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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 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 6:20AM | Sunset 8:11PM | Sunday August 25, 2019 6:26 PM PDT (01:26 UTC) | Moonrise 12:00AM | Moonset 3:56PM | Illumination 21% |  |
PZZ130 West Entrance U.s. Waters Strait Of Juan De Fuca- 256 Pm Pdt Sun Aug 25 2019
Tonight..SW wind to 10 kt. Wind waves 1 ft or less. W swell 6 ft at 11 seconds.
Mon..Light wind becoming E to 10 kt in the afternoon. Wind waves 1 ft or less. W swell 5 ft at 10 seconds.
Mon night..W wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 4 ft at 11 seconds.
Tue..E wind to 10 kt. Wind waves 1 ft or less. W swell 4 ft at 10 seconds.
Tue night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 3 ft at 10 seconds.
Wed..NE wind to 10 kt. Wind waves 1 ft or less. W swell 5 ft at 8 seconds.
Wed night..SE wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 4 ft at 8 seconds.
Thu..SW wind to 10 kt. Wind waves 1 ft or less. W swell 4 ft.
Fri..S wind to 10 kt becoming sw 5 to 15 kt. Wind waves 1 ft or less. W swell 3 ft.
Tonight..SW wind to 10 kt. Wind waves 1 ft or less. W swell 6 ft at 11 seconds.
Mon..Light wind becoming E to 10 kt in the afternoon. Wind waves 1 ft or less. W swell 5 ft at 10 seconds.
Mon night..W wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 4 ft at 11 seconds.
Tue..E wind to 10 kt. Wind waves 1 ft or less. W swell 4 ft at 10 seconds.
Tue night..N wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 3 ft at 10 seconds.
Wed..NE wind to 10 kt. Wind waves 1 ft or less. W swell 5 ft at 8 seconds.
Wed night..SE wind to 10 kt in the evening becoming light. Wind waves 1 ft or less. W swell 4 ft at 8 seconds.
Thu..SW wind to 10 kt. Wind waves 1 ft or less. W swell 4 ft.
Fri..S wind to 10 kt becoming sw 5 to 15 kt. Wind waves 1 ft or less. W swell 3 ft.
PZZ100 256 Pm Pdt Sun Aug 25 2019
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue through Monday before turning offshore on Tuesday as a thermal trough builds north along the west coast.
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue through Monday before turning offshore on Tuesday as a thermal trough builds north along the west coast.
7 Day Forecast for Marine Location Near Sekiu, WA
Hourly EDIT Helplocation: 48.34, -124.25 debug
Area Discussion for - Seattle, WA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksew 252220 afdsew area forecast discussion national weather service seattle wa 320 pm pdt Sun aug 25 2019 Synopsis A strong ridge of high pressure will begin to build into the area tonight thru mid-week. Low level onshore flow will also transition to offshore flow, with downslope winds off the cascades late Monday into Tuesday. These conditions will work in tandem to create hot afternoon temperatures and warm nights for late august across western washington this week. Moderate heat risk will accompany these warm temperatures. A weak system may pass by on Thursday, allowing a brief respite in hot conditions, however ridge may build back Friday into the first half of the weekend. Short term tonight through Wednesday **warm temperatures expected this week** northwest aloft still dominates the pacific northwest region this afternoon. Meanwhile in the lower levels, the flow continues onshore as high pressure remains anchored across the northern pacific, with a weak trough still noted across eastern washington. Earlier this morning, a fast moving, weak shortwave trough clipped the northern sections of the cwa. Although the bulk of the deeper layer moisture and stronger lift remained displaced across southeastern bc, the id panhandle, and western montana, a few showers were able to develop across skagit and whatcom counties. As of 21z, this shortwave has departed to the east and now resides across western montana. This activity has largely dwindled this afternoon tho cannot rule out a light shower or two on the backside of this wave, as some mid level vorticity remains in place. Elsewhere, have had some clearing in the mid and upper levels, though a fair weather CU stratocu field exists across the majority of the area. Vis satellite loop show some of these clouds decreasing in coverage, some likely hang around thru the evening. Low level flow will remain onshore overnight albeit weak so morning stratus