Monday, October26, 2020
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Marine Weather and Tides
Somers, MT

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 8:11AMSunset 6:30PM Sunday October 25, 2020 11:08 PM MDT (05:08 UTC) Moonrise 3:50PMMoonset 12:41AM Illumination 70% Phase: Waxing Gibbous; Moon at 9 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 Somers, MT
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location: 48.06, -114.22     debug


Area Discussion for - Missoula, MT
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FXUS65 KMSO 252057 AFDMSO

Area Forecast Discussion National Weather Service Missoula MT 257 PM MDT Sun Oct 25 2020

DISCUSSION. The coldest air that we have ever seen this early in the season will continue to break records. Monday morning temperatures will be significantly below zero in much of western Montana with teens or colder in central Idaho.

Cloud cover is forecast to increase during Monday which will also keep high temperatures from warming. Enough moisture will enter the Northern Rockies that light snow is looking more likely Monday afternoon and into Monday night, but the snow amount forecast is very uncertain. It is not out the question for somewhere in west- central or northwest Montana to have many inches of fluffy snow. Lake Effect Snow develop today over Flathead Lake and conditions are again favorable to snow to develop during Monday morning. Accumulations around the lake could cause travel impacts.

Cloud cover Monday night should keep temperatures from being nearly as cold, but any clearing will allow temperatures to quickly drop.

Model guidance agree on a warming trend this week, but there are questions on how quickly the valleys will warm due to the amount of snow on the ground causing strengthened inversions. Speaking of inversions, stable conditions may cause air stagnation issues this week.

Increased moisture and weak disturbances may bring another round of snow on Wednesday with northwest Montana most likely to have snow.

AVIATION. VFR conditions will prevail across Montana and Idaho tonight leading to exceptional, record breaking cold on Monday morning. KBTM may experienced brief periods of reduced visibility due to shallow freezing fog. But impacts to prevailing conditions are expected to be brief as this type of fog tends to be quite transient. Moisture aloft will increase throughout the day on Monday which should lead to some light snow developing across much of Western Montana.

MSO WATCHES/WARNINGS/ADVISORIES. MT . None. ID . None.


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kalispell, Glacier Park International Airport, MT17 mi74 minWNW 410.00 miA Few Clouds7°F3°F87%1038.8 hPa

Link to 5 minute data for KGPI

Wind History from GPI (wind in knots)
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Last 24hrNE9N9N10N10N11N12N8N6N73SE5CalmCalmCalmS5S5S6S7S5CalmCalmCalmW4Calm
1 day agoN25
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2 days agoCalmCalmCalmNE4CalmCalmCalmCalmCalmCalmCalmE3CalmSE6SE5NE4N3CalmNE5NE4N5N13
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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 Missoula, MT
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weather_mapweather_map weather_map


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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 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.