looks to be dry at this time so will keep a dry forecast in place for now. In fact this pattern may hold through early next week. Kovacik Aviation The air is unstable over the cascades but stable elsewhere. Marine clouds along the coast will spread inland overnight. Tuesday should see morning clouds breaking up for the afternoon. An upper trough will move through the area Tuesday night. Southwest flow aloft. Ksea... Morning clouds are a good bet Tuesday. The wind has been variable around puget sound this afternoon, so until it chooses a direction will continue to show light and variable winds. Marine There is weak high pressure near the coast with low pressure inland. The westerly push in the strait could reach gales this evening but for now will keep with 20-30kt and go for gales Tuesday evening when the wrfgfs showed a stronger push induced by the upper trough moving through the area. The rest of the week Wednesday through Saturday should see small craft advisory strength westerlies in the strait of juan de fuca at times although with another upper trough reaching the area Friday night maybe a round of gales could occur around that time as well. 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... Small craft advisory until 11 pm pdt this evening for san juan county. Pz... Gale watch from Tuesday afternoon through late Tuesday night for central u.S. Waters strait of juan de fuca-east entrance u.S. Waters strait of juan de fuca. Small craft advisory until 5 pm pdt Tuesday 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 admiralty inlet-northern inland waters including the san juan islands. |
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 | 19 mi | 46 min | 74°F | 1017.3 hPa | 50°F | |||
| TCMW1 - 9446482 - Tacoma Met, WA | 35 mi | 58 min | NW 9.9 G 11 | |||||
| TCNW1 - 9446484 - Tacoma, WA | 36 mi | 58 min | 77°F | 56°F | 1017.3 hPa | |||
| WPOW1 - West Point, WA | 47 mi | 40 min | NE 5.1 G 6 | 69°F | 1017.6 hPa (-0.3) | 56°F |
Wind History for Tacoma MET, WA
(wind in knots) EDIT (on/off) Help| 4 PM | 5 PM | 6 PM | 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 | |
| Last 24hr | W | W | W | NW | N G9 | NW | NW | NW G8 | NW | NW | NW | W | SW G7 | SW | SW | SW G4 | S G4 | N | NW | NW | NW | NW | NW | NW |
| 1 day ago | N | N G14 | N G12 | NW | N | NW | NW | NW G11 | W | SW | W | -- | W | N | E | NE | N | N | NW | NW | W | W | W | W |
| 2 days ago | N | N | N | N G13 | N | N | N | N | NE G8 | W | W | W | NW | -- | E | E | NW | W | W | W | NW | N | 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 |
| Shelton, Shelton Sanderson Field, WA | 4 mi | 47 min | SW 16 G 23 | 10.00 mi | Fair | 80°F | 52°F | 38% | 1016.6 hPa |
| Olympia, Olympia Airport, WA | 18 mi | 46 min | SW 8 | 10.00 mi | Fair | 80°F | 48°F | 34% | 1017.2 hPa |
Wind History from SHN (wind in knots)
| 4 PM | 5 PM | 6 PM | 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 | |
| Last 24hr | W | NW | W G19 | SW | W | W G20 | W | W | W | W | W | W | W | W | W | SW G16 | SW | SW | SW G17 | SW | SW | SW | SW G23 | |
| 1 day ago | N | N | N | N | N | Calm | Calm | Calm | Calm | Calm | Calm | Calm | W | NW | Calm | Calm | Calm | W | Calm | SE | Calm | Calm | SW | |
| 2 days ago | Calm | Calm | E | E | NW | N | SW | Calm | W | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | E |
Tide / Current Tables for Shelton, Washington
EDIT Weekend mode (on/off) (on/off) Help One Week of DataShelton
Click for Map
Mon -- 05:39 AM PDT Sunrise
Mon -- 05:46 AM PDT 4.53 feet Low Tide
Mon -- 10:10 AM PDT 10.36 feet High Tide
Mon -- 11:21 AM PDT Moonset
Mon -- 05:12 PM PDT 1.45 feet Low Tide
Mon -- 08:57 PM PDT Sunset
Mon -- 11:33 PM PDT 14.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 05:39 AM PDT Sunrise
Mon -- 05:46 AM PDT 4.53 feet Low Tide
Mon -- 10:10 AM PDT 10.36 feet High Tide
Mon -- 11:21 AM PDT Moonset
Mon -- 05:12 PM PDT 1.45 feet Low Tide
Mon -- 08:57 PM PDT Sunset
Mon -- 11:33 PM PDT 14.18 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 |
| 13.9 | 12.6 | 10.5 | 8.2 | 6.1 | 4.8 | 4.6 | 5.7 | 7.5 | 9.4 | 10.3 | 10.1 | 9.1 | 7.6 | 5.7 | 3.8 | 2.2 | 1.5 | 2 | 3.9 | 6.8 | 9.9 | 12.5 | 14 |
Tide / Current Tables for Hammersley Inlet, W of Skookum Pt, Washington Current
EDIT (on/off) Help One Week of DataHammersley Inlet
Click for Map
Mon -- 02:24 AM PDT -1.36 knots Max Ebb
Mon -- 05:38 AM PDT Sunrise
Mon -- 06:01 AM PDT 0.00 knots Slack
Mon -- 08:33 AM PDT 1.01 knots Max Flood
Mon -- 10:33 AM PDT -0.00 knots Slack
Mon -- 11:20 AM PDT Moonset
Mon -- 01:55 PM PDT -1.57 knots Max Ebb
Mon -- 05:35 PM PDT 0.00 knots Slack
Mon -- 08:57 PM PDT Sunset
Mon -- 08:59 PM PDT 1.77 knots Max Flood
Mon -- 11:55 PM PDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 02:24 AM PDT -1.36 knots Max Ebb
Mon -- 05:38 AM PDT Sunrise
Mon -- 06:01 AM PDT 0.00 knots Slack
Mon -- 08:33 AM PDT 1.01 knots Max Flood
Mon -- 10:33 AM PDT -0.00 knots Slack
Mon -- 11:20 AM PDT Moonset
Mon -- 01:55 PM PDT -1.57 knots Max Ebb
Mon -- 05:35 PM PDT 0.00 knots Slack
Mon -- 08:57 PM PDT Sunset
Mon -- 08:59 PM PDT 1.77 knots Max Flood
Mon -- 11:55 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 |
| -0.5 | -1.1 | -1.3 | -1.3 | -1.1 | -0.7 | -0 | 0.6 | 1 | 0.9 | 0.4 | -0.3 | -0.9 | -1.4 | -1.6 | -1.4 | -1 | -0.4 | 0.3 | 1 | 1.6 | 1.8 | 1.5 | 0.7 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (18,4,5,8)
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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. |