Sunday, September24, 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 7:13AMSunset 7:17PM Sunday September 24, 2017 12:46 AM MDT (06:46 UTC) Moonrise 10:43AMMoonset 8:58PM Illumination 13% 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
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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 240257
afdbyz
area forecast discussion... Updated
national weather service billings mt
857 pm mdt Sat sep 23 2017

Update
The jet over the bighorn mountains and the central zones is
producing a slightly heavier band of precip than the current
grids suggested, so have raised pops across sheridan and big horn
counties to likely through midnight. Otherwise, given the cool
low temperatures and recent rainfall, areas from billings and
hardin west will still see areas of fog overnight. Reimer

Short term Valid for Sun and mon...

will continue to see cool unsettled conditions over the next
couple of days as upper trof slowly shifts northeast and fills in.

Best chance for precipitation will be tonight into tomorrow east
of a miles city to sheridan line as stronger jet dynamics slice
across the region. Expect up to half an inch of additional
accumulation in these areas, while further west periods of mainly
drizzle are expected with brief areas of rain pass through. After
midnight expect areas of locally dense fog to develop over areas
that are not seeing high precipitation chances, with the fog
continuing into tomorrow morning. Issued a winter weather advisory
for the bighorn mountains for 4 to 8 inches of snow, mainly above
7500 feet for tonight through tomorrow. Otherwise any snow
accumulation tonight will amount to a dusting in the foothills.

Expect improving conditions from west to east Sunday afternoon
through Monday. Temperatures will be mainly in the 45 to 55 range
tomorrow, bumping about 5 degrees with more Sun on Monday.

Precipitation chances will continue to decrease through the period
as well, with Monday looking generally pretty nice for early fall.

Chambers

Long term Valid for tue... Wed... Thu... Fri... Sat...

a few lingering showers are possible across eastern areas on
Tuesday as an upper low lifts off to the north and east into the
dakotas. High pressure then looks to build over the northern
rockies for the remainder of the long term. A weak wave moving
through northwest flow Wednesday night may bring a few showers to
the area, otherwise mainly dry conditions can be expected through
the coming week. A gradual warming trend will bring high
temperatures in the 60s to 70s most days with lows in the 30s and
40s. Stp

Aviation
Ifr to MVFR conditions will persist through the remainder of the
night. Lowest CIGS and vsbys can be expected for areas along and
east of a kshr to kmls line where rain from an approaching
disturbance will continue to fall. Patchy fog will be possible as
well with plenty of moisture near the surface from recent
precipitation. Mountains will be obscured. Stp twh

Preliminary point temp pops
Sun Mon Tue Wed Thu Fri sat
-----------------------------------------------------------
bil 040 049 039 057 041 065 043 065 044 065 043 069 045 072
32 r 12 r 11 b 11 b 11 u 00 u 00 u
lvm 032 050 031 056 035 061 035 063 037 065 037 067 040 068
22 o 11 u 11 b 11 b 10 u 00 u 00 u
hdn 041 050 039 056 038 066 041 067 042 067 041 070 042 074
63 r 22 r 11 b 11 b 11 u 00 u 00 u
mls 042 050 041 055 040 064 042 067 043 064 041 068 044 074
83 r 22 r 21 b 11 b 11 u 00 u 00 u
4bq 041 046 040 052 038 062 040 066 041 064 040 066 043 072
86 r 33 r 21 b 11 b 11 b 00 u 00 u
bhk 043 048 040 052 040 061 040 065 041 061 038 063 042 071
95 r 33 r 22 W 01 b 11 u 00 u 00 u
shr 038 044 037 050 035 060 036 063 038 064 038 067 040 071
65 o 33 r 21 b 11 b 11 u 10 u 01 u

Byz watches warnings advisories
Mt... None.

Wy... Winter weather advisory in effect until 6 pm mdt Sunday for
zone 98.

Weather.Gov billings


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bozeman, Gallatin Field, MT10 mi50 minS 510.00 miOvercast42°F36°F79%1020 hPa

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Last 24hrSE3E4CalmCalmSE4S6W3W3CalmN4CalmS4CalmCalm3CalmSE6S6S5S6CalmS5S5S5
1 day agoW6CalmSW5SW7SW8W5W8W9W11W11W11W14W12W9W7W8W8W7W5W8SW6W4W4SW3
2 days agoE3E3S4S3CalmCalmCalmCalmS3CalmSW35CalmNW93--NW4CalmCalmS6S7S6SW4SW3

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 (2,6,7,8)
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Ground Weather Radar Station Billings, 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.