West Yellowstone, MT

8:33 PM MST on February 11, 2012 (GMT -0700)
Elev: 6614 ft
Lon: 111.2° W
Lat: 44.7° N
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Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Kari Kiefer
Weather Underground midday recap for Saturday, February 11, 2012.

Cold air poured into the Plains on Saturday, while snow showers developed in parts of the Northeast. A strong low pressure system that brought heavy rain to the Southern Plains and Southeast has advanced eastward and off the East Coast into the Atlantic Ocean. However, counter-clockwise flow around this system continued to push moisture into the Northeast, Great Lakes, and Ohio River Valley. In addition to cool air over the region, this allowed for snow showers to develop across Michigan and the Ohio River Valley. Snowfall accumulations ranged from 1 to 3 inches in most areas, with up to 5 inches at higher elevations of the Central Appalachians. Coastal regions remained slightly warmer, which maintained light rain showers from southern Maine through Virginia.

Behind this system, a dominant ridge of high pressure continued to build over the Plains. This system started to stretch eastward over the Mississippi Valley. Flow around this system pulled cold air in from central Canada and kept seasonable cool temperatures over the Central US. High temperatures only reached into the 30s in parts of northern Texas, while the Central and Northern Plains saw highs in the teens, with overnight lows in the negative teens.

Out West, cool conditions persisted with areas of wet weather as a trough of low pressure moved over the Pacific Northwest and into the Intermountain West and Great Basin. Rainfall totals and high elevation snow accumulation remained light. A few light rain showers extended into California as moist onshore flow persisted.
Weather Underground midday recap for Saturday, February 11, 2012.

Cold air poured into the Plains on Saturday, while snow showers developed in parts of the Northeast. A strong low pressure system that brought heavy rain to the Southern Plains and Southeast has advanced eastward and off the East Coast into the Atlantic Ocean. However, counter-clockwise flow around this system continued to push moisture into the Northeast, Great Lakes, and Ohio River Valley. In addition to cool air over the region, this allowed for snow showers to develop across Michigan and the Ohio River Valley. Snowfall accumulations ranged from 1 to 3 inches in most areas, with up to 5 inches at higher elevations of the Central Appalachians. Coastal regions remained slightly warmer, which maintained light rain showers from southern Maine through Virginia.

Behind this system, a dominant ridge of high pressure continued to build over the Plains. This system started to stretch eastward over the Mississippi Valley. Flow around this system pulled cold air in from central Canada and kept seasonable cool temperatures over the Central US. High temperatures only reached into the 30s in parts of northern Texas, while the Central and Northern Plains saw highs in the teens, with overnight lows in the negative teens.

