Tuesday, May30, 2017 L-36.com


Marine Weather and Tides
Polson, MT

Version 3.4
What's New / NOTES
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 5:39AMSunset 9:30PM Tuesday May 30, 2017 3:15 AM MDT (09:15 UTC) Moonrise 10:12AMMoonset 12:10AM Illumination 23% 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 292024
afdmso
area forecast discussion
national weather service missoula mt
224 pm mdt Mon may 29 2017

Discussion
Low and mid level moisture will remain somewhat in abundance
throughout the northern rockies into Tuesday. Today this has
resulted in the development of scattered showers and thunderstorms,
most of which appear to be closely linked to the higher terrain
and are falling apart once they leave the mountains. These cells
should die off late this evening with the loss of daytime heating.

Another round of showers thunderstorms are likely tomorrow when
continued high moisture coupled with abundant sunshine and an
atmosphere supporting high temperatures well into the 70s and 80s
support more convection. Speaking of temperatures, it looks like
most valleys should achieve highs into the 80s with some location
(like missoula and along the clark fork river) getting into the
upper 80s. Meanwhile in idaho a few lower elevation locations near
hells canyon will likely eclipse 90. So be sure to stay cool and
hydrated.

High pressure is on track to transition to the east on Wednesday,
thus leaving north-central idaho and western montana under
southwesterly flow aloft. High temperatures are forecast to be a
little cooler in idaho on Wednesday, while most of western
montana will have their warmest day of the week. Model guidance
are showing thunderstorms to develop on Wednesday during peak
heating of the late afternoon. Multiple shortwaves and the
approaching cold front will keep shower and thunderstorm chances
throughout Wednesday night. The cold front should push through the
region during Thursday, providing additional shower and
thunderstorm activity, breezy winds, and temperatures much closer
to normal. Some of the thunderstorms late Wednesday and Thursday
could be strong and produce gusty winds and hail. Showers chances
linger into Friday.

Extended model guidance are trending toward a weak ridge for the
first half of the weekend, followed by a trough for the end of
the weekend and into early next week. So, warmer with limited
precipitation chances may transition into a much cooler and wet
weather system by next Monday.

Aviation Cumulus growth off the terrain will result in
scattered showers and thunderstorms along the continental divide
into southwest montana (affecting kbtm), as well as across
northwest montana (affecting kgpi). Both of these terminals will
have the chance of seeing gusty outflow winds from slow-moving
storms through 30 0200z. Lightning, small hail, and or brief rain
will also be a possibility. Kmso and ksmn will not see as much
activity, but the threat for an isolated shower or storm will
exist through 30 0200z. Thereafter, much more stable conditions
with clearing skies will occur across the entire northern rockies.

Expect another warm and stable day on Tuesday with lesser chances
for rain.

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 mi21 minNW 410.00 miFair52°F46°F83%1015.9 hPa

Wind History from GPI (wind in knots)
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Last 24hrS3N4N3CalmN8NE9NE10NE6E3SE4CalmN4W53NE11NW5NE10N6N7NW33NW4NW4NW4
1 day agoCalmCalmCalmCalmN5NE12NE93Calm3SE3SE4NE4W3W5CalmNE8CalmN4NW3NW4CalmCalmW3
2 days agoNW3CalmCalmCalmN3NE6NE4CalmS5446SE9S7S9S10S9SE7S7W4NE6CalmNW3N3

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 (5,6,7,8)
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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.