Friday, October20, 2017 L-36.com


Marine Weather and Tides
Polson, MT

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 8:04AMSunset 6:39PM Friday October 20, 2017 10:18 AM MDT (16:18 UTC) Moonrise 7:46AMMoonset 6:34PM Illumination 0% Phase: New Moon; Moon at 0 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 Polson, MT
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location: 47.7, -114.16     debug


Area Discussion for - Missoula, MT
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Fxus65 kmso 200915
afdmso
area forecast discussion
national weather service missoula mt
315 am mdt Fri oct 20 2017

Discussion Widespread precipitation in eastern oregon and
washington is slowly moving westward toward the northern rockies.

This rain will move into northwest montana and west central idaho
in the next few hours and into much of west central montana by mid
to late morning. Snow levels are starting off pretty high but
will lower as the front moves through today. Gusty westerly winds
also develop as the front moves through today. Heavy rain may
have impacts such as mudslides to areas in central idaho.

The tricky part of the forecast today will be potential impacts
from snow. Snow levels will lower throughout today from west to
east. It's looking like by the time snow levels lower to mountain
pass levels the heaviest precipitation will have ended which will
limit the amount of snow accumulations. A quarter to one half
inch of rain is expected below snow levels.

A more significant jet stream will move over the region late
Saturday through Monday. The timing of the weekend weather system
from computer model runs has been pretty consistent for rain and
stronger wind to develop first in idaho late Saturday afternoon,
then spread farther east by Sunday morning. Snow levels will be
somewhat higher around 6000 feet this weekend with rain amounts in
the terrain below this level in the 1 to 3 inch range resulting
in local mud and rock slides. The winds in the higher terrain
will also increases the chance of falling trees in recent burn
areas. After Monday it looks generally drier, though a weather
system midweek moving into the plains may brush northwest montana.

Models are starting to show signs of a cold arctic system by late
next week but there is quite a bit of uncertainty especially since
it is 7 days out.

Aviation A cold front will bring a west to east progression of
lower ceilings and reduced visibilities associated with rain and
mountain snow above 5,000 feet. Wind shift from southerly to more
northerly is expected with the front.

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, MT42 mi23 minSW 68.00 miLight Rain46°F39°F77%997.3 hPa

Wind History from GPI (wind in knots)
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Last 24hrSW7SW5S7
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3NE4NE4CalmCalmCalmW4CalmCalmSW6SE4SE4S33W5W7S4SW6
1 day agoCalmS4S7S9S7S5SE5S9S8S11S9S13S9S7S6SW7SW6S6S7S8S9S9--W4
2 days agoSW5S14S14
G21
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64CalmCalmS3NE3CalmCalmCalmW5CalmCalm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

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

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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 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.