Thursday, February20, 2020
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Marine Weather and Tides
Somers, MT

Version 3.4
NOTICE
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 7:33AMSunset 6:08PM Thursday February 20, 2020 10:09 AM MST (17:09 UTC) Moonrise 6:24AMMoonset 3:04PM Illumination 10% Phase: Waning Crescent; Moon at 27 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 201022 AFDMSO

Area Forecast Discussion National Weather Service Missoula MT 322 AM MST Thu Feb 20 2020

DISCUSSION. High pressure will remain firmly in place today and tonight. With clear skies and snowcover in many valleys, mornings will be quite cold. Single digits to low teens are fairly widespread across western Montana valleys, with below zero temperatures through the Seeley, Swan, Butte and Salmon valleys. Central Idaho valleys will not be quite as cold, though still expected to see temperatures in the teens to low 20s. Otherwise, generally clear skies will bring another bluebird day.

A weak wave of energy will pass through the high pressure ridge on Friday, beginning to weaken it slightly. The main result will be some increased cloud cover. Some valleys will see inversions mix out, allowing for a warming trend in afternoon temperatures. Other valleys, such as Salmon and possibly Missoula, may have more difficulty mixing out, which may keep temperatures cooler than currently indicated in the forecast. By Saturday, the upper level flow flattens further, leading to some increasing winds at ridge top levels. This should help further weaken valley inversions.

Forecast models continue to indicate a change in the weather pattern for Sunday into Monday as a cold front passes through the region. Snowfall will return to the region, with a period of moderate snow expected over mountain passes. Valleys will likely see a period of snowfall as well by Monday morning, which could cause some slick travel for the Monday morning commute.

AVIATION. High pressure remains firmly in place over western Montana and central Idaho this morning. The very dry airmass associated with this high pressure ridge has largely limited fog and low stratus development. Some patchy areas of fog are still possible in valley bottoms, but are not expected to cause prolonged impacts for area terminals. Otherwise, light winds and clear skies will dominate into tonight.


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 minN 510.00 miFair18°F10°F71%1035.1 hPa

Link to 5 minute data for KGPI

Wind History from GPI (wind in knots)
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Last 24hrNE5NE4NE53SE6S7S6S3CalmCalmCalmW3NW3NW3W5CalmNW3W4CalmW4NW3N4N5E7
1 day agoSE3343W10W5SW5SE6CalmCalmCalmCalmNW3CalmW4CalmW4NW3CalmW3NW3CalmN3NE7
2 days agoS4E3CalmNW7
G14
W83E6N3S3S8SE7S5S6S9S10SW6S5CalmCalmCalmCalm--CalmCalm

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
Wind Forecast for Missoula, MT (12,3,4,5)
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Ground Weather Radar Station Missoula, MT
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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.