deck should remain largely confined to the coast Monday morning, perhaps sneaking into parts of the lower chehalis valley SW interior. In the mid and upper levels, heights will continue to rise as an expansive, elongated ridge of high pressure across the pacific california desert SW area builds northward. Skies should clear nicely overnight with sunny skies for tomorrow. Any morning stratus in the aforementioned areas will burn off by late morning. Monday will then be the beginning of a rather warm week for late august. **warm temperatures expected Tuesday-Wednesday** aforementioned ridge of high pressure will continue to build into the region in the mid and upper levels on Tuesday. Large scale subsidence associated with this feature should allow for sunny skies. Meanwhile, in the lower levels, a thermal trough will begin to build northward toward the washington coast from california. This will shift the low level pattern from onshore to offshore, which will begin to create an easterly downslope flow regime off the cascades. This combined with an upper level ridge will create hot conditions for this area and for this time of year. These conditions will carry over into Wednesday, with Wednesday expected to be the warmest day of the week. Forecast currently calls for mid-upper 80s for much of the interior, with low 90s for sw interior and upper 70s-low 80s near bodies of water. The main concerns regarding these warm temperatures will be: heat risk: with Tuesday and Wednesday expected to be very warm, much of the interior can expect moderate heat risk potential. Those sensitive to heat and or those without adequate cooling or hydration sources will need to take necessary precautions, some of which include limiting time spent outdoors as much as possible and drinking plenty of water. Fire weather: refer to fire wx section included below; warm conditions combined with dry, easterly downslope winds off the cascades will make for rather low rh values. This may elevate fire danger concerns. |
These warm temperatures may then follow us into the extended... kovacik Long term Thursday through Sunday On Thursday, the ridge will begin to dampen across the region as a shortwave trough approaches the area from the sw. Guidance is having a tough time determining the amount of moisture associated with this weak system as its projected path takes it across southern washington into eastern washington. For now will keep slight chance of showers in for the far SE portion of the cwa. Enough afternoon destabilization should yield enough CAPE for a chance for a thunderstorm, mainly along and east of the crest, which could pose fire concerns. Despite weak troughing with the shortwave, guidance still keeps temps in the low-mid 80s, so while it may not be quite as hot as Wednesday, it may still remain rather warm. Will have to watch trends over the coming days: more cloud cover and showers could keep things cooler, whereas a weaker system or a more southerly track could keep those conditions to our south. By Friday, the ridge noticeably reestablishes itself across the area, primarily in response to a deepening closed low across the northern pacific. Yesterday, guidance wanted to bring this low towards washington rather quickly with some wetting rain, essentially ending our brief period of heat. Last few model runs now slow this system down considerably, with a more noticeable amplification of the ridge. It remains possible for temps to warm back up Friday and Saturday now. For now not going as high on temperatures as the middle of the week, but have nudged temps a few degrees. Models then diverge later in the weekend regarding closed pacific low. Unfortunately, ensembles don't really help clear anything up. Deterministic ec brings front into the area with showers while gfs keeps ridge over area. Given solutions in previous runs have shown potential for showers, re-introduced just a slight chance, tho it remains possible the closed low could get "cutoff" from faster westerly flow to the north, which if is the case, western washington gets to hang onto the ridge. Right now, leaning slightly towards the more progressive solution, which would favor the ec a tad. Kovacik Aviation Northwesterly flow aloft as an upper level trough departs the pacific northwest. Onshore flow at the surface. Generally a mix ofVFR