Saturday, March28, 2020
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Marine Weather and Tides
Oakesdale, 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 6:32AMSunset 7:14PM Saturday March 28, 2020 3:59 PM PDT (22:59 UTC) Moonrise 8:45AMMoonset 11:47PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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 Oakesdale, WA
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location: 47.08, -117.23     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 282206 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 306 PM PDT Sat Mar 28 2020

SYNOPSIS. A more active weather pattern will develop late in the weekend into early next week. The strongest storm system will arrive on Monday with windy conditions expected and the possibility of moderate snow near the Cascades. Mountain snow will linger into Tuesday and Wednesday with below normal temperatures expected through the middle of the week with a slow warming trend after that.


DISCUSSION. Tonight through Sunday night: The first of a couple of weak shortwave troughs is currently pressing up against the Cascades. The snow levels are expected to drop around 3000 ft. overnight with the passage. The current model guidance is bringing a little more moisture amounts. Six hour precip amounts are near half an inch for the crests and near a quart of an inch for the passes. The total snow expected overnight will be in the four to six inch range. The rest of the region remain in mostly isolated rainshowers. As the front passes across the rest of the Inland Northwest, rain shower chances become more widespread. Higher terrains around 3500ft will have a rain/snow mix or snow showers. Late morning and afternoon instability could mix graupel into the showers. The instability will increase into mid Sunday afternoon. An isolated lightning strike cannot be ruled out for the Northern and Eastern WA and the ID Panhandle. Lingering showers are expected for the ID Panhandle into Sunday night. Winds will be breezy across the Basin with sustained near 20 MPH gust near 30 MPH. Another, more robust, trough pushing a cold front will begin pass over the region Sunday night. The end of the period highlights the Cascades snow through late Sunday night with another couple of inches possible. The brunt of this system is expected to be early Monday AM. Overnight temps will be in the 30s to low 40s range. Sunday highs will be in the upper 40s to low 60s range. /JDC

Monday: Our most significant weather day of the week continues to be Monday. A vigorous and fast moving front will produce widespread precipitation including moderate to heavy accumulations in the Cascades. Confidence continues to grow that Monday will be quite windy and there will be potential for thunderstorms.

*Wind: Our wind forecast hasn't changed much for Monday. It still looks like southerly winds will blow in the morning increasing as high as 20 to 30 mph across central and eastern Washington. Mountain ridges in the Cascades and northeast Washington may experience gusts over 50 mph in the morning when our 850mb wind speeds peak between 40-50kts. By mid day the arrival of the cold front will produce a wind shift to the west or southwest. Look for our gust potential to increase as precipitation moves out of the Columbia Basin. Afternoon sustained winds of 20 to 25 mph will be common from Wenatchee and Vantage across the Columbia Basin, Palouse, and Spokane area. Gusts of 40 to 45 mph will be possible. Quick moving afternoon thunderstorms may contain outflow gusts of 50 mph or more over the eastern third of Washington into the Idaho Panhandle. In general, wind speeds in the 40 to 45 mph range aren't that out of the ordinary for our region. They typically cause scattered power outages and break some tree limbs. Areas of blowing dust are a good bet in central Washington near Moses Lake and Othello especially near fields that are being prepared for spring planting.

*Mountain Snow: The Cascade Crest will receive a dump of moderate to heavy snow in the Monday through Tuesday time frame. Stevens Pass will likely receive well over a foot of snow over a 24 to 36 hour period beginning early Monday morning. At this time it looks like peak impacts for the Cascade passes will be Monday morning with the arrival of the heaviest frontal precipitation. Snow levels will be around 3000 feet. More moderate to heavy snow is looking increasingly likely Monday night into Tuesday morning under the cold upper trough. Strong westerly flow combined with the prospect of a Puget Sound Convergence Zone may combine for a dump of late season snow. Total accumulations in the Idaho Panhandle won't be a high as the Cascades, but travel may be impacted at Lookout Pass Monday night into Tuesday morning.

*Thunderstorms: Monday afternoon thunderstorms will be possible along and just behind the cold front. Morning clouds may hinder destabilization, but the NAM and GFS continue to forecast enough cold advection aloft to yield enough surface based instability for the mention of thunderstorms over the eastern third of Washington into the Idaho Panhandle. Cells will be quick movers capable of brief heavy rain, small hail, and outflow gusts of 50 mph.

Tuesday through Friday: Tuesday and Wednesday look chilly, breezy, and showery as the Pacific Northwest remains under the cold upper trough. Snow levels will be quite low, capable of snow to the valley floors at night and in the morning. Shower coverage will peak during the afternoon hours Tuesday and Wednesday with a mixed bag of rain, snow, and graupel. Typical March showers. We should see a bit of a warming trend Thursday and Friday. The models have struggled to lock into how much warmer. /GKoch

AVIATION. 18Z TAFS: A saturated atmosphere over the region is bringing widespread cloud coverage and producing low to mid level cloud decks for the Spokane- Coeur d'Alene corridor and over the Palouse. Afternoon instability could produce isolated showers for the region. Best chances for these showers will be over the Cascade crest and over the higher terrain from the Okanogan Highlands to the Idaho Panhandle. Mountain obscurations through the day today. As more moisture is pushed into the region chances for showers will increase overnight and into Sunday morning with IFR/MVFR conditions possible. /JDC


PRELIMINARY POINT TEMPS/POPS. Spokane 40 53 37 50 31 48 / 40 90 50 100 50 40 Coeur d'Alene 39 49 37 47 31 46 / 50 90 60 100 60 40 Pullman 39 51 36 49 32 46 / 50 90 50 100 60 60 Lewiston 44 57 41 55 37 52 / 40 80 50 90 60 50 Colville 38 54 34 51 27 50 / 50 90 50 100 30 30 Sandpoint 39 47 37 45 31 45 / 70 90 80 100 70 60 Kellogg 39 46 36 44 32 42 / 60 90 80 100 80 70 Moses Lake 42 61 39 57 31 55 / 20 30 10 50 20 10 Wenatchee 39 57 37 52 32 54 / 30 40 20 50 30 20 Omak 40 57 37 52 30 53 / 30 60 20 90 20 20

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




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pullman / Moscow Regional Airport, WA23 mi67 minS 510.00 miOvercast48°F39°F71%1017.3 hPa

Link to 5 minute data for KPUW

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Last 24hrW11SW12SW8SW10SW4S5CalmE4SE6SE4SE5SE5CalmCalmCalmE5E4SE5SW7SW9W8S9SW9S5
1 day agoSW17
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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.
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Wind Forecast for Spokane, WA (18,4,5,8)
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Ground Weather Radar Station Spokane, 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 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.