Bison, SD

6:25 AM MST on February 12, 2012 (GMT -0700)
Elev: 2756 ft
Lon: 102.5° W
Lat: 45.5° N
Rapid Fire Updates™ Updated 5:55 AM MST Make this Location a Weather Sticker® Share:
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Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Bison Weather at a Glance
Updated 5:55 AM MST
Elevation
2785 ft
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Now
Clear
Clear
Temperature
1 °F
Feels Like -15 °F
Wind(mph)
10
Sunrise / Set
6:56 AM
5:12 PM
Moon
Waning Gibbous
Today
Clear 31 °F
Clear
Tonight
Partly Cloudy 13 °F
Partly Cloudy
Tomorrow
Partly Cloudy 38 | 22 °F
Partly Cloudy
Tuesday
Partly Cloudy 38 | 20 °F
Partly Cloudy
Wednesday
Partly Cloudy 40 | 22 °F
Partly Cloudy
Thursday
Partly Cloudy 40 | 22 °F
Partly Cloudy
Today is forecast to be Much Warmer than yesterday.
Conditions
Pressure
30.04 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
71%
Rainfall
-
Not available.
Snow Depth
Not available.
METAR
METAR KHEI 121253Z AUTO 13005KT 10SM CLR M17/M21 A3007 RMK AO2 SLP243 T11721211
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Weather Radio
Temperature
Windchill
-15 °F
Dew Point
-6 °F
Wind
Speed / Dir
10 mph from East
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 Perkins
Today
sunny Sunny. Highs in the upper 20s. Southeast winds 5 to 15 mph. Lowest wind chill readings 3 below to 13 below zero in the morning.
Tonight
nt_partlycloudy Partly cloudy. Lows around 13. Southeast winds up to 10 mph shifting to the southwest after midnight.
Monday
partlycloudy Mostly sunny. Highs in the lower 40s. Northwest winds 5 to 15 mph. Lowest wind chill readings zero to 10 above zero in the morning.
Monday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s. Northwest winds 10 to 15 mph.
Tuesday
partlycloudy Mostly sunny. Highs in the upper 30s. Northwest winds 10 to 20 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows around 20.
Wednesday
partlycloudy Mostly sunny. Highs around 40.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s.
Thursday
partlycloudy Mostly sunny. Highs in the upper 30s.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s.
Friday
sunny Sunny. Highs in the lower 40s.
Friday Night
nt_partlycloudy Partly cloudy. Lows in the mid 20s.
Saturday
partlycloudy Mostly sunny. Highs in the mid 40s.
Source: NWS at 3:19 am MST on February 12, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 57620
Sunday, 12
Clear
31 | 13 °F
Clear
Chance of
Precipitation
0%
Monday, 13
Partly Cloudy
38 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 14
Partly Cloudy
38 | 20 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Partly Cloudy
40 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 16
Partly Cloudy
40 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 17
Clear
41 | 25 °F
Clear
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
41 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Today
sunny Sunny. Highs in the upper 20s. Southeast winds 5 to 15 mph. Lowest wind chill readings 3 below to 13 below zero in the morning.
Tonight
nt_partlycloudy Partly cloudy. Lows around 13. Southeast winds up to 10 mph shifting to the southwest after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 4 | -2 25 | 6 23 | 11 14 | 9
Wind 7 mph SE 8 mph SSE 5 mph SE 2 mph South
Humidity 71% 43% 58% 80%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 8% 22% 33% 34%
Conditions Clear Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:56 AM
5:12 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Monday
partlycloudy Mostly sunny. Highs in the lower 40s. Northwest winds 5 to 15 mph. Lowest wind chill readings zero to 10 above zero in the morning.
Monday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s. Northwest winds 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 15 | 10 33 | 17 31 | 19 23 | 20
Wind 5 mph WNW 8 mph WNW 8 mph NW 7 mph WNW
Humidity 85% 50% 62% 88%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 30% 25% 25% 22%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
