Tuesday, September26, 2017 L-36.com


Marine Weather and Tides
Bozeman, 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 7:16AMSunset 7:13PM Tuesday September 26, 2017 6:54 AM MDT (12:54 UTC) Moonrise 12:38PMMoonset 10:13PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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 Bozeman, MT
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location: 45.71, -110.99     debug


Area Discussion for - Billings, MT
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Fxus65 kbyz 261032
afdbyz
area forecast discussion
national weather service billings mt
432 am mdt Tue sep 26 2017

Short term Valid for tdy and wed...

a few days of pleasant mild weather ahead as high pressure gains
the upper hand over our region. After some morning fog in the
eastern zones, there is just a slight chance of some convective
activity over the high country today thanks to a period of
unstable NW flow. Otherwise, we will see fair skies and milder
temps. More Sun expected Wednesday as ridging increases.

Temperatures will be well into the 60s with a few lower 70s
likely. Bt

Long term Valid for thu... Fri... Sat... Sun... Mon...

upper ridge dominates our weather Thursday into Saturday morning
with dry and mild weather. High temperatures are expected to be in
the upper 60s to lower 70s Thursday through Saturday. This upper
ridge will be sliding eastward during this time so that it should
be exiting mt Friday night. A weak shortwave is then progged to
track northward Friday night, which could produce an isolated
shower over the bighorn mountains.

An upper low tracking eastward over the pacific northwest should
bring scattered showers and thunderstorms to our southwest
mountains Saturday morning, western areas Saturday afternoon, and
to our whole CWA Saturday night. Showers are still possible during
the day on Sunday with the upper low over central mt, which is a
change from last night's model runs. A surface cold front should
also move through the region Saturday night, bringing in cooler
air for Sunday through early next week, with high temperatures
generally in the 50s across the lower elevations. The air will be
cool enough to change rain to accumulating snow in the mountains
beginning Saturday night.

Surface and mid-level pressure gradients behind the cold front
appear favorable for breezy conditions for much of the area
Saturday night through early next week. In addition, gap flow
winds near livingston are possible beginning Sunday afternoon and
then continuing into early next week.

For Monday, models diverge with the GFS moving the upper low more
slowly and thus keeping showers possible and the ECMWF moving the
low more quickly, giving a mostly dry day. Given the model
uncertainty kept chance pops going on Monday. Rms

Aviation
Patchy fog is possible this morning over eastern mt and north
central wy. A few showers are possible over the mountains this
afternoon. Mountains will be obscured at times today. Otherwise,
vfr will prevail. Rms

Preliminary point temp pops
Tdy Wed Thu Fri Sat Sun mon
-------------------------------------------------------
bil 065 043 069 044 070 046 071 047 070 045 058 041 057
0 b 00 u 00 u 00 u 01 b 33 W 22 w
lvm 062 037 067 036 068 038 071 043 066 039 053 037 052
1 b 10 u 00 u 00 u 02 t 42 W 23 w
hdn 066 041 071 042 073 045 073 045 073 045 061 041 059
0 b 00 u 00 u 00 u 01 u 33 W 12 w
mls 065 042 071 045 073 046 073 049 073 048 061 042 058
0 f 00 u 00 u 00 u 11 u 33 W 12 w
4bq 064 041 069 042 072 045 071 047 073 046 060 040 057
0 u 00 u 00 u 01 N 11 u 33 W 11 n
bhk 062 040 070 043 071 045 071 047 073 046 062 041 058
1 b 00 u 00 u 00 N 11 u 32 W 11 n
shr 062 038 067 039 068 042 069 042 070 042 057 037 056
0 b 00 u 00 u 00 b 00 u 23 W 11 b

Byz watches warnings advisories
Mt... None.

Wy... None.

Weather.Gov billings


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bozeman, Gallatin Field, MT10 mi58 minN 010.00 miOvercast47°F41°F80%1020.4 hPa

Wind History from BZN (wind in knots)
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Last 24hrSE6SE4SE4SE5SE4CalmCalm65
G15
W7W9NW8NW3W6W6CalmCalmSE4SE4SE3S4SE4SE3Calm
1 day agoCalmW3CalmCalmW3Calm3E35SE5S8S6S5SE7SE7S8N3S4E5S6SE3SE3SE8E3
2 days agoW3W3CalmN4CalmS4CalmCalm3CalmSE6S6S5S6CalmS5S5S5SE4CalmSE5SE5SE4S4

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 NorthernPlains    EDIT
Geos

Wind Forecast for Billings, MT (8,2,3,4)
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Ground Weather Radar Station Billings, MT
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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.