Thursday, November23, 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 7:56AMSunset 4:52PM Thursday November 23, 2017 8:59 PM MST (03:59 UTC) Moonrise 11:58AMMoonset 9:23PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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 232137
afdmso
area forecast discussion
national weather service missoula mt
237 pm mst Thu nov 23 2017

Discussion Strong westerly winds from a passing cold front
are starting to materialize in northwest montana and will continue
to spread across the rest of the northern rockies through the
evening hours. Winds will likely be their strongest as the actual
cold front moves through the region between 6 and 9 pm north to
south. Some mountain wave winds may occur and impact the
bitterroot valley this evening with brief gusts of up to 45 mph
which could cause some local tree damage or brief power outages.

If the strongest winds persist for a while then a high wind
warning may be warranted.

Another potential impact with this cold front will be the
lowering snow levels. Area passes, such as lolo, lost trail,
macdonald, and homestake passes could see a brief period of
moderate to heavy snow this evening and overnight. The main
impact will likely be reduced visibility. Due to warm road
temperatures if snow accumulates it should melt relatively
quickly.

Snow levels will lower to around 3500 feet behind the front.

Scattered snow showers with little accumulations are expected
Friday morning. Dry conditions with an increase in Sun will occur
Friday afternoon under a building weak ridge. This ridge will
likely persist through Saturday night. Probably the biggest
potential impact for commuters and holiday travelers this weekend
will be the increasing potential for fog with very low visibility
Saturday morning and possibly Saturday night.

Another strong cold front is anticipated to swing through the
northern rockies late Sunday into Sunday night. Ahead of the front
southerly winds will develop causing temperatures to potentially
warm to above normal readings. The models waver slightly on the
timing of the front, but anticipate a burst of precipitation along
the front. Gusty westerly winds could be a concern once again
along and behind the front. Snow levels will be relatively high so
any impactful snow will be limited to the higher terrain and
potential mountain passes.

The models diverge some for the first part of next week, but
temperatures should be near seasonal with lingering shower
activity.

Aviation Mild conditions across the area but with strong
westerly flow associated with an approaching cold front. Areas of
mountain obscuration will continue through tonight... Along with
the turbulence associated with the windy and well mixed
conditions. Expect less fog for Friday morning than on recent
mornings.

Mso watches warnings advisories
Mt... Wind advisory from 5 pm this afternoon to 5 am mst Friday
bitterroot sapphire mountains... Butte blackfoot region...

missoula bitterroot valleys... Potomac seeley lake region.

Wind advisory until 11 pm mst this evening flathead mission
valleys... West glacier region.

Id... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kalispell, Glacier Park International Airport, MT42 mi65 minSSW 910.00 miOvercast48°F46°F93%1001.3 hPa

Wind History from GPI (wind in knots)
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Last 24hrS9SW5SW4W4SW6S7S7S10S8S12S8S7SE10SW13SW14S11SW15S13S11S8SW10SE6S5S9
1 day agoSW6SW8SW5W5CalmSW3S3CalmCalmSW4CalmCalmCalmCalmSW5S6SW5SW3W3S5SW6SW7S10S9
2 days agoS7CalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmS3W4SW3SW3SW4CalmSW3W3Calm

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 (22,6,7,8)
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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.