Sunday, December8, 2019
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Marine Weather and Tides
Moscow, ID

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 7:17AMSunset 4:01PM Sunday December 8, 2019 6:09 AM PST (14:09 UTC) Moonrise 3:25PMMoonset 4:18AM Illumination 88% Phase: Waxing Gibbous; Moon at 12 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 Moscow, ID
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Area Discussion for - Spokane, WA
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FXUS66 KOTX 081147 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 347 AM PST Sun Dec 8 2019

SYNOPSIS. An exiting storm system will bring lingering valley rain and mountain snow showers to the Idaho Panhandle today with lots of low clouds and patchy fog in the Columbia Basin. Drier weather is expected Monday and Tuesday followed by chances for rain and mountain snow Wednesday and the end of the week.

DISCUSSION. Today through Monday night . An upper level trough axis running form north Idaho to California early this morning will move east today allowing dry northerly flow over the forecasts area in it's wake as an sharp upper level ridge builds along the northwest coast today. As the trough exits some lingering showers orographically driving into the Idaho panhandle will persist through the morning and taper off during the afternoon. The Winter Weather Advisory for the Shoshone County mountains will likely be allowed to expire at 10 AM this morning as showers wind down.

While dry northerly flow aloft begins today over the rest of the region . the very moist low level boundary layer will manifest itself as widespread low clouds and patchy fog until appreciable low level air can filter through the northern gaps and erode the stratus. The Okanogan Valley will be the main conduit for this invasion and so the western basin will see the most noticeable improvement this morning with a slow erosion of low clouds form west to east during the afternoon. High temperatures today will be impacted by this stratus field . still above average for this time of year but an uncomfortably damp above average.

For tonight through Monday night patchy fog and fields of low clouds will slosh around the basin and valleys as the building ridge aloft stabilizes the air mass and promotes an inversion scenario which may lead to some air quality deterioration over the next few days. No storm systems or precipitation chances are expected through the beginning of the week. /Fugazzi

Tuesday through Saturday: Ridge remains over the Pac NW Tuesday for a dry forecast. A weather disturbance moves into the ridge Tuesday night and exits Wednesday. This will provide some brief precipitation to the Cascades and extreme eastern WA and the ID Panhandle with precip decreasing through the day. Wednesday night the ridge will begin to flatten and a low in the Gulf of Alaska will begin to send numerous disturbances/pieces of energy into the Pac NW. Current models/ensembles suggest the the best chance of precip will be Wed night-Thur night, but the weekend will still remain unsettled. Have increased the winds for Thur through Fri morning across portions of SE WA as a strong jet moves into OR and southern WA. Temperatures will be several degrees above average for this time of the year. Highs in the mid 30s to low 40s and lows in the mid 20s to mid 30s is expected. Temps and time of day of precip will have a large impact on whether valleys will pick up some snow or not. The mountains should see all snow. Even if we do get snow Wed night, Thursday will be our warmest day of the week and all the snow will likely melt, or snow will turn to rain making a slushy situation. Unfortunately (fortunately, depending on how you look at it) temps remain pretty warm through Friday for most valleys to see temps warm enough for some valley rain in the afternoon. It isn't until Saturday that most valleys have a decent shot of seeing precip mostly in the form of snow. (except the deep Columbia Basin and Palouse/LC Valley where it will still be rain). /Nisbet

AVIATION. 12Z TAFS: A moist boundary layer as a result of recent rain will promote widespread MVFR and local IFR conditions through the morning hours. A push of dry air is moving out of Canada through northern valleys this morning and will probably bring improving conditions to the KEAT . KMWH . KGEG . KSFF and KCOE TAf sites between 18Z and 21Z today . while the KPUW TAF site will be subject to deterioration as moist upslope flow promotes continued IFR and LIFR conditions until later in the afternoon when slow improvement to MVFR conditions is expected. Tonight the gradient will weaken and shift to the southeast which should allow improvement to the KPUW and KLWS TAF sites to VFR conditions but promote deterioration once again to the KEAT . KMWH . KGEG and KSFF/KCOE TAF sites after 06Z tonight. /MJF

PRELIMINARY POINT TEMPS/POPS. Spokane 38 26 36 29 38 30 / 0 0 0 0 0 20 Coeur d'Alene 38 28 37 30 39 32 / 10 0 0 0 0 20 Pullman 39 30 40 29 41 31 / 40 10 0 0 0 10 Lewiston 44 32 43 32 44 35 / 50 0 0 0 0 10 Colville 40 22 37 23 37 27 / 0 0 0 0 0 10 Sandpoint 38 28 35 29 37 32 / 10 0 0 0 0 30 Kellogg 37 28 37 31 39 33 / 50 10 10 0 0 30 Moses Lake 41 26 39 27 38 27 / 0 0 0 0 0 10 Wenatchee 41 28 38 28 36 29 / 0 0 0 0 10 10 Omak 40 26 37 26 35 29 / 0 0 0 0 0 10

OTX WATCHES/WARNINGS/ADVISORIES. ID . Winter Weather Advisory until 10 AM PST this morning above 4000 feet for Central Panhandle Mountains.

WA . None.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pullman / Moscow Regional Airport, WA7 mi77 minW 80.25 miFog36°F35°F97%1011.3 hPa
Lewiston, Lewiston-Nez Perce County Airport, ID24 mi74 minWNW 810.00 miOvercast42°F37°F82%1010.7 hPa

Link to 5 minute data for KPUW

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Last 24hrE8E9E7E9E9S13S11S10S9S4E8E7E8E7E5NE6E3SE3CalmW7W7W9W8W9
1 day agoE14E11SE11E11E9SE11E10E8SE10E8E10SE5E8E7E7E8E7E10E10E6E8E7E9E12
2 days agoSE8E6SE5SE7SE5SE6SE6SE9SE8SE7SE4SE7E5E9SE8SE15SE10E9E10E12E9E9SE9E10

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 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.