Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Lakeside, 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 4:47 AM MDT (10:47 UTC) Moonrise 8:06AMMoonset 10:32PM Illumination 9% 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 Lakeside, MT
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location: 48.04, -114.22     debug


Area Discussion for - Missoula, MT
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Fxus65 kmso 301013
afdmso
area forecast discussion
national weather service missoula mt
413 am mdt Thu mar 30 2017

Discussion An upper level low pressure system moving on shore
over central oregon early this morning will dig south into nevada
by this afternoon. At the same time a mid-level circulation will
develop north of the main upper low, bringing with it an area of
heavier precipitation. And here in lies the main forecast
challenge over the next 24 hours.

Forecast models have been consistently inconsistent, so to speak,
for several days now with each model presenting varying realistic
solutions for where this mid-level circulation will develop. The
gfs and ECMWF are farther north and spread the heaviest
precipitation over all of lemhi county, but as far north as the
anaconda/butte/southern bitterroot areas of sw/sc montana. Yet
the NAM and canadian solutions maintain their insistence that this
precipitation will barely influence lemhi county and sw/sc
montana, instead falling across southern idaho (boise/pocatello
areas). Based on the latest satellite, radar and surface pressure
trends in central oregon (where the mid level circulation is
beginning to take shape) we're inclined to believe a more
northerly track. This maintains the previous forecast which has
the heaviest rain/snow falling throughout lemhi county and extending
north up to the far southern bitterroot valley & SW montana
(including butte and anaconda). This falls in line most with the
ecmwf analysis and continues to support the previously issued
winter weather advisory above 6500 feet, in effect until early
Friday morning.

Tonight cooler air will be brought into the northern rockies via
persistent easterly flow aloft. And steady drying throughout the
atmosphere will gradually end showers by Friday morning and the
sky start to clear in response to developing high pressure.

Seasonably cool, Friday and at least Saturday morning will be
quite nice throughout the northern rockies. But this will be short
lived as yet another weather system begins to spread clouds and
eventually precipitation into the region late Saturday and
Saturday night.

Next week a cold front will move through the region Sunday night
and Monday. Showers, some snow shower in the mountains, and gusty
winds are the only expected impacts from this system. There may be
some minor travel inconveniences due to rapidly changing
conditions. The worst conditions will likely be in southern lemhi
county, idaho as the main energy with this system is forecast to
move through the snake river basin and into central wyoming. This
will cause wrap around moisture and cooler temperatures in lemhi
county.

Tuesday and Wednesday a ridge builds over the region, causing some
very nice march weather. However the ridge will be shortlived and
when it breaks down will leave central idaho with moist, upslope
flow and rain showers.

Aviation Showers are likely to bring temporary visibility
reductions and occasionally lowered ceilings at kmso and kgpi.

However heavier, more persistent rain and even snow will impact
air field operations and weather conditions at kbtm and ksmn.

Gusty northerly winds (at least 20 knots) are anticipate this
evening as the precipitation comes to an end at these airfields
and though the region.

Mso watches/warnings/advisories
Mt... None.

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



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kalispell, Glacier Park International Airport, MT18 mi52 minS 710.00 miMostly Cloudy41°F39°F96%1009 hPa

Wind History from GPI (wind in knots)
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Last 24hrSE8S5SW43S4SE8S11SE9SE9S11SE13S8S8S7S4SW3SW7SW7S7SW6S6SW6W4S7
1 day agoSW6SW4SW4S3CalmS9S11S8SW10SE10SE11SE12
G17
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2 days agoCalmCalmCalmCalmCalmCalmS4S7S11SE11
G18
SE10SE9SE13SE11SE10SE9S9SW5S6S7S6S3N4S3

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 (6,6,7,8)
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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.