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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 6:15AM | Sunset 8:14PM | Friday August 18, 2017 11:03 AM PDT (18:03 UTC) | Moonrise 1:45AM | Moonset 5:06PM | Illumination 13% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ210 Columbia River Bar- 852 Am Pdt Fri Aug 18 2017 .small craft advisory for rough columbia river bar in effect late tonight... In the main channel..Combined seas 4 to 5 ft today and tonight. However, seas will temporarily build to 6 or 7 ft during the ebb around 3 pm this afternoon, and to 8 or 9 ft with breakers during the strong ebb around 315 am tonight. | PZZ200 852 Am Pdt Fri Aug 18 2017 Synopsis for southern washington and northern oregon coast.. High pres will persist over the coastal waters through early next week with thermal low pres mainly over nw ca which will maintain northerly winds along the coast, strongest in the central oregon waters. |
7 Day Forecast for Marine Location Near Cedar Mill, OR
Hourly EDIT Helplocation: 45.58, -122.77 debug
Area Discussion for - Portland, OR
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 kpqr 181606 afdpqr area forecast discussion national weather service portland or 906 am pdt Fri aug 18 2017 Synopsis Onshore winds continue the next several days. Slight variations of the upper level pressure pattern will result in slight variations in how expansive nighttime morning clouds will be through early next week. The clouds should clear in the afternoons with temperatures remaining near or above the seasonal normals. An upper level ridge is expected early next week for less clouds and slightly warmer temperatures. Short term Today through Sunday night... Satellite imagery shows cloudy skies over the SW washington and NW oregon coast, the willapa hills, and parts of the SW washington cascade foothills and north willamette valley this morning. Otherwise the skies are clear in most areas of NW oregon. Today's weather will be near the seasonal normal with temperatures peaking in the mid 60s for the coast and low 80s for the willamette valley. A weak upper level trough will move over the pacific NW late tonight and Saturday morning for an increase of clouds across the region. Am fairly confident that the north willamette valley will be cloudy Saturday morning as well as the south washington and north oregon cascade foothills. Am less confident that the low clouds will make it to the central and south willamette valley. Clearing Saturday afternoon will allow for near normal afternoon temperatures (inland low 80s). There will be little change Saturday night and Sunday as another weak upper level trough moves over the area. ~tj Long term Monday through Thursday: the numerical weather models are showing slight variations in the upper level pattern and low-level winds that is challenging the forecast confidence for Monday's eclipse forecast. A weak upper level shortwave trough and a decaying nearby front will likely bring clouds to the north coast and the lower columbia river valley near scapoose and kelso. The forecast confidence for those areas seeing clouds is fairly high. There will also likely be clouds for the north willamette valley including the portland metro area, but the extent and timing of these clouds are less certain. There is a possibility though that these clouds will not clear in time for the eclipse. Also think the sw washington and north oregon cascade foothills will have some clouds near the eclipse time, and have increased sky cover for these areas. With the low-level moisture increasing from a potential nearby decaying front, there is decreased forecast confidence of clear skies for the central willamette valley including the salem area. Low clouds creeping into the central willamette valley is not out of the question, and have increased the sky cover just a tad, but have kept it below 15% which translates to mostly clear skies. The central oregon coast near new port and lincoln city still have the potential |
for partial clearing Monday morning with NE winds just above the surface. The bottom message here is that areas east of the cascades have the best chance for having clear skies for viewing the eclipse. Temperatures will be slightly warmer Monday afternoon as an upper level ridge moves over the area temperatures in the willamette valley may reach into the upper 80s. Of course if more clouds form in the morning, these temperatures will be adjusted cooler. An upper level trough approaches Monday night and Tuesday from the nw enhancing the upper ridge over the region. Meanwhile an upper low settles over central california. This will result in above normal afternoon temperatures with possibly some cascade showers in the afternoons. The trough will move through Wednesday and Thursday and possibly bring a surface cold front with it. Cooler temperatures