Saturday, August8, 2020
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Marine Weather and Tides
Long Beach, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:01AMSunset 8:40PM Friday August 7, 2020 11:13 PM PDT (06:13 UTC) Moonrise 9:53PMMoonset 9:08AM Illumination 82% Phase: Waning Gibbous; Moon at 19 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ210 Columbia River Bar- 236 Pm Pdt Fri Aug 7 2020
In the main channel.. - general seas...3 to 5 ft through Saturday. - first ebb...around 815 pm Friday. Seas to 6 ft. - second ebb...around 815 am Saturday. Seas to 7 ft. - third ebb...around 900 pm Saturday. Seas to 7 ft.
PZZ200 236 Pm Pdt Fri Aug 7 2020
Synopsis for the southern washington and northern oregon coast.. High pressure rebuilds across the waters through early next week with thermal low pressure over the far south oregon coast. This will result in periods of gusty northerly winds and steep seas through much of the upcoming week.


7 Day Forecast for Marine Location Near Long Beach, WA
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location: 46.37, -124.05     debug


Area Discussion for - Portland, OR
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FXUS66 KPQR 080408 AAA AFDPQR

Area Forecast Discussion National Weather Service Portland OR 908 PM PDT Fri Aug 7 2020

SYNOPSIS. The weather is likely to remain rather benign over the next few days as a high pressure system offshore keeps a northwest onshore flow. Expect mostly dry weather into early next week with temperatures warming some Sunday and Monday.

SHORT TERM. Tonight through Monday . A weak shortwave seen in water vapor pictures dropping southeast off the coast of Vancouver Island Friday afternoon is expected to push a weak cold front into the region overnight. Model time height cross sections show mainly just a rather narrow band of shallow moisture arriving with this system late tonight, so will limit pops to a slight chance of showers overnight for the north coastal areas. Otherwise the resulting onshore flow should be enough to return area of clouds to the coast and northern interior late tonight and Saturday morning, with little change in high temperatures expected between Friday and Saturday.

Saturday night through Sunday night models are consistent in showing the upper heights rising some, while low level flow turns more northerly due to resurgence of a thermally induced trough of low pressure along the south Oregon coast. This will result in a decrease in the amount of diurnal cloudiness and warming temperatures. Although the upper heights begin to come back down again by Monday, 850 mb temperatures continue to warm, suggesting Monday is likely to be the warmest day of the coming week. With 850 mb temperatures expected to peak around 18C Monday, could see some inland valley high temperatures reaching near 90F.

LONG TERM. Monday night through Friday . Models are in general agreement showing the more or less zonal flow early next week, evolving into a trough over the region, before shifting east of the Cascades at the end of the week. While the ultimate depth of the trough is not well agreed upon, there is enough uncertainty in the strength to include a small chance of showers over parts of southwest Washington Wednesday and Thursday. Otherwise expect temperatures to run a little below normal through the middle and latter parts of the week.

AVIATION. Predominately clear skies through the area expected through Sat as high pressure develops over the Pacific. Satellite imagery shows some lower clouds just off shore and radar is depicting rain north of the area. Much of this rain is falling as virga at this time. Overnight, models are hinting at a lowering of cigs along the north Oregon/south Washington coastline as the light onshore flow brings that cloud deck inland. Likely MVFR cigs around KAST with the potential for some rain showers or drizzle. After 16Z Sat look for VFR conditions to return along the coast and persist across the area through Saturday. Could see some gustier northerly winds through the valley to near 20 kt Sat afternoon while the coastal airports could see gusts up to 30 kt Sat evening.

KPDX and APPROACHES . No concerns. VFR skies with light winds overnight becoming gusty in the afternoon. -Muessle

MARINE. High pressure will build across the waters through early next week with an inverted thermal trough over the far south Oregon coast. North winds will increase to 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 feet at 12 seconds Sat afternoon. Highest gusts of 30 kt possible south of Cascade Head west of 10 NM. These strongest winds will occur through the afternoon as the temperature gradient becomes the most compact. Small craft conditions will likely persist into early next week. Will see winds weaken with gusts to 25 kt Mon afternoon before easing below small craft criteria Tue morning. Seas will follow suit as the wind wave component eases. -Muessle/42

PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . Small Craft Advisory from 11 AM Saturday to 11 PM PDT Sunday for coastal waters from Cape Shoalwater WA to Florence OR out 60 NM.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46243 - Clatsop Spit, OR - 162 11 mi48 min 56°F4 ft
ASTO3 - 9439040 - Astoria, OR 19 mi56 min NNW 4.1 G 7 64°F 70°F1021 hPa
TOKW1 - 9440910 - Toke Point, WA 24 mi56 min WNW 1 G 1.9 63°F 65°F1021.3 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 28 mi44 min WSW 3.9 G 3.9 64°F1021.4 hPa
46211 - Grays Harbor, WA (036) 35 mi48 min 60°F4 ft
46248 - Astoria Canyon, OR (179) 35 mi48 min 64°F5 ft
WPTW1 - 9441102 - Westport, WA 37 mi98 min SSW 1.9 G 1.9 61°F 61°F1021.2 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR17 mi19 minN 010.00 miOvercast60°F57°F90%1020.9 hPa

Link to 5 minute data for KAST

Wind History from AST (wind in knots)
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Last 24hrSW3S4S3SE3SE3SE3E4SE4SE4SE3W6W6SW4W8W10W7W6NW9W7NW8W6W4CalmCalm
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Tide / Current Tables for Tarlatt Slough, Willapa Bay, Washington
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Tarlatt Slough
Click for Map
Sat -- 05:13 AM PDT     7.53 feet High Tide
Sat -- 06:06 AM PDT     Sunrise
Sat -- 11:11 AM PDT     Moonset
Sat -- 12:03 PM PDT     0.50 feet Low Tide
Sat -- 06:00 PM PDT     7.82 feet High Tide
Sat -- 08:35 PM PDT     Sunset
Sat -- 11:11 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.72.64.25.76.97.57.36.44.93.4210.51.12.84.66.27.37.87.56.45.13.82.7

Tide / Current Tables for Fort Canby, Jetty A, Columbia River, Washington
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Fort Canby
Click for Map
Sat -- 04:10 AM PDT     6.89 feet High Tide
Sat -- 06:07 AM PDT     Sunrise
Sat -- 10:10 AM PDT     0.44 feet Low Tide
Sat -- 11:11 AM PDT     Moonset
Sat -- 04:57 PM PDT     7.16 feet High Tide
Sat -- 08:35 PM PDT     Sunset
Sat -- 10:44 PM PDT     2.02 feet Low Tide
Sat -- 11:11 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.34.55.76.56.96.65.43.82.210.50.71.63.14.666.97.26.75.64.232.22

Weather Map
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wmap_P
GEOS 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (2,6,7,8)
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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 numerous 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.