Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Somers, MT

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:15AMSunset 8:07PM Thursday March 30, 2017 6:26 PM MDT (00:26 UTC) Moonrise 8:06AMMoonset 10:32PM Illumination 13% Phase: Waxing Crescent; Moon at 3 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 302042
afdmso
area forecast discussion
national weather service missoula mt
242 pm mdt Thu mar 30 2017

Discussion A low pressure system continues to dig south this
afternoon through nevada with moisture circulating around this
feature into central idaho. A developing mid level circulation is
expected to interact with this moisture as it moves through north
central idaho this afternoon/evening and into southwest montana
overnight. Precipitation associated with this disturbance is
expected to bring accumulating snow to elevations roughly above
6000 feet. Roads may become slushy and slick at times through
early Friday morning, particularly for high elevation passes such
as lost trail, homestake, and macdonald. Further north across
west central and northwest montana, most locations will remain dry
with a few showers, generally over the higher terrain.

Drier air will filter into the region tomorrow morning as high
pressure builds into western montana and central idaho. This
should bring any lingering precipitation to an end by late
morning. Fairly pleasant conditions will dominate come afternoon
as clearing skies allow for some sunshine.

A ridge of high pressure builds over the northern rockies during
the early morning on Saturday, giving fog an opportunity to form.

Fog should stay patchy in nature and be short-lived, as westerly
flow develops during the late morning and Sun helps mix valley
boundary layers.

Models have changed significantly over the past 24 hours with the
depiction of weather for late weekend into early next work week.

Instead of a deep, digging trough of low pressure, models bring a
shortwave through on Saturday, then keep moist northwest flow over
the area through much of Monday. Relatively cool temperatures
with showers and snow levels down to 4000 feet characterize this
period.

By Tuesday, the flow dries out, and a ridge of high pressure
builds over the area. Thursday looks very mild, and could be one
of the warmest days yet this year, as southwest flow develops
ahead of a cold front that moves through Friday. Stay tuned as
this period of the forecast has been very changeable, and thus
confidence is low at this point.

Aviation As a mid level circulation moves through central idaho
this afternoon and evening, more widespread precipitation is
expected to develop, generally south of a line from kgic to k6s5
to khln. Ksmn and kbtm will likely see periods of persistent
precipitation, leading to low ceilings and visibility at times
through early Friday morning. Further north near kmso, a few
showers will be possible, but impacts to visibility and ceiling
should be short-lived. Widespread obscurations of the higher
terrain will prevail through central idaho and western montana
into Friday morning due to a persistent mid level cloud deck. A
north to northeasterly wind is anticipated to develop later this
afternoon, and may persist through much of the night. Most
locations will feel this breeze up to 10 kts; however, ksmn and
kbtm may have gusts up to 20 kts at times.

Mso watches/warnings/advisories
Mt... Winter weather advisory from midnight tonight to 9 am mdt Friday
above 6000 feet for the butte/blackfoot region.

Id... Winter weather advisory until 9 am mdt Friday above 6500 feet
for the lemhi county.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kalispell, Glacier Park International Airport, MT17 mi31 minVar 410.00 miFair51°F30°F46%1013.4 hPa

Wind History from GPI (wind in knots)
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Last 24hrS4SW3SW7SW7S7SW6S6SW6W4S73N3NW3N3CalmSW3E3NE4N12
G17
N64N744
1 day agoSW8SW6S6SW10S7S4SE6S7S6S6SE8S5SW43S4SE8S11SE9SE9S11SE13S8S8S7
2 days agoSE10SE9S9SW5S6S7S6S3N4S3SW6SW4SW4S3CalmS9S11S8SW10SE10SE11SE12
G17
S12SW10

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 (20,4,5,8)
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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.