Saturday, August18, 2018

Marine Weather and Tides
Big Timber, MT

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Sunrise 6:27AMSunset 8:27PM Saturday August 18, 2018 10:30 AM MDT (16:30 UTC) Moonrise 1:44PMMoonset 11:40PM Illumination 47% Phase: First Quarter Moon; Moon at 7 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 181437
area forecast discussion
national weather service billings mt
837 am mdt Sat aug 18 2018

Showers and thunderstorms have filled in over central zones with
areas of moderate rain from the bighorn basin through yellowstone
county reported the morning. Showers and thunderstorms will
continue through the day as a slow moving upper low slides across
southern montana. Raised pops to account for radar coverage and
latest model guidance. Kept the mention of strong thunderstorms
over the southeast today. CAPE high, but shear low, so would
expect pulsing type of storms. Cloud cover getting in there sooner
than expected could inhibit development, but area looks mostly
clear at this point. Update already sent. Twh

Short term Valid for tdy and sun...

no major changes needed to the going short-term forecast. Gust
front with showers and thunderstorms crossed the W and central
parts of the forecast area earlier in the night, before the gust
front weakened over rosebud county. The cold front was difficult
to discern, but appeared to be over the western part of the area
based on W winds and pressure rises. Upper low was over id at
0730z per water vapor imagery. Plenty of moisture was seen moving
n into the area ahead of the low. The low was progged to be over
se mt NE wy by 00z Sunday and will be accompanied by strong
q-vector convergence. Precipitable waters will be around an inch
today and the best instability will be over SE mt with not much
shear. Href showed a 10 percent np of updraft helicity in the se
corner of mt this afternoon. SPC placed this area in a marginal
risk for severe storms which looked reasonable ahead of the
approaching cold front. For pops, there were two schools of model
solutions. The GFS wrf had a more convective solution along the
cold front, while the ECMWF canadian painted a synoptic picture of
widespread QPF around the upper low. Went with a blend of both
solutions given the nature of the pattern today, which resulted in
scattered to likely pops over the entire area except for SE mt
this morning, then had mainly likely pops across the area this
afternoon. Added mention of hail gusty winds to the marginal risk
area. It will be warm in the mid to upper 80s ahead of the front,
otherwise temperatures will be in the 70s.

The low will move SE out of the area tonight with highest pops
e and SE of kbil. The flow will become more nne tonight which will
help clear out the smoke. A back door front will sag into the area
on Sunday, bringing some upslope showers to areas over and near
the mountains, as well as cooler conditions. Highs will be in the
70s. Upslope flow continues sun. Night ahead of the next system
over the pacific nw. Expect showers and a few evening
thunderstorms over and near the mountains. Arthur

Long term Valid for mon... Tue... Wed... Thu... Fri...

no major changes in the extended as ridging tries to build into
the northern rockies. Some subtle differences in the the models
remain, but the overall picture continues. Enough shortwave energy
is still expected to move over the building ridge to keep some
isolated to scattered pops going through at least mid week. The
mountains are still more likely to see the showers and
thunderstorms than the lower elevations. Temperatures will still
be on the cooler side of normal for Monday with highs generally in
the upper 70s. Tuesdays will see most of the area into the 80s,
with the rest of the forecast in the upper 80s to lower 90s for
highs. Reimer

Showers with some embedded thunderstorms will impact the entire
region today.VFR will generally prevail, but MVFR is possible in
areas of heavier rain, and mountains will be occasionally
obscured. Heaviest rain will shift east of kbil tonight. Western
areas could see a risk of fog tonight. Jkl

Preliminary point temp pops
Tdy Sun Mon Tue Wed Thu fri
bil 076 057 078 056 074 053 080 057 090 060 088 057 086
+ t 41 b 23 t 21 b 11 u 21 u 00 u
lvm 078 049 079 048 075 048 082 050 090 051 087 048 086
7 t 41 b 34 t 32 t 11 u 21 u 01 u
hdn 081 055 079 054 077 052 082 055 092 057 090 055 089
9 t 52 W 23 t 21 b 11 u 21 u 00 u
mls 082 058 079 051 077 053 083 057 091 061 091 058 089
5 t 52 W 12 t 11 u 01 u 21 u 00 u
4bq 081 057 077 047 078 052 081 055 091 058 090 056 089
7 t 73 W 12 t 21 b 11 u 21 u 00 u
bhk 086 057 076 046 076 049 081 054 090 057 088 055 088
7 t 62 W 02 t 11 u 00 u 11 u 10 u
shr 073 053 075 049 078 052 082 052 090 055 088 053 087
8 t 74 t 24 t 32 t 11 u 21 u 00 u

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
Livingston, Mission Field Airport, MT27 mi37 minSW 810.00 miFair67°F51°F57%1019.3 hPa

Wind History from LVM (wind in knots)
Last 24hrW10
1 day agoW10W8W46W74CalmN5N3CalmS4NW5CalmS7SW4CalmN64NW9NW3NW6NW5NW4NW9
2 days agoW10W5NW7W12W12W13W154NW3SW4S6W3CalmSW6NW3CalmNW6W4NW3NW123NW5NW6W9

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Billings, MT (12,3,4,5)
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Ground Weather Radar Station Billings, MT
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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 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 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.