Saturday, December14, 2019
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Marine Weather and Tides
Oakesdale, WA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:24AMSunset 4:02PM Saturday December 14, 2019 7:50 PM PST (03:50 UTC) Moonrise 7:40PMMoonset 10:48AM Illumination 88% 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 Oakesdale, WA
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location: 47.08, -117.23     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 142352 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 352 PM PST Sat Dec 14 2019

SYNOPSIS. Expect cool weather and snow showers through the weekend, especially across Idaho, where light to moderate snow accumulations are possible in the central Panhandle and the Camas Prairie. Monday and Tuesday will be dry and cool with areas of fog. A return to unsettled weather looks likely by Wednesday night into Friday, which may cause significant impacts to travel, especially over the passes.

DISCUSSION.

The Polar Jet splits over the Gulf of Alaska with the southern branch off the Washington coast digging southward into northern California. The weaker northern branch flows into Alaska and dives down the spine of the Canadian Rockies. The Inland Northwest is sandwiched between the two branches. With chilly, cyclonic northwest flow aloft, our region has favorable mid level lapse rates for convective snow showers. We have been watching showers over the central and southern Idaho Panhandle today. The upslope regions of the southern mountains of Shoshone county, the Camas Prairie, and possibly the Pullman/Moscow areas will be areas to watch tonight into Sunday for accumulating snow. With daytime temperatures in the 30s, snow that occurs at night and early in the morning has the best chance of causing treacherous driving conditions.

Tonight: There is a good deal of uncertainty about the prospect of accumulating snow over southeast Washington and the southern Idaho Panhandle tonight. The NAM has backed off on producing a swath of 2 to 4 inches of snow across the Pomeroy and Pullman areas. The mid-day run (18z) has come into better agreement with the GFS and ECMWF delaying snow until after midnight with accumulations around an inch by mid morning Sunday. For central and northeast Washington and the north Idaho Panhandle, low clouds will persist through the night with low temperatures in the 20s.

Sunday and Sunday Night: The northern branch of the Polar jet is expected to deliver a quick moving upper level disturbance on Sunday. It will take a north to south trajectory dropping out of British Columbia around mid day, crossing the Idaho Panhandle in the afternoon, and moving into southern Idaho Sunday night. The track of this disturbance favors the mountains of southern Shoshone county and the Camas Prairie. At this time, it looks like 2 to 4 inch accumulations in these areas. The afternoon timing of the snow may minimize the impact with air and road temperatures expected to be above freezing. The passage of this wave has the potential to bring some clearing to north central Washington. Places like Omak, Chelan, Wenatchee, and Grand Coulee may see some sunshine Sunday afternoon. The light west to northwest wind may produce another foggy and gloomy day in Pullman with intermittent snow showers.

Monday: Drier weather is expected on Monday as a high pressure ridge builds over the Inland Northwest. Southeast winds should bring clearing to Pullman, Moscow, and possibly Lewiston. Northeast/north central Washington and the Columbia Basin will be stuck in the clouds and fog Monday with afternoon temperatures between 30 and 35. /GKoch

Tuesday and Wednesday: Ridge of high pressure will be slowly moving through the region during this period. Tuesday is expected to be relatively dry with early morning fog. Wednesday will begin the transition into a significantly wet pattern as a Low begins to press into the Oregon Coast. Moisture is expected to begin to be pressed into the Cascades. Blow over moisture is expected to being some showers to the backside of the Cascades and some showers over the Idaho Panhandle. Temperatures are expected to be their coldest of the week with highs ranging from freezing to the upper 20s. Lows will be in the low 20s and upper teens.

Late Wednesday through Saturday:

. Heavy mountain snow with significant travel impacts possible .

The position of the Low will allow for the circulation to bring warm moist air into the region for end of the week. Models are carrying high amounts of moisture with this system. 24 hour precip water amounts are in the 1 inch range. The tricky part of the system is the precip type mainly in the lower elevations. The mountains have potential to receive 1 to 3 feet of snow and could bring impacts to traveling over the passes. The warming trend of the temperatures will increase the snow levels and makes identifying the precip type for the valleys and low elevations difficult. For now, the trend for the Columbia Basin is to start off as snow and slowly transition to rain or a rain-snow mix by Friday and Saturday. Models are indicating several inches of snow impacting portions of the Columbia Basin late Thursday. Temperatures will begin to warm with highs reaching into the upper 30s and low 40s. Lows will climb into the low 30s . /JDC

AVIATION. 00Z TAFS: A couple weather systems pass in the west-northwest over the next 24 hours, while low clouds and localized fog persistent in the boundary layer. Expect IFR conditions to continue, except near LWS early tonight which is forecast to degrade to MVFR later tonight into the overnight. The first weather system passes near the WA/OR/ID border, providing snow chances around PUW/LWS. Smaller chances will be found over COE/SFF/GEG. The second drops in from the northwest through the day Sunday, bringing a bit better snow chances over GEG/SFF/COE/PUW/LWS. Some improvement to MVFR is expected through the afternoon Sunday, with some potential that EAT may improve to VFR but without strong wind to clear things out confidence is low. /Cote'

PRELIMINARY POINT TEMPS/POPS. Spokane 25 32 23 33 24 35 / 10 30 10 0 0 10 Coeur d'Alene 26 34 24 34 24 36 / 20 50 20 10 0 10 Pullman 27 33 23 35 24 34 / 60 60 20 0 0 0 Lewiston 30 38 26 39 25 36 / 60 60 20 0 0 0 Colville 21 35 19 32 20 33 / 10 10 10 0 10 10 Sandpoint 26 33 24 33 24 35 / 20 20 20 10 10 10 Kellogg 26 35 25 33 24 35 / 40 70 30 10 10 10 Moses Lake 23 35 20 31 23 34 / 10 10 0 0 0 10 Wenatchee 24 36 21 31 24 32 / 10 10 0 0 0 20 Omak 21 33 18 29 24 32 / 10 10 0 0 10 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 mi58 minN 08.00 miOvercast33°F30°F92%1015.7 hPa

Link to 5 minute data for KPUW

Wind History from PUW (wind in knots)
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Last 24hrCalmCalmSW4W10W7W4W4W7W6W10W10W10W9W10W10W9W8W10W6
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1 day agoW21
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SW9SW9W10SW9SW7S63SW7W13W9W9W7W4CalmCalmCalm
2 days agoE7E8E8E8E7SE9SE6SE9SE5S5W16
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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 (22,6,7,8)
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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 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.