Friday, October23, 2020
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Marine Weather and Tides
Dover, ID

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 7:17AMSunset 5:45PM Friday October 23, 2020 8:36 PM PDT (03:36 UTC) Moonrise 3:01PMMoonset 11:42PM Illumination 48% Phase: First Quarter Moon; Moon at 7 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 Dover, ID
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location: 48.27, -116.6     debug


Area Discussion for - Spokane, WA
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FXUS66 KOTX 232226 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 326 PM PDT Fri Oct 23 2020

SYNOPSIS. The early season snowstorm will wind down this evening. Cold wind will develop overnight and continue on Saturday with the arrival of unseasonably cold air. Low temperatures in the teens will be common Saturday night and Sunday night potentially breaking records. Temperatures begin to rebound Tuesday as a high pressure starts to move into the area.

DISCUSSION. Tonight: Early season winter storm is making its impact in some areas of the Inland NW, mainly from the Methow Valley to the Silver Valley, including Republic, Colville and the Spokane metro area. Snowfall intensity has been hard enough to overcome the melting road temperatures, but areas with light snow have generally just had wet roads. After 5pm, the heaviest snow should shift into the Palouse and southern Panhandle where it will continue until midnight before changing to showers. Temperatures are warmer there which would mitigate snow accumulation. But road temperatures will likely cool with the setting sun which could allow for more road accumulation.

Cold northeast winds will develop behind the snow later tonight. For the roads this will be a dicey competition between evaporation and freezing. The post-storm winds will be rather dry and should evaporate much of the moisture on the roads. But can all of the moisture evaporate before it freezes? Suffice to say there could be some icy roads for Saturday morning. RJ

Saturday through Friday: The last of the snowfall will exit the ID Panhandle through Shoshone County in the early Saturday morning hours. Saturday will be quite windy with north winds and gusts up to 25-35 mph through the Okanogan Valley and a majority of the Columbia Basin. Areas in the Northern ID Panhandle such as the Purcell Trench may see gusts up to 40 mph. Strong wind gusts will result in wind chills in the teens to single digits. Hypothermia will be a significant concern over the next few days if outside without proper protection. Blowing snow may be a potential hazard for the Northern ID Panhandle on Saturday, but snow may be a bit too heavy for the winds to pick it up off the ground.

As the upper level low continues to move southeast out of the area, an upper level ridge builds offshore putting the Pacific Northwest in a northerly to northwesterly dominated flow. This allows for a cold, dry, Arctic airmass to push into the region. Extremely cold temperatures in the teens and single digits are expected for much of the region, with a good possibility for breaking record lows and record low highs. The low temperature Sunday morning in Spokane is currently forecasted to be 11 degrees, which would beat the record of 12 degrees that was set in 1919. Monday looks to be around the same, but the current record is 19 set in 1978. We will also likely see record cold high temperatures with most of the area forecasted to reach only the low to mid 30s on Sunday and Monday. Winds will be lighter on Sunday through the end of the work week, as the offshore high pressure begins to push inland. These conditions hint at a possible air stagnation event beginning Sunday. Any burning under these conditions would impact air quality.

Temperatures begin to rebound on Tuesday as the offshore ridge begins to push further inland. There are a decent amount of discrepancies between models and their ensembles on the duration and breakdown of the ridge. Some models have it out of the region by Wednesday, and others have it through the end of the work week. A longer duration ridge would keep the air stagnation pattern in place, but a flatter ridge pattern would allow for a wetter pattern. Regardless of the solution that pans out, temperatures for the latter half of the week will be significantly warmer than what is expected on Sunday and Monday with highs in the mid 40s to mid 50s and lows in the mid 20s to mid 30s. VMT

AVIATION. 00Z TAFs: Snow will wind down tonight as the winter storm exits to the region. IFR conditions north of highway US-2 should improve this evening as snow comes to an end. IFR cigs in the Spokane metro area will take longer to lift, closer to around 10Z. The Palouse along with the central/southern Panhandle will be the last to improve with some areas of IFR lingering into Saturday morning. Gusty north/northeast winds will develop behind the storm system and continuing all day Saturday. RJ

PRELIMINARY POINT TEMPS/POPS. Spokane 21 33 11 32 13 34 / 100 0 0 0 0 0 Coeur d'Alene 20 33 11 31 14 34 / 100 0 0 0 0 0 Pullman 23 33 9 30 11 34 / 100 20 0 0 0 0 Lewiston 31 39 19 35 19 39 / 100 30 0 0 0 0 Colville 21 38 7 36 12 36 / 90 10 0 0 0 0 Sandpoint 21 32 11 32 14 33 / 100 10 0 0 0 0 Kellogg 18 29 9 29 14 33 / 100 20 0 0 0 0 Moses Lake 29 42 18 38 17 39 / 70 0 0 0 0 0 Wenatchee 29 41 21 37 23 40 / 80 10 0 0 0 0 Omak 24 39 16 38 20 38 / 90 0 0 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES. ID . Winter Storm Warning until 5 AM PDT Saturday for the palouse along and east of highway 195 for Idaho Palouse.

Winter Storm Warning until 5 AM PDT Saturday above 2000 feet for Coeur d'Alene Area.

Winter Storm Warning until 5 AM PDT Saturday for Central Panhandle Mountains-Northern Panhandle.

Winter Weather Advisory from 11 PM this evening to 11 AM PDT Saturday for the higher elevations of the camas prairie for Lewis and Southern Nez Perce Counties.

WA . Winter Storm Warning until 11 PM PDT this evening for Northeast Mountains-Okanogan Highlands-Okanogan Valley.

Winter Storm Warning until 5 AM PDT Saturday for the palouse along and east of highway 195 for Washington Palouse.

Winter Weather Advisory until 11 PM PDT this evening for the highway 2 corridor across the upper columbia basin for Upper Columbia Basin.

Winter Storm Warning until 5 AM PDT Saturday above 2000 feet for Spokane Area.

Winter Storm Warning until 1 AM PDT Saturday for East Slopes Northern Cascades.

Winter Weather Advisory until 11 PM PDT this evening for the higher elevations around wenatchee and chelan for Wenatchee Area.

Winter Weather Advisory until 11 PM PDT this evening for Waterville Plateau.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sandpoint, Sandpoint Airport, ID3 mi42 minNNE 710.00 miLight Snow32°F32°F100%1011.8 hPa

Link to 5 minute data for KSZT

Wind History from SZT (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmN3NE4NE3NE3NE3NE4N3NE3NE3NE3NE5NE8NE7NE8NE8
1 day agoN6NE5NE5NE8NE9N6NE7NE8NE6NE7N7NE8NE8NE8NE10E3CalmCalmE4CalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmW3CalmS3CalmSW6SW5S7S6SW6CalmSW6S7CalmCalmN10
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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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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
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.