Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Bigfork, MT

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:19AMSunset 7:41PM Wednesday September 19, 2018 2:49 PM MDT (20:49 UTC) Moonrise 4:23PMMoonset 12:38AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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 Bigfork, MT
   Hourly   EDIT   Help
location: 48.06, -114     debug


Area Discussion for - Missoula, MT
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 kmso 192025
afdmso
area forecast discussion
national weather service missoula mt
225 pm mdt Wed sep 19 2018

Discussion Visible satellite imagery depicts a widespread area
of low clouds, or what is otherwise known as "stratus", over
central montana extending westward over the continental divide up
to the sapphire mountains. The Sun is out west of this boundary,
and temperatures have warmed into the 60s. Butte has felt the
chilling effect of the low clouds and has barely warmed above 50
degrees as of 2 pm. We do expect the late september Sun to help
break up the clouds in some of these areas this afternoon. North
to east breezes will continue tonight over western montana.

An upper level wave, seen over eastern oregon in the water vapor
imagery, is expected to traverse eastward over the northern
rockies into tonight. It will initiate showers, especially near
the idaho and montana border south of noxon, and also across
southwest montana. In fact, the stalled frontal boundary draped
over the area could actually help to enhance shower intensity and
frequency in these areas. Current convective analysis would
suggest that there could be enough instability over the southern
bitterroot and sapphire mountains for an isolated thunderstorm
through this evening. The main impact would be lightning and gusty
winds.

On Thursday, another wave will bring numerous showers across
northwest montana. The areas that will see drier conditions will
be south of the i-90 corridor. Confidence is low, but there could
be an embedded thunderstorm with the showers. High temperatures
will generally be 5 to 7 degrees below normal.

Breezy, dry west flow will return on Friday with warmer, seasonable
temperatures expected for the day. A digging trough in the
pacific northwest on Saturday will lead to an increase of
southwest and west winds across the northern rockies on Saturday,
with gusts over 40 mph possible over high terrain and also along the
continental divide.

In addition to wind, cloud cover and showers will increase over
north-central idaho and northwest west-central montana throughout
Saturday, with snow levels dropping between 6000 and 7000 feet by
Sunday. This will lead to the potential for light high elevation
snow, including those in glacier national park. For southwest
montana and lemhi county, id: warm, breezy and dry conditions on
Saturday will turn into cool and showery weather for Sunday.

Large-scale northwest flow will then develop and persist into
early next week, leading to cool temperatures and the potential
for showers across western montana.

Aviation
Low stratus has created MVFR for kbtm and southwest montana through
the early afternoon, but the ceiling is expected to continue
lifting and eroding this afternoon. Goes-east already shows a
reduction in thickness and coverage of the stratus since this
morning, indicating signs of improvement. North and east winds
remain over western montana, which is influencing kgpi, kmso, and
kbtm. Rain showers are expected to develop for kmso, kbtm, and
ksmn after 20 00z, which should linger into the overnight period.

Showers could be strong enough to produce reduction in visibility
from brief heavy rainfall, as well as produce isolated lightning
activity. Shower activity over western montana is forecast to
diminish by 20 15z before the next system moves in Thursday
afternoon.

Mso watches warnings advisories
Mt... None.

Id... None.



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, MT22 mi54 minVar 310.00 miFair63°F37°F38%1015.3 hPa

Wind History from GPI (wind in knots)
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
1
PM
2
PM
Last 24hr33CalmS7S5W4N3N5N8N11N12N10NE4N11N9N6N7N8N9NE12NE10NE8N53
1 day ago5N5E7E3N4NW3NE4N5NW3N8N4NW4N7N9NW3NE6N5N3CalmE6E44Calm3
2 days agoSE7SE6CalmSE6SE5CalmW4CalmN5N4CalmW3CalmCalmCalmCalmCalmW5N4CalmNE4SE333

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)   HelpWeather Map
wmap_P
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 (16,3,4,5)
      (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.