Friday, August7, 2020
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Marine Weather and Tides
Klickitat, 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 5:49AMSunset 8:25PM Friday August 7, 2020 12:04 PM PDT (19:04 UTC) Moonrise 9:40PMMoonset 8:55AM Illumination 85% Phase: Waning Gibbous; Moon at 18 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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7 Day Forecast for Marine Location Near Klickitat, WA
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location: 46.09, -121.02     debug


Area Discussion for - Pendleton, OR
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FXUS66 KPDT 071500 AFDPDT

Area Forecast Discussion National Weather Service Pendleton OR 800 AM PDT Fri Aug 7 2020

SHORT TERM. Clear skies over the forecast area this morning. Expect a sunny and cooler day with highs in the 70s to lower 80s. Satellite shows a weak short wave will move across the region tonight into Saturday morning. Partly cloudy skies with increasing winds during the day.

PREV DISCUSSION. /issued 243 AM PDT Fri Aug 7 2020/

SHORT TERM . Today through the Weekend . Pleasant conditions will take hold over the coming days as we remain beneath the influence of a broad upper trough over southwestern Canada. This will mean generally dry conditions with temperatures some 5 to 10 degrees below normal through the weekend, though spotty showers could occur across the Central Washington Cascades.

A cooler and drier airmass has filled in behind yesterdays cold front. This will make for a rather chilly August morning in many areas with widespread low temperatures in the 40s and lower 50s. Some areas of southern/central Oregon will even fall to near freezing by sunrise, especially the higher elevation valleys. Some patchy frost may occur, though moisture is quite shallow. Temperatures to warm up nicely through the day with little in the way of cloud cover east of the Cascades. Widespread 70s and low 80s can be expected.

A bit of a warmup is expected into the weekend as the airmass begins to modify and the trough axis shift slightly east into south-central Canada and the far northern Rockies region. This will still maintain a northwest flow with dry pleasant weather. Highs look to reach the low to mid 80s in the lower elevations both Saturday and Sunday. Lows generally remain in the 50s outside of the colder spots in central and southern Oregon. As low pressure develops east of the Cascades, we could see another breezy day Saturday afternoon and evening through the Cascade gaps and eastern Columbia Gorge. This may lead to elevated wildfire danger, though humidities generally look to remain 20 to 30 percent. Will have to monitor this closely in case more substantial fire weather concerns become apparent. 79/Austin

LONG TERM . Monday through Saturday . A dry westerly flow aloft will prevail on Monday through Tuesday with very warm temperatures. The atmosphere will be stable through this period. Then on Wednesday a cold front will approach the PacNW bringing first increasing clouds by afternoon Wednesday, followed by mostly cloudy and breezy conditions for Thursday. There will be a slight chance of showers late Thursday and Thursday night. Right now moisture looks to be very limited, but the atmosphere will be stable. Therefore am not expecting much in the way of thunderstorm activity. The main impact from this system will be slightly cooler temperatures and increasing winds. This may cause elevated fire conditions on Thursday due to wind combined with low humidity, and will need to keep alert to a potential need of fire weather highlights. The GFS is the most bullish with the trough, precipitation, wind, and cooler temperatures. The National Blend looks to be the best way to go because this system was not forecast by any of the models 24 hours ago. Therefore can't buy off on the GFS and will take a compromise between it and two other long range models (ECMWF and Canadian). The National Blend looks like a good choice for this compromise. This system will persist Thursday night and early Friday morning with a cold front passage. After that it will be drier and slightly cooler Friday into Saturday. 88

AVIATION . 12Z TAFs . VFR conditions will prevail during the next 24 hours with mostly clear skies. It will be breezy in the afternoon in the eastern Columbia Gorge terminal (KDLS) and over the central Oregon terminals (KRDM and KBDN). Wind speeds will be mostly 5 to 10 mph except for KDLS, KRDM and KBDN where wind speeds could reach 10 to 20 mph. 88

PRELIMINARY POINT TEMPS/POPS. PDT 80 53 85 54 / 0 0 0 0 ALW 81 55 86 54 / 0 0 0 0 PSC 84 56 89 58 / 0 0 0 0 YKM 82 53 85 54 / 0 0 0 0 HRI 83 55 88 56 / 0 0 0 0 ELN 78 53 78 53 / 0 10 0 0 RDM 80 44 84 45 / 0 0 0 0 LGD 76 49 81 53 / 0 0 0 0 GCD 78 49 85 52 / 0 0 0 0 DLS 83 58 84 59 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None.

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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Dalles Municipal Airport, WA33 mi72 minNW 610.00 miFair72°F45°F38%1020.3 hPa

Link to 5 minute data for KDLS

Wind History from DLS (wind in knots)
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2 days ago33S5NW95W12NW7NW13NW12NW10NW16
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Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)
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Vancouver
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Fri -- 05:59 AM PDT     0.34 feet Low Tide
Fri -- 06:02 AM PDT     Sunrise
Fri -- 10:03 AM PDT     Moonset
Fri -- 10:09 AM PDT     1.62 feet High Tide
Fri -- 06:19 PM PDT     -0.06 feet Low Tide
Fri -- 08:29 PM PDT     Sunset
Fri -- 10:46 PM PDT     Moonrise
Fri -- 10:53 PM PDT     1.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.2110.90.70.50.30.50.91.41.61.51.20.90.70.60.40.2-000.40.91.41.5

Tide / Current Tables for
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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Pendleton, OR (15,3,4,5)
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Ground Weather Radar Station Pendleton, OR
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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.