Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 6:41AM||Sunset 8:38PM||Friday August 23, 2019 12:37 AM MDT (06:37 UTC)||Moonrise 11:30PM||Moonset 1:58PM||Illumination 48%|
7 Day Forecast for Marine Location Near Somers, MTHourly EDIT Help
Area Discussion for - Missoula, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 kmso 222036|
area forecast discussion
national weather service missoula mt
236 pm mdt Thu aug 22 2019
Widespread showers today will ease this evening as an upper
level trough continues to make its way east into central montana
and northern wyoming. Most of the northern rockies will dry out by
about 9pm, however a closed low separates from the main trough
over the northwest corner of wyoming early Friday morning. This
feature will transport moisture over the east side of the
continental divide and could bring continued rain showers to
southwest montana until as long as 6am on Friday before departing
to the east. Patchy fog may form on Friday morning in areas that
received rain today and experience clearing skies overnight.
In the wake of today’s trough, zonal flow sets up and brings
pleasant weather on Friday with temperatures near average. That
said, a strong jet stream aloft noses its way into western montana
and north central idaho around noon on Saturday. This will create
breezy conditions on Saturday and Sunday afternoon under mostly
clear skies and seasonal temperatures. Expect choppy conditions on
large lakes such as flathead over the weekend.
Enjoy next week as it looks to be a fantastic period of dry|
weather and seasonable temperatures. The week will start off under
a cool and dry northwesterly flow with temps in the mid and upper
70s. A ridge of high pressure will build over the northern rockies
midweek through the early part of labor day weekend resulting in
continued dry weather with near normal temperatures in the mid
The possibility of rain showers will continue until about 23 1200z
at ksmn and kbtm while precip ceases at kgpi and kmso by 23 0300z.
These showers will bring heavy rain and decrease visibility to ifr
for short periods of time. Fog could form in the vicinity of kmso
and or kgpi Friday morning as dew point depressions drop to 1-2
degrees at 23 0600z with calm winds and plenty of moisture from
today’s rains. Model guidance is leaving skies overcast until
about 23 1500z, so keeping fog out of tafs for now. If clearing
takes place earlier than expected, fog will become more probable.
Mso watches warnings advisories
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Kalispell, Glacier Park International Airport, MT||17 mi||1.7 hrs||N 0||2.50 mi||Fog/Mist||56°F||55°F||97%||1014.9 hPa|
Link to 5 minute data for KGPI
Wind History from GPI (wind in knots)
|1 day ago||Calm||N||Calm||NW||W||W||W||Calm||NE||NE||NE||Calm||E||S||S||S||S||SW||NW||NW||W||W|
|2 days ago||Calm||W||N||NW||NW||NW||N||NE|
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Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of PacificNorthwest EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Missoula, MT (2,6,7,8)(on/off)  Help
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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.