Out West, cool conditions persisted with areas of wet weather as a trough of low pressure moved over the Pacific Northwest and into the Intermountain West and Great Basin. Rainfall totals and high elevation snow accumulation remained light. A few light rain showers extended into California as moist onshore flow persisted.
Weather Underground Broadcast Network
West Yellowstone Weather at a Glance
Updated 7:39 PM MST
Elevation
6700 ft
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Now
Overcast
Overcast
Temperature
30 °F
Feels Like 30 °F
Wind(mph)
0
Sunrise / Set
7:31 AM
5:46 PM
Moon
Waning Gibbous
Tonight
Snow Showers 16 °F
Snow Showers
40% chance of precipitation
Tomorrow
Chance of Snow 31 °F
Chance of Snow
40% chance of precipitation
Tomorrow Night
Chance of Snow 16 °F
Chance of Snow
40% chance of precipitation
Monday
Chance of Snow 29 | 11 °F
Chance of Snow
30% chance of precipitation
Tuesday
Chance of Snow 29 | 5 °F
Chance of Snow
20% chance of precipitation
Wednesday
Chance of Snow 27 | 9 °F
Chance of Snow
20% chance of precipitation
Tomorrow is forecast to be Much Cooler than today.
Conditions
Pressure
29.92 in
Visibility
10.0 miles
Clouds
Scattered Clouds 3800 ft
Overcast 4600 ft
Moisture
Humidity
82%
Rainfall
0.00 in
Snow Depth
38 in, 49 in, 79 in
METAR
METAR KWYS 120315Z AUTO 00000KT 10SM SCT038 OVC046 M02/M04 A2992 RMK AO2
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Weather Radio
Weather Radio Index
Temperature
Windchill
30 °F
Dew Point
25 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
.10 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
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Regional Forecast for Gallatin
Tonight
nt_chancesnow Mostly cloudy with isolated snow showers. Lows 15 to 20. South winds up to 5 mph. Chance of snow 20 percent.
Sunday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. West winds up to 5 mph.
Sunday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Lows 15 to 25. Southwest winds up to 5 mph.
Monday
chancesnow Mostly cloudy. A slight chance of snow showers in the morning...then a chance of snow showers in the afternoon. Highs 30 to 40. West winds up to 10 mph. Chance of snow 40 percent.
Monday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 15 to 20. Northwest winds up to 10 mph...shifting to the southwest up to 5 mph after midnight.
Tuesday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Tuesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Lows 10 to 20.
Wednesday and Wednesday Night
nt_chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 40. Lows 10 to 20.
Thursday
chancesnow Partly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Thursday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 10 to 25.
Friday and Friday Night
nt_chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 40. Lows 10 to 25.
Saturday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Source: NWS at 2:29 PM MST on February 11, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 59758
Saturday, 11
Snow
40 | 16 °F
Snow
Chance of
Precipitation
40%
Sunday, 12
Chance of Snow
31 | 16 °F
Chance of Snow
Chance of
Precipitation
40%
Monday, 13
Chance of Snow
29 | 11 °F
Chance of Snow
Chance of
Precipitation
30%
Tuesday, 14
Chance of Snow
29 | 5 °F
Chance of Snow
Chance of
Precipitation
20%
Wednesday, 15
Chance of Snow
27 | 9 °F
Chance of Snow
Chance of
Precipitation
20%
Thursday, 16
Chance of Snow
29 | 7 °F
Chance of Snow
Chance of
Precipitation
20%
Friday, 17
Chance of Snow
29 | 9 °F
Chance of Snow
Chance of
Precipitation
30%
Saturday, 18
Chance of Snow
29 | NA
Chance of Snow
Chance of
Precipitation
30%
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Tonight
nt_chancesnow Mostly cloudy with isolated snow showers. Lows 15 to 20. South winds up to 5 mph. Chance of snow 20 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 19 | 17 25 | 18 30 | 26 20 | 19
Wind 2 mph ESE 2 mph SSW 1 mph SSW 1 mph ENE
Humidity 94% 75% 84% 94%
Chance of Precip. 80% 40% 40% 40%
Cloud Cover 83% 73% 76% 94%
Conditions Chance of Snow Chance of Snow Snow Showers Snow Showers
Sunrise & Sunset
7:31 AM
5:46 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Sunday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. West winds up to 5 mph.
Sunday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Lows 15 to 25. Southwest winds up to 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 16 | 13 23 | 17 30 | 24 23 | 19
Wind 0 mph SSE 3 mph SW 4 mph SW 1 mph SW
Humidity 92% 74% 77% 88%
Chance of Precip. 40% 40% 40% 40%
Cloud Cover 69% 67% 83% 83%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:30 AM
5:48 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Monday
chancesnow Mostly cloudy. A slight chance of snow showers in the morning...then a chance of snow showers in the afternoon. Highs 30 to 40. West winds up to 10 mph. Chance of snow 40 percent.
Monday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 15 to 20. Northwest winds up to 10 mph...shifting to the southwest up to 5 mph after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 17 | 14 23 | 15 27 | 19 15 | 13
Wind 2 mph SSW 6 mph SSW 1 mph ENE 2 mph South
Humidity 86% 70% 70% 91%
Chance of Precip. 40% 30% 30% 20%
Cloud Cover 77% 67% 79% 79%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:28 AM
5:49 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Tuesday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Tuesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Lows 10 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 12 | 11 22 | 13 24 | 16 10 | 6
Wind 2 mph East 1 mph West 1 mph NW 1 mph SW
Humidity 92% 65% 70% 79%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 64% 64% 59% 59%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:27 AM
5:51 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Wednesday and Wednesday Night
nt_chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 40. Lows 10 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 9 | 2 20 | 10 26 | 13 17 | 10
Wind 1 mph SSW 1 mph SSW 1 mph WNW 1 mph SSW
Humidity 75% 68% 60% 77%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 61% 61% 59% 59%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:25 AM
5:52 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Thursday
chancesnow Partly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Thursday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 10 to 25.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 11 | 5 20 | 12 26 | 14 12 | 10
Wind 2 mph SSW 4 mph SSW 4 mph SSW 2 mph South
Humidity 79% 73% 62% 96%
Chance of Precip. 20% 20% 20% 30%
Cloud Cover 45% 45% 56% 56%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:25 AM
5:52 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Friday and Friday Night
nt_chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 40. Lows 10 to 25.
Saturday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 9 | 8 20 | 14 27 | 19 17 | 15
Wind 3 mph South 5 mph South 4 mph SSW 2 mph SW
Humidity 93% 78% 72% 90%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 64% 64% 70% 70%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:25 AM
5:52 PM
Source: NWS at 2:29 PM MST on February 11, 2012
Regional Forecast for Gallatin
Saturday
chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 14 | 9 20 | 13 27 | 19 17 | 15
Wind 2 mph SSW 4 mph SSW 4 mph SSW 2 mph SW
Humidity 79% 75% 72% 90%
Chance of Precip. 30% 40% 30% 30%
Cloud Cover 62% 62% 70% 70%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:25 AM
5:52 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 11, 2012 Max Temp Min Temp
Normal (KWYS) 30 °F 4 °F
Record (KWYS) 23 °F (2011) 14 °F (2011)
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Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
Feb. 11, 2012 Rise Set
Actual Time 7:31 AM MST 5:46 PM MST
Civil Twilight 7:01 AM MST 6:17 PM MST
Nautical Twilight 6:26 AM MST 6:51 PM MST
Astronomical Twilight 5:52 AM MST 7:25 PM MST
Moon 10:55 PM MST (2/11) 9:01 AM MST (2/11)
Length Of Visible Light 11h 16m
Length of Day
10h 15m
Tomorrow will be 2m 50s longer.
Waning Gibbous, 78% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Visit Astronomy
Today's Extremes
State Highs State Lows
35 °F
Missoula
35 °F
West Yellowstone
34 °F
Kalispell
32 °F
Havre
32 °F
Butte
-14 °F
Glendive
-14 °F
Sidney-Richland
-13 °F
Jordan
-13 °F
Havre
-11 °F
Baker
Source: NWS
Snow Depth
Station Depth Elevation
Whiskey Creek 38 in 6800 ft
Madison Plateau 49 in 7750 ft
Black Bear 79 in 8150 ft
Carrot Basin 52 in 9000 ft
Tepee Creek 28 in 8000 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
West Yellowstone 28 °F Overcast 8:15 PM MST
Yellowstone 24 °F N/A 7:56 PM MST
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: VFR (KWYS)
Wind Speed: 0.0 kts.
Wind Dir: 267° (West)
Ceiling: 4600 ft

