Friday, November16, 2018 L-36.com


Marine Weather and Tides
Big Timber, MT

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:24AMSunset 4:53PM Friday November 16, 2018 1:38 PM MST (20:38 UTC) Moonrise 2:09PMMoonset 12:00AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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 Big Timber, MT
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location: 45.83, -109.95     debug


Area Discussion for - Billings, MT
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Fxus65 kbyz 161729
afdbyz
area forecast discussion... Updated
national weather service billings mt
1029 am mst Fri nov 16 2018

Update
Areas of rain and snow were over the area this morning with colder
air and strong pressure rises working in from the north. Rain
will transition over to snow by the early afternoon for many
places as the colder air works in, with the foothills likely
seeing a transition by late this morning. Snow will continue into
the evening, gradually decreasing from north to south overnight
into Saturday. Models continue to show a downslope drying
signature with the northerly winds for areas downstream of the
snowy and bull mountains. Have adjusted snow amounts down in these
area a bit. Otherwise, snow amounts remain similar to previous
forecasts. Have also gone ahead and adjusted the start times for
the winter weather advisories for many places, to start this
afternoon to account for the switch to snow and the greatest
potential for impacts to roads and the evening commute. Have also
increased winds this afternoon and evening over the area with many
places seeing gusts to 40 mph. Areas prone to a northerly gap
wind like judith gap, could see gusts to 60 mph, along with
blowing snow. The rest of the forecast remains on track and the
previous forecast discussion and an updated aviation discussion
are below. Stp

Short term Valid for tdy and sat...

a strong cold front will be moving through the forecast area
today. Arrival time looks to be early afternoon along and north of
a baker-billings-livingston line and late afternoon across the
montana wyoming border. Current temperatures are mild for this
time of year with 30s across the east and 40s from billings
westward. Models bring some light precipitation across the area by
mid morning today, which would be a rain or rain snow mix, with a
second batch of moisture along and behind the front. Instability
is not overly strong with this system as it does not look to be a
big snow producer.

The biggest impact remains the possibility of icy roads. The
precip is expected to initially fall as rain or a rain snow mix
then quickly change to snow as much colder air arrives this
afternoon. However, models are trending a bit less with
precipitation especially for the immediate billings area. 850mb to
700mb winds are progged to be out of the northwest and north
which may result in some downsloping off the bull mountains and
this is showing up in the models as well. Another concern is that
if less precip falls and is followed by gusty north northwest
winds, road surfaces may dry out a bit more before the
temperatures get too cold. In any case, we will be leaving our
messaging the same and continue to stress the possibility of icy
roads this afternoon and evening, even if snow amounts are less.

The beartooth absaroka and red lodge foothills continue to be
favored with this event with snow amounts in the 3 to 5 inch range
with locally higher amounts.

The system quickly shifts south late tonight into Saturday
morning with just lingering light snow for areas along the
montana wyoming border. Highs today will be reached early in the
afternoon with falling temperatures throughout the afternoon with
lows tonight well into the teens. Highs on Saturday will be well
below normal with readings only in the 20s. Hooley

Long term Valid for sun... Mon... Tue... Wed... Thu...

high pressure building over the west will bring mainly dry
conditions and a warming trend through much of the long term. Lee-
side troughing near the surface will cause tightened pressure
gradients and windy periods along the foothills. Models continue
to suggest a series of pacific short waves breaking down the
upper ridge starting Thursday. So we will continue to advertise
low pop's over and near the high country for the latter part of
the week as things transition to a more unsettled pattern again.

Highs will range from mid 40s to lower 50s for the extended. Bt

Aviation
Conditions will continue to deteriorate across the area with the
passage of a cold front that will bring gusty north winds and snow
to most locations. MVFR conditions will be likely with the
possibility of irf conditions with the heavier snow bands.

Mountains will become obscured. Conditions will be worse along and
west of a line from krpx-kbil-kshr. Conditions will improve from
the north to the south after 05z Saturday. Carrothers

Preliminary point temp pops
Tdy Sat Sun Mon Tue Wed thu
-------------------------------------------------------
bil 048 015 029 019 042 026 046 027 049 027 049 030 049
7 o 71 b 00 u 00 u 00 u 00 u 00 b
lvm 049 014 030 013 040 024 044 023 045 025 046 029 045
9 o 81 b 00 N 00 N 00 N 00 N 01 n
hdn 044 012 030 015 046 023 047 022 050 022 049 025 051
8 o 81 b 00 u 00 b 00 u 00 u 00 b
mls 040 010 026 017 041 025 045 024 048 024 049 026 047
8 o 60 u 00 u 00 b 00 u 00 u 00 u
4bq 046 014 029 017 043 025 047 024 051 023 051 025 050
7 o 71 b 00 u 00 b 00 u 00 u 00 u
bhk 041 007 024 014 038 023 042 023 047 022 047 023 046
9 o 40 u 00 u 01 b 00 u 00 u 00 u
shr 045 014 029 011 045 021 048 021 051 023 052 025 049
9 o 93 S 00 u 00 u 00 u 00 u 00 b

Byz watches warnings advisories
Mt... Winter weather advisory in effect from 3 pm this afternoon to
9 am mst Saturday for zones 28-29-34-35-40>42-57.

Winter weather advisory in effect from 3 pm this afternoon to
noon mst Saturday for zones 38-39.

Winter weather advisory in effect until 9 am mst Saturday for
zones 56-63>66.

Wy... Winter weather advisory in effect from 3 pm this afternoon to
noon mst Saturday for zone 99.

Winter weather advisory in effect until noon mst Saturday for
zone 98.

Weather.Gov billings


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Livingston, Mission Field Airport, MT27 mi46 minNW 9 G 157.00 miLight Snow26°F19°F78%1022.5 hPa

Wind History from LVM (wind in knots)
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Last 24hrW21W14W12W10
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W11NW8SW16NW21
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1 day agoSW31
G44
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W16W18W17SW17SW22SW19
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2 days agoSW22
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W26
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SW33
G54
SW31
G47
W24
G38
SW32
G41
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G46
SW28
G39

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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GOES Local Image of    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 Billings, MT (15,3,4,5)
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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.