Marine Weather and Tides
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 7:05AM||Sunset 7:51PM||Wednesday March 29, 2017 1:15 AM MDT (07:15 UTC)||Moonrise 7:17AM||Moonset 8:55PM||Illumination 3%|
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7 Day Forecast for Marine Location Near Big Timber, MTHourly EDIT Help
Area Discussion for - Billings, MT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 kbyz 290208|
area forecast discussion... Updated
national weather service billings mt
808 pm mdt Tue mar 28 2017
Sent an update earlier this evening to handle narrow line of
convective activity occurring over the montana/dakota border
region and trailing back to near ridegway in carter county. This
is slowly propagating east with the strongest radar returns in
the dakota's. Otherwise, we have some drier air working in from
the west. This should lead to cooler temperatures tonight,
especially over our western zones, though tempered by increasing
high clouds. Bt
Short term Valid for Wed and thu...
upper convergent area shifting east over southeast montana.
Lingering showers were decreasing over the forecast area. Trends
for the evening have been updated to reflect for decreasing pops.
A drying trend takes place for tonight and Wednesday. Will cancel
the winter weather advisory for the bighorn mountains as snow was
quickly winding down there.
Temperatures will be warmer with highs reaching the 60s most
locations. The flow backs Wednesday night and Thursday as a
sharpening upper trough moves toward nevada. Energy and moisture
and will stream out ahead of the main trough and therefore
increasing pops for the west looks valid for those periods.
The main period of potential forcing looks to be Thursday night
and Friday as the western trough moves out into the central and
southern rockies. The models continue to have large discrepancies
with each other. There are also large run to run variances within
the models too, and all this leads to low confidence on how the
pattern resolves itself. The GFS pushes a strong wave out of the
main trough and sends it across central and northern montana
Thursday afternoon and night. The ECMWF was farther south with
this wave and produces stronger ascent over western zones, then
consolidates the forcing around the upper low dropping into
northern arizona. Have kept pops mainly scattered for Thursday and
Thursday night. The mountains and foothills look to be the most
likely location for precipitation, so have low likelies there.
Will have to monitor this event closely as could be a heavy snow
event for area mountains, especially the bighorns. Twh
Long term Valid for fri... Sat... Sun... Mon... Tue...
the extended forecast, beginning on Friday, has not changed much
with this update. There is still plenty of uncertainty in regards
to how much rainfall and mountain snow will fall Thursday night
through Friday night. Precipitation will be ongoing across much of
the region on Friday morning but timing, and exactly how much
will fall over the day Friday, is uncertain. The GFS is still the|
wetter of the two solutions, but even that solution has trended
down for precipitation amounts compared to yesterday while the
euro solution has remained relatively steady. For this update, did
not change rainfall amounts very much. The biggest impacts for
this system will likely stay in the mountains, and more
specifically, the bighorn mountains where there is a better
consensus for heavy precipitation. The upper level low
responsible for the rainy weather will push out of the region by
Saturday morning, with drier conditions moving in for most of the
weekend. By the time the system has moved out, the mountains will
likely see precipitation amounts near an 1-1.5 inches (amounting
to 8-12 inches of snow). We're still forecasting near 0.75 inches
of rain along the foothill locations and around 0.25-0.50 inches
in the plains. Precipitation amounts will be further refined as
model agreement gets better.
The next system of interest moves in Sunday night into Monday.
This will give us another chance for rain and mountain snow.
Models differ in terms of timing, but all show some type of
system pushing through so increased rain chances on Monday and
Tuesday. Temps will be near to above normal through the period
and in the mid to upper 50s. Dobbs
While scattered shower activity is possible over extreme se
montana this afternoon, with brief MVFR restrictions in showers,
vfr conditions will prevail. 30kt wind gusts possible at klvm
after 06z and through most of the day tomorrow. Dobbs/aag
Preliminary point temp/pops
Wed Thu Fri Sat Sun Mon tue
bil 036/063 043/061 042/052 034/061 041/058 038/054 034/053
01/b 23/w 56/r 20/b 11/b 34/w 32/w
lvm 029/060 040/052 035/051 030/060 036/056 033/052 030/052
01/n 46/w 54/o 10/b 13/w 33/w 33/w
hdn 032/064 038/064 040/053 034/061 036/060 036/057 032/055
00/b 13/w 56/r 40/b 01/b 34/w 32/w
mls 036/064 040/064 044/056 036/060 040/060 038/058 036/056
00/b 12/w 54/r 30/b 01/b 33/w 32/w
4bq 035/062 039/065 042/054 036/058 038/060 038/056 035/054
00/b 01/b 35/r 51/b 01/b 35/w 43/w
bhk 036/062 037/065 040/055 036/057 036/059 036/057 034/053
10/b 01/b 46/r 51/b 01/b 34/w 44/w
shr 030/059 034/060 038/050 032/056 034/057 035/054 032/052
00/u 12/w 57/r 61/b 11/b 35/w 43/w
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|Livingston, Mission Field Airport, MT||27 mi||22 min||W 7||10.00 mi||Fair||38°F||21°F||52%||1020.4 hPa|
Wind History from LVM (wind in knots)
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|2 days ago||NW||W||NW||NW||NW||SW||SW||NW||NW||NW||W|
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|Weather Map ||IR Satellite Image from GEOS|
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Wind Forecast for Billings, MT (3,6,7,8)(on/off)  Help
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