Arapahoe, WY

2:07 PM MST on February 13, 2012 (GMT -0700)
Elev: 5164 ft
Lon: 108.5° W
Lat: 43.0° N
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Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Broadcast Network
Arapahoe Weather at a Glance
Updated 2:05 PM MST
Weather Station - report
Riverton
Elevation
5405 ft
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Now
Overcast
Overcast
Temperature
40.9 °F
Feels Like 41 °F
Wind(mph)
2.0
Sunrise / Set
7:15 AM
5:42 PM
Moon
Waning Gibbous
Today
Chance of Snow 44 °F
Chance of Snow
50% chance of precipitation
Tonight
Partly Cloudy 16 °F
Partly Cloudy
Tomorrow
Partly Cloudy 36 | 18 °F
Partly Cloudy
Wednesday
Chance of Snow 34 | 16 °F
Chance of Snow
20% chance of precipitation
Thursday
Clear 36 | 18 °F
Clear
Friday
Clear 38 | 14 °F
Clear
Today is forecast to be Much Warmer than yesterday.
Conditions
Pressure
29.79 in
Visibility
10.0 miles
Clouds
Few 4300 ft
Scattered Clouds 5000 ft
Overcast 6000 ft
Moisture
Humidity
45%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KRIW 132053Z AUTO 12003KT 10SM FEW043 SCT050 OVC060 04/M06 A2969 RMK AO2 SLP068 6//// T00441061 58014
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Weather Radio
Weather Radio Index
Temperature
Windchill
41 °F
Dew Point
21 °F
Wind
Speed / Dir
2.0 mph from ESE
Wind Gust
Health
UV
1.4 out of 16
Pollen
.10 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Regional Forecast for Wind River Basin
Tonight
nt_cloudy Mostly cloudy. Lows 15 to 19.
Tuesday
chancesnow Partly cloudy in the morning...then mostly cloudy with a 20 percent chance of snow in the afternoon. Highs 32 to 36.
Tuesday Night
nt_chancesnow Cloudy. Slight chance of snow in the evening...then chance of snow after midnight. Lows around 20. Chance of snow 50 percent.
Wednesday
chancesnow Mostly cloudy with a 20 percent chance of snow. Highs 29 to 33.
Wednesday Night
nt_partlycloudy Partly cloudy. Patchy fog after midnight. Lows 12 to 15.
Thursday
partlycloudy Mostly sunny. Highs 30 to 35.
Thursday Night
nt_sunny Mostly clear. Lows 15 to 19.
Friday
partlycloudy Mostly sunny. Highs 34 to 39.
Friday Night
nt_sunny Mostly clear. Lows 15 to 19.
Saturday
partlycloudy Mostly sunny. Highs 34 to 39.
Saturday Night
nt_sunny Mostly clear. Lows 17 to 21.
Sunday
partlycloudy Mostly sunny in the morning then becoming partly cloudy. Highs in the mid to upper 30s.
Sunday Night
nt_partlycloudy Partly cloudy in the evening then clearing. Lows 17 to 21.
Source: NWS at 1:51 PM MST on February 13, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 82510
Monday, 13
Chance of Snow
44 | 16 °F
Chance of Snow
Chance of
Precipitation
50%
Tuesday, 14
Partly Cloudy
36 | 18 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 15
Chance of Snow
34 | 16 °F
Chance of Snow
Chance of
Precipitation
20%
Thursday, 16
Clear
36 | 18 °F
Clear
Chance of
Precipitation
0%
Friday, 17
Clear
38 | 14 °F
Clear
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
36 | 18 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 19
Partly Cloudy
36 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Tonight
nt_cloudy Mostly