6:55 AM
5:13 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Tuesday
partlycloudy Mostly sunny. Highs in the upper 30s. Northwest winds 10 to 20 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows around 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 22 36 | 22 30 | 20 22 | 19
Wind 8 mph WNW 10 mph WNW 8 mph NW 5 mph WNW
Humidity 95% 57% 66% 87%
Chance of Precip. 0% 10% 10% 0%
Cloud Cover 50% 43% 42% 43%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:53 AM
5:14 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Wednesday
partlycloudy Mostly sunny. Highs around 40.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 16 38 | 18 35 | 16 26 | 18
Wind 5 mph WNW 6 mph West 6 mph WNW 7 mph West
Humidity 74% 45% 47% 66%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 44% 34% 36% 30%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:52 AM
5:16 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Thursday
partlycloudy Mostly sunny. Highs in the upper 30s.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 26 | 16 38 | 16 36 | 13 25 | 14
Wind 9 mph WNW 11 mph WNW 8 mph NW 6 mph West
Humidity 66% 39% 40% 63%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 29% 34% 36% 35%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:17 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Friday
sunny Sunny. Highs in the lower 40s.
Friday Night
nt_partlycloudy Partly cloudy. Lows in the mid 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 28 | 15 41 | 18 37 | 18 28 | 20
Wind 7 mph West 6 mph West 2 mph SW 4 mph SSW
Humidity 60% 38% 46% 71%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 20% 17% 26% 48%
Conditions Clear Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:17 PM
Source: NWS at 3:19 am MST on February 12, 2012
Regional Forecast for Perkins
Saturday
partlycloudy Mostly sunny. Highs in the mid 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 27 | 20 38 | 20 37 | 18 28 | 20
Wind 5 mph West 10 mph NW 2 mph SW 4 mph SSW
Humidity 78% 49% 46% 71%
Chance of Precip. 0% 10% 0% 0%
Cloud Cover 41% 44% 26% 48%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:17 PM
BestForecast (what's this?)
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History & Almanac
February 12, 2012 Max Temp Min Temp
Normal (KHEI) 31 °F 9 °F
Yesterday 21 °F -18 °F
Yesterday's Heating Degree Days: 63
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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.
Astronomy
Feb. 12, 2012 Rise Set
Actual Time 6:56 AM MST 5:12 PM MST
Civil Twilight 6:26 AM MST 5:42 PM MST
Nautical Twilight 5:51 AM MST 6:17 PM MST
Astronomical Twilight 5:17 AM MST 6:52 PM MST
Moon 11:35 PM MST 8:56 AM MST
Length Of Visible Light 11h 16m
Length of Day
10h 15m
Tomorrow will be 2m 56s longer.
Waning Gibbous, 74% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Today's Extremes
State Highs State Lows
15 °F
Pine Ridge
11 °F
Ellsworth AFB
10 °F
Winner
10 °F
Spearfish
10 °F
Rapid City
-7 °F
Aberdeen
-5 °F
Watertown
-4 °F
Brookings
-2 °F
Pierre
-2 °F
Madison
Source: NWS
Snow Depth
Station Depth Elevation
North Rapid Creek 22 in 6130 ft
Blind Park 21 in 6890 ft
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Snow Storm
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Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Hettinger 1 °F Clear 5:53 AM MST
Faith 5 °F N/A 5:56 AM MST
Buffalo 2 °F N/A 5:56 AM MST
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: VFR (KHEI)
Wind Speed: 5.0 kts.
Wind Dir: 100° (East)
Ceiling: Unlimited

METAR KHEI 121253Z AUTO 13005KT 10SM CLR M17/M21 A3007 RMK AO2 SLP243 T11721211

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, 61 °F
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
NonFedAWOS BISON , Bison, SD 1 °F -15 °F -6 °F 71% East  at  10 mph 0.00 in / hr 2785 ft 5:55 AM MST MADIS
HADS SHADEHILL RESERVOIR NEAR SHADEHI SD, Lemmon, SD -1 °F -1 °F - - North  at  - 0.00 in / hr 2250 ft 5:15 AM MST MADIS
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