METAR KWYS 120315Z AUTO 00000KT 10SM SCT038 OVC046 M02/M04 A2992 RMK AO2

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Partly Cloudy, 63 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 12, 2012 Mostly Cloudy, 45 °F
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 63 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
RAWS HEBGEN LAKE MT, West Yellowstone, MT 30 °F 30 °F 25 °F 82% West  at  0 mph 0.00 in / hr 6700 ft 7:39 PM MST MADIS
MesoWest WEST YELLOWSTONE , West Yellowstone, MT 33 °F 33 °F - - North  at  - 0.00 in / hr 6700 ft 7:00 PM MST MADIS
Lower Beartrap, West Yellowstone, MT 28.2 °F 28 °F 23 °F 81% North  at  0.0 mph 0.00 in / hr 6572 ft 8:15 PM MST Normal  
MesoWest WHISKEY CREEK , West Yellowstone, MT 33 °F 33 °F - - North  at  - 0.00 in / hr 6799 ft 7:00 PM MST MADIS
HADS VALLEY VIEW NEAR ISLAND PARK 17N ID, West Yellowstone, MT 33 °F 33 °F - - North  at  - 0.00 in / hr 6500 ft 7:45 PM MST MADIS
ITD Henry\'s Lake ID, Island Park, ID 34 °F 29 °F 33 °F 97% East  at  6 mph 0.00 in / hr 6617 ft 7:51 PM MST MADIS
HADS FIREHOLE RIVER NEAR WEST YELLOWS WY, West Yellowstone, MT 31 °F 31 °F - - North  at  - 0.00 in / hr 7080 ft 7:00 PM MST MADIS
HADS TANTALUS CK AT AT YELLOWSTONE NA WY, Yellowstone National Park, WY - - - - North  at  - 0.00 in / hr 7459 ft 7:30 PM MST MADIS
MesoWest MADISON PLATEAU , West Yellowstone, MT 32 °F 32 °F - - North  at  - 0.00 in / hr 7750 ft 7:00 PM MST MADIS
HADS OLD FAITHFUL RANGER STATION WY, Yellowstone National Park, WY 28 °F 28 °F 24 °F 86% East  at  2 mph 0.00 in / hr 7319 ft 7:15 PM MST MADIS
MesoWest ISLAND PARK , Island Park, ID 36 °F 36 °F - - North  at  - 0.00 in / hr 6290 ft 6:00 PM MST MADIS
HADS FIREHOLE RVR AT OLD FAITHFUL WY, Yellowstone National Park, WY 29 °F 29 °F - - North  at  - 0.00 in / hr 7350 ft 7:00 PM MST MADIS
HADS ISLAND PARK DAM & RESERVIOR ID, Island Park, ID 34 °F 34 °F - - North  at  - 0.00 in / hr 6302 ft 6:30 PM MST MADIS
Centennial Shores, Island Park, ID 32.9 °F 33 °F 20 °F 25% NW  at  0.0 mph - / hr 6295 ft 8:33 PM MST Rapid Fire  
MesoWest WHITE ELEPHANT , Island Park, ID 31 °F 31 °F - - North  at  - 0.00 in / hr 7709 ft 7:00 PM MST MADIS
RAWS QUADRANT WY, Yellowstone National Park, WY 28 °F 28 °F 22 °F 79% East  at  2 mph 0.00 in / hr 7899 ft 7:49 PM MST MADIS
MesoWest BEAVER CREEK , Cameron, MT 29 °F 29 °F - - North  at  - 0.00 in / hr 7850 ft 7:00 PM MST MADIS
MesoWest CARROT BASIN , Cameron, MT 26 °F 26 °F - - North  at  - 0.00 in / hr 9000 ft 7:00 PM MST MADIS
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