with increasing chances for rain is therefore expected late next week. ~tj Aviation Expect predominately MVFR CIGS along the north coast this morning. The central coast looks to remainVFR this morning, but could see brief periods of localized ifr fog through around 17z. Conditions along the north coast may briefly improve toVFR this afternoon but that is not certain. The remains of a weak frontal boundary will fuel another surge of stratus along the coast tonight and Saturday morning and inland later tonight and Saturday for high ifr to low MVFR along the coast and lower MVFR inland in a good part of the willamette valley. Kpdx and approaches... PredominatelyVFR today and this evening with just briefly a few stratus near 1200 ft this morning. Look for lower MVFR CIGS again after 08z tonight. Pt Marine Expect a rather persistent pattern through early next week with high pres over the coastal waters and thermal low pres over NW california and SW oregon. This will maintain northerly winds, with gustier winds in afternoon evenings, primarily to south of newport. A SCA for winds is now in effect from this afternoon through Sat night for the central waters. The winds may ease a bit Sun and Sun night then increase again Mon afternoon. Seas will generally be around 5 to 6 ft through the period, but may build to around 7 or 8 ft at times to south of newport with the stronger north winds. Pt Pqr watches warnings advisories Or... None. Wa... None. Pz... Small craft advisory for winds from 3 pm this afternoon to 5 am pdt Sunday for coastal waters from cascade head or to florence or out 60 nm. Small craft advisory for rough columbia river bar from 2 am to 5 am pdt Saturday. Interact with us via social media: |
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 |
| LOPW1 - 9440422 - Longview, WA | 38 mi | 46 min | 71°F | 1022.6 hPa | ||||
| TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR | 61 mi | 46 min | 51°F | 1022.9 hPa | ||||
| ASTO3 - 9439040 - Astoria, OR | 68 mi | 46 min | S 1.9 G 5.1 | 60°F | 71°F | 1022.9 hPa |
Wind History for Longview, WA
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Pearson Airfield, WA | 6 mi | 71 min | Var 6 | 10.00 mi | Partly Cloudy | 66°F | 55°F | 68% | 1022 hPa |
| Portland, Portland International Airport, OR | 9 mi | 71 min | N 3 | 10.00 mi | Mostly Cloudy | 64°F | 54°F | 70% | 1022.3 hPa |
| Portland-Hillsboro Airport, OR | 10 mi | 71 min | Var 3 | 10.00 mi | Fair | 66°F | 54°F | 65% | 1021.9 hPa |
| Scappoose Industrial Airpark, OR | 14 mi | 71 min | ENE 5 | 10.00 mi | Fair | 67°F | 53°F | 61% | 1021.9 hPa |
| Portland, Portland-Troutdale Airport, OR | 20 mi | 71 min | SW 5 | 10.00 mi | Overcast | 61°F | 54°F | 78% | 1022.3 hPa |
| Aurora State Airport, OR | 23 mi | 71 min | N 6 | 10.00 mi | A Few Clouds | 68°F | 52°F | 57% | 1022.2 hPa |
Wind History from VUO (wind in knots)
| 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 | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | NW | W | W | W G15 | W | NW | N | NW | N | NW | NW | NW | NW | NW | N | Calm | Calm | Calm | Calm | W | ||||
| 1 day ago | NW | W | NW | NW | NW | NW | N G15 | N | NW | NW | NW | NW | NW | NW | NW | NW | N | NW | NW | |||||
| 2 days ago | N | W | G14 | W G19 | N G15 | N | NW | NW | NW | NW | NW | NW | NW | NW | Calm | Calm | Calm | NW | NW | W |
Tide / Current Tables for St. Johns, Willamette River, Oregon - IGNORE HEIGHTS
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| St. Johns Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the Fri -- 02:45 AM PDT Moonrise Fri -- 03:22 AM PDT 8.41 feet High Tide Fri -- 06:15 AM PDT Sunrise Fri -- 12:58 PM PDT -0.66 feet Low Tide Fri -- 05:00 PM PDT 6.66 feet High Tide Fri -- 06:06 PM PDT Moonset Fri -- 08:13 PM PDT Sunset 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 |
| 2.6 | 4.3 | 6.7 | 8.3 | 8.3 | 7.7 | 6.7 | 5.4 | 4 | 2.6 | 1.3 | 0.3 | -0.4 | -0.7 | 0.5 | 2.9 | 5.5 | 6.7 | 6.4 | 5.9 | 5.1 | 4.3 | 3.5 | 2.8 |
Tide / Current Tables for Vancouver, Washington - IGNORE HEIGHTS
EDIT (on/off) Help One Week of Data| Vancouver Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the Fri -- 02:44 AM PDT Moonrise Fri -- 03:59 AM PDT 8.41 feet High Tide Fri -- 06:15 AM PDT Sunrise Fri -- 01:10 PM PDT -0.66 feet Low Tide Fri -- 05:37 PM PDT 6.66 feet High Tide Fri -- 06:05 PM PDT Moonset Fri -- 08:12 PM PDT Sunset 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 |
| 2.5 | 3.6 | 5.7 | 7.6 | 8.4 | 8.1 | 7.3 | 6 | 4.6 | 3.1 | 1.7 | 0.6 | -0.3 | -0.7 | -0 | 1.9 | 4.4 | 6.3 | 6.6 | 6.2 | 5.5 | 4.6 | 3.7 | 3 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of PacificNorthwest EDIT  |
Wind Forecast for Portland, OR (14,3,4,5)
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Ground Weather Radar Station Portland, OR
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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. |