to MVFR this morning with marine stratus. ExpectVFR for all by late this morning into early this afternoon as upper level ridging builds over the area. Winds generally light becoming northerly later this afternoon. Ksea...VFR CIGS this morning with MVFR possible briefly until 18z- 19z.VFR this afternoon. NE winds becoming SW this afternoon becoming northerly this evening. Winds 4-8 knots. Jd Marine Onshore flow continues into Monday. Winds will gradually weaken this morning. Another round of small craft advisory winds through the strait possible this evening but for now have forecast just under criteria and will monitor latest data this afternoon. Offshore flow returns on Tuesday and will persist through much of the week. Jd Fire weather Very warm temperatures and low relative humidities are expected Tuesday and Wednesday with poor relative humidity recovery especially Tuesday night into Wednesday morning. Wednesday will be the warmest and driest day. Thursday will likely see cooler temperatures and improved relative humidities. Sew watches warnings advisories Wa... None. Pz... None. |
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 |
| NEAW1 - 9443090 - Neah Bay, WA | 19 mi | 56 min | 57°F | 1023.3 hPa | ||||
| 46087 - Neah Bay, WA (Traffic Separation Lighted Buoy) | 27 mi | 36 min | SW 5.8 G 7.8 | 57°F | 56°F | 6 ft | 1022.6 hPa (+0.0) | 57°F |
| LAPW1 - 9442396 - La Push, WA | 36 mi | 50 min | 53°F | 1023.8 hPa | ||||
| PTAW1 - 9444090 - Port Angeles, WA | 45 mi | 50 min | WNW 15 G 19 | 60°F | 53°F | 1022.8 hPa |
Wind History for Neah Bay, WA
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Quillayute, Quillayute State Airport, WA | 31 mi | 93 min | WNW 8 | 10.00 mi | Fair | 64°F | 51°F | 63% | 1023.7 hPa |
Link to 5 minute data for KUIL
Wind History from UIL (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 | NW | N | Calm | Calm | Calm | Calm | Calm | Calm | W | SW | SW | SW | W | W | W | W | NW | |||||||
| 1 day ago | Calm | Calm | Calm | E | E | E | E | Calm | Calm | N | Calm | Calm | SW | W | W | W | W | W | W | NW | ||||
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | N | Calm | NW | W | NW | NW | NW | NW | NW |
Tide / Current Tables for Sekiu, Washington
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSekiu
Click for Map
Sun -- 12:50 AM PDT Moonrise
Sun -- 03:56 AM PDT 2.07 meters Low Tide
Sun -- 06:24 AM PDT Sunrise
Sun -- 10:58 AM PDT 3.30 meters High Tide
Sun -- 02:17 PM PDT 3.16 meters Low Tide
Sun -- 04:55 PM PDT Moonset
Sun -- 08:12 PM PDT Sunset
Sun -- 08:42 PM PDT 4.09 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:50 AM PDT Moonrise
Sun -- 03:56 AM PDT 2.07 meters Low Tide
Sun -- 06:24 AM PDT Sunrise
Sun -- 10:58 AM PDT 3.30 meters High Tide
Sun -- 02:17 PM PDT 3.16 meters Low Tide
Sun -- 04:55 PM PDT Moonset
Sun -- 08:12 PM PDT Sunset
Sun -- 08:42 PM PDT 4.09 meters 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 |
| 3 | 2.6 | 2.3 | 2.1 | 2.1 | 2.2 | 2.4 | 2.6 | 2.9 | 3.1 | 3.3 | 3.3 | 3.3 | 3.2 | 3.2 | 3.2 | 3.3 | 3.4 | 3.7 | 3.9 | 4.1 | 4.1 | 4 | 3.7 |
Tide / Current Tables for Strait of Juan de Fuca Entrance, Washington Current
EDIT (on/off) Help One Week of DataStrait of Juan de Fuca Entrance
Click for Map
Sun -- 12:50 AM PDT Moonrise
Sun -- 03:37 AM PDT -1.64 knots Max Ebb
Sun -- 06:25 AM PDT Sunrise
Sun -- 08:18 AM PDT 0.00 knots Slack
Sun -- 10:47 AM PDT 0.60 knots Max Flood
Sun -- 01:28 PM PDT -0.00 knots Slack
Sun -- 04:57 PM PDT Moonset
Sun -- 05:06 PM PDT -0.88 knots Max Ebb
Sun -- 08:14 PM PDT Sunset
Sun -- 10:12 PM PDT -0.06 knots Min Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:50 AM PDT Moonrise
Sun -- 03:37 AM PDT -1.64 knots Max Ebb
Sun -- 06:25 AM PDT Sunrise
Sun -- 08:18 AM PDT 0.00 knots Slack
Sun -- 10:47 AM PDT 0.60 knots Max Flood
Sun -- 01:28 PM PDT -0.00 knots Slack
Sun -- 04:57 PM PDT Moonset
Sun -- 05:06 PM PDT -0.88 knots Max Ebb
Sun -- 08:14 PM PDT Sunset
Sun -- 10:12 PM PDT -0.06 knots Min Ebb
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 |
| -0.7 | -1 | -1.4 | -1.6 | -1.6 | -1.4 | -1.1 | -0.6 | -0.1 | 0.3 | 0.5 | 0.6 | 0.5 | 0.2 | -0.2 | -0.5 | -0.8 | -0.9 | -0.8 | -0.6 | -0.4 | -0.2 | -0.1 | -0.1 |
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 (21,6,7,8)
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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. |