Tuesday, February25, 2020
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Marine Weather and Tides
Wenatchee, 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 6:47AMSunset 5:41PM Tuesday February 25, 2020 6:45 AM PST (14:45 UTC) Moonrise 8:07AMMoonset 7:51PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 Wenatchee, WA
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location: 47.43, -120.33     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 251142 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 342 AM PST Tue Feb 25 2020

SYNOPSIS.

The weather today will be seasonably cool with a mix of clouds and sun. A weak weather disturbance will bring clouds and light mountain snow to the Cascades and mountains of the Idaho Panhandle on Wednesday. Temperatures on Friday will likely be well above average with many areas climbing into the 50s. The arrival of a frontal system on Saturday will push temperatures down closer to average and bring increasing chances for rain and mountain snow.

DISCUSSION. Today through Friday . Good model agreement exists for this period featuring an upper level rideg over the region today providing benign but seasonably cool conditions with some passing clouds filtering the sun at times. Tonight this ridge flattens in response to a weak wave cresting over the top of it . with a fetch of moisture creating mountain snow showers particularly along the Cascade crest and the rising terrain of the Idaho Panhandle. Some of these overnight and Wednesday morning snow showers may back fill into the eastern Columbia Basin as flurries or late morning sprinkles. This moist zonal flow will continue Wednesday night and into Thursday . but with nothing to trigger any lift beyond orographic forcing on the whole the region will enjoy dry but variably cloudy conditions . and through this whole two day period any mountain snow accumulations will be light and probably not impactful for any travelers.

Friday will feature another upper level ridge in response to a stronger upstream trough approaching the region. Conditions will be dry under this ridge and the warm advection ahead of the next system will promote some of the mildest temperatures of the year so far with high temperatures on Friday cresting in the mid 50s over the basin and upper 40s to lower 50s in the northern valleys.

Saturday through Monday . Ensemble model average fields of motion for the GFS and ECMWF indicate a good chance of a somewhat vigorous short wave trough passage on or about Saturday . maybe Friday night or during the day Saturday depending on the particular model . which will bring the next chance of more widespread precipitation. This looks like a quick hitting system with minor snow accumulations on the higher terrain and if the transit occurs overnight Friday or early Saturday then valley precipitation will probably be non-accumulating snow. In any event the bigger story with this system will be another windy and gusty day on Saturday.

For Sunday and Monday there is some model disagreement regarding details but both the ensemble mean fields of motion suggest a split flow regime on Sunday that may direct any significant forcing to the south of the forecast area but this far out it is too early to get a good grip on this prospect so the forecast will feature unsettled and seasonably cool conditions leading into the next work week. /Fugazzi

AVIATION. 12Z TAFS: VFR conditions with mid and high level clouds expected across TAF locations through 12Z Wednesday. The approach of a weak disturbance today and tonight will promote increasing and thickening high clouds today with ceilings lowering overnight tonight but ceilings will remain VFR. After 09Z widely scattered -SHSN are possible in the vicinity of the KCOE and KPUW TAF sites with low confidence that the TAF sites will be impacted with MVFR temporary conditions. /MJF

PRELIMINARY POINT TEMPS/POPS. Spokane 43 30 46 30 49 30 / 0 10 10 0 0 0 Coeur d'Alene 42 30 44 30 48 30 / 0 20 10 0 0 0 Pullman 42 32 46 32 50 33 / 0 20 10 0 0 0 Lewiston 48 36 51 35 55 36 / 0 20 10 0 0 0 Colville 43 26 46 27 48 28 / 0 10 0 0 0 0 Sandpoint 38 28 41 30 44 30 / 0 20 20 0 10 0 Kellogg 38 29 40 31 45 30 / 0 20 30 0 10 0 Moses Lake 48 30 53 31 55 31 / 0 10 10 0 0 0 Wenatchee 45 32 51 33 52 33 / 0 10 0 0 0 0 Omak 44 29 47 30 48 32 / 0 10 0 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES. ID . None. WA . None.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wenatchee - Pangborn Memorial Airport, WA7 mi51 minW 610.00 miFair29°F21°F75%1036.9 hPa

Link to 5 minute data for KEAT

Wind History from EAT (wind in knots)
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Last 24hrNW5CalmE3Calm3N6NW9W11NW11NW11W17
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1 day agoCalmSE7SE10
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2 days agoE4NE3E4SE63SE6SE6CalmCalmSW5NW9NW10NW8N9NW5W6NW8NW3NW4NW8NW7NW5CalmE3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 Spokane, WA (9,2,3,4)
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Ground Weather Radar Station Spokane, WA
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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.