Friday, October30, 2020
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Marine Weather and Tides
Oroville, WA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:43AMSunset 5:40PM Friday October 30, 2020 9:16 AM PDT (16:16 UTC) Moonrise 5:44PMMoonset 6:31AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Oroville, WA
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location: 48.94, -119.44     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 301148 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 448 AM PDT Fri Oct 30 2020

SYNOPSIS. A cold front will bring gusty winds and chance for showers Friday. High pressure will return for the weekend into early next week for more periods of sunshine and mild temperatures. Breezy and unsettled weather returns the middle to end of the week. Changes could arrive by next weekend with the potential for another unseasonably cold air mass.

DISCUSSION. Today: Trough is moving onshore this morning and precipitation is beginning to spread across western WA. It should be to the Cascade crest by 4am and will move east through the morning hours. By the afternoon the best chance of precip will be across SE WA and the ID Panhandle. Precipitation amounts will be very light, just a couple hundredths at best for most places. Portions of the Waterville Plateau and Moses Lake region will be largely skipped. The crest of the Cascades and the northern ID mountains could see over a quarter of an inch at some locations. Snow levels will be high as the precip falls, which will keep the snow in the mountains with minimal impact to people. Once the precipitation stops snow levels will lower. Skies will clear through the afternoon as drier air moves into the region from the northwest.

Winds will increase through the morning hours and peak between noon and 4pm. Gusts 30 to 40 mph is expected, with some localized gusts to 45 mph. Potential impacts include choppy lakes and unsecured items blowing around. There is a low chance of blowing dust around recently harvested potato fields in Grant County.

Skies will be mostly clear this evening which will allow for temperatures to cool and fog to form across many valley locations.

Saturday: Saturday the ridge pumps back up across the region creating dry and stable conditions. Morning low clouds and fog will linger in the valleys, but by the afternoon partly cloudy to mostly clear skies is expected.

Sat evening temperatures in the upper 30s to 40s isn't too bad for anyone being out and about. Low temps will drop into the mid 20s to mid 30s with fog once again expected across many valleys. /Nisbet

Sunday through Friday: Another ridge of high pressure is expected to be over the Inland Northwest for Sunday leading to a uneventful day weather wise. Models have been very consistent on this scenario. Some early morning fog in the Northern Valleys is the only expected impact. By Monday, a Low will slide into to the Gulf of Alaska and the region will being to change to a zonal flow pattern. Monday is remain quiet but increasing upper level moisture is expected to being more clouds to the region. By early Tuesday, chance of showers have increased for the Cascades, the Northern Mountains, and North ID Panhandle. The zonal flow pattern is expected to last for the rest of the period as the Low is nearly stationary and the chance of showers dip further South toward the OR border. Snow levels will be in the 5500 ft plus range making it rain event for most locations. The main impact the models are beginning to show is potential for gusty winds on Wednesday. The 850MB winds are 35 to 45 kts across the Basin. The surface wind gusts could be in the 30 to 35 MPH range. Models are beginning to disagree with the winds on Thursday. The GFS And Canadian models are starting to indicate stronger winds than previous runs with potentially stronger gusts than Wednesday. Temperatures will be near normal for this time of year with highs in the upper 40s and low 50s. Lows will be in the upper 20s to 30s. Temperatures are expected to take significant dip for the weekend with highs potentially in the upper 20s and low 30s. /JDC

AVIATION. 12Z TAFS: A strong cold front is pushing over the Cascades and will move into E WA until ard 15Z. A low-level jet develops ahead of the cold front with a moderate threat for LLWS thru 19z or generally with the frontal passage. A few showers also expected to develop with the front. As winds surface behind the front gusts 25-35kts will remain possible through 00z. Isolated gusts closer to 40 kts will be possible in the mountains and Columbia Basin . with gusts to 50kts in the Cascades mtns. The mountains will be obscd at times through the morning. Clouds will thin and dissipate through the day with mostly clear skies overnight. Some stratus is expected to develop around PUW aft 08Z and may move up towards GEG/SFF aft 12Z.

PRELIMINARY POINT TEMPS/POPS. Spokane 55 27 49 28 53 31 / 60 0 0 0 0 0 Coeur d'Alene 52 28 47 28 54 32 / 60 0 0 0 0 0 Pullman 53 27 49 28 56 35 / 70 0 0 0 0 0 Lewiston 61 35 55 36 60 39 / 30 0 0 0 0 0 Colville 55 22 49 25 53 28 / 40 0 0 0 0 0 Sandpoint 49 29 44 28 51 32 / 70 0 0 0 0 0 Kellogg 51 32 47 31 58 37 / 70 10 0 0 0 0 Moses Lake 60 26 52 30 56 31 / 10 0 0 0 0 0 Wenatchee 57 35 52 36 54 37 / 20 0 0 0 0 0 Omak 55 30 50 32 51 33 / 20 0 0 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES. ID . Air Stagnation Advisory until 11 AM PDT this morning for Central Panhandle Mountains-Lewis and Southern Nez Perce Counties- Lewiston Area-Northern Panhandle.

WA . Air Stagnation Advisory until 11 AM PDT this morning for East Slopes Northern Cascades-Northeast Mountains-Okanogan Highlands-Okanogan Valley-Waterville Plateau-Wenatchee Area.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Omak Airport, WA33 mi23 minSSW 710.00 miFair42°F37°F85%1007.5 hPa

Link to 5 minute data for KOMK

Wind History from OMK (wind in knots)
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Last 24hrCalmCalmS33CalmCalmCalmCalmW7W7NW5NW4W5W4CalmCalmS5SE5SW4SE7N4CalmSW5S7
1 day agoCalmCalmCalmSE3S4SW4NW4W3W4W6NW4W4SW6W4CalmCalmCalmN3CalmN5CalmCalmCalmCalm
2 days agoNE3Calm3CalmCalmCalmCalmSE3CalmCalmW4CalmSW3W3NW3W4NW3W3NW4CalmCalmNW3--Calm

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
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.