Monday, February19, 2018 L-36.com


Marine Weather and Tides
Somers, 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 7:33AMSunset 6:08PM Monday February 19, 2018 12:52 PM MST (19:52 UTC) Moonrise 9:35AMMoonset 10:24PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Somers, MT
   Hourly   EDIT   Help
location: 48.06, -114.22     debug


Area Discussion for - Missoula, MT
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 kmso 191102
afdmso
area forecast discussion
national weather service missoula mt
402 am mst Mon feb 19 2018

Discussion Wind chills continue to be an issue across western
montana this morning as a fairly tight pressure gradient produces
gusty easterly winds. Western montana has or will see wind chill
readings from -5 to -25 this morning with the coldest occurring
near the continental divide from helmville down to anaconda. The
pressure gradient appears to relax this afternoon allowing the
easterly winds to subside and along with gradual warming
temperatures today, the threat of dangerous wind chills should
diminish be late morning early afternoon.

A subtle disturbance is currently causing light snow around the
pullman area of washington this morning. This weak feature should
drift to the southeast throughout the morning and produce
additional accumulating snow over the orofino pierce area down to
grangeville and whitebird grade. Thus winter weather advisories
remain in affect through this morning with the snow gradually
dissipating throughout the afternoon hours.

The northern rockies remain under a cold northwesterly flow
tonight into Tuesday. Some clearing is anticipated for tonight
which should allow temperatures to drop dramatically, potentially
to the coldest readings this season for a few location.

Temperatures are expected to be below zero for most of western
montana and in the single digits for north central idaho. Another
subtle disturbance will drift through the northwesterly flow on
Tuesday and Tuesday night which could cause some light snow
showers throughout the region.

From midweek onward the forecast can be summarized with the
following: continued cold with ever so gradual warming &
occasional light snow. Overall weather models all agree that the
upper level flow pattern will remain very stable over the next 7
to 10 days. The resultant continental wide (spanning coast to
coast) long wave trough of low pressure will place the northern
rockies under northerly to northwesterly flow most of the time.

Periodic weak weather features are likely to glide south from
canada and produce occasional light snow or snow flurries. But
there will also be periods of clearing in between these
disturbances and if these happen to occur over night then
temperatures could quickly fall. Both the ECMWF and GFS briefly
develop westerly flow across the area next weekend which could
interject some additional pacific moisture into an already very
cold air mass. This appears to be our next best chance for
snowfall and perhaps a weak reinforcing shot of cold air. But
confidence is rather low regarding how much snow we could possibly
see or if that reinforcing shot of cold air could happen.

Aviation Breezy easterly winds remain over the northern rockies
through this morning causing localized blowing snow and very cold
wind chills. Also a subtle disturbance will drift into north
central idaho causing light snow near kgic this morning. Both the
wind and shower activity is anticipated to diminish this
afternoon.

Mso watches warnings advisories
Mt... Wind chill advisory until 1 pm mst this afternoon
bitterroot sapphire mountains... Butte blackfoot region...

potomac seeley lake region.

Wind chill advisory until 1 pm mst this afternoon
missoula bitterroot valleys.

Wind chill advisory until 1 pm mst this afternoon lower clark
fork region.

Wind chill advisory until 1 pm mst this afternoon
flathead mission valleys.

Wind chill advisory until 1 pm mst this afternoon west glacier
region.

Wind chill advisory until 1 pm mst this afternoon
kootenai cabinet region.

Id... Winter weather advisory until 1 pm mst this afternoon eastern
lemhi county... Western lemhi county.

Winter weather advisory until noon pst today lower hells
canyon salmon river region... Orofino grangeville region.

Winter weather advisory until noon pst today northern clearwater
mountains... Southern clearwater mountains.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kalispell, Glacier Park International Airport, MT17 mi58 minNE 1010.00 miMostly Cloudy9°F-6°F50%1022.1 hPa

Wind History from GPI (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hrNE21NE20
G32
NE24
G32
NE20NE17NE21
G25
NE18NE17NE19NE20
G25
NE16
G24
NE13NE11N15
G22
NE12NE7NE9NE11N8NE8NE12N9E5NE10
1 day agoNE7NE6NE4----N10NE24NE25
G32
N30
G35
N31
G41
N27
G36
N27
G35
N25
G33
N24
G31
N29
G36
N25
G34
NE23
G34
NE26
G34
NE18
G27
NE17NE16NE16
G24
NE26
G33
NE21
G29
2 days agoS11S10S8S8SE6S6CalmS6SW3CalmCalmCalmCalmN4W3CalmCalmCalmCalmCalmCalmN4N3NE4

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Missoula, MT (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Missoula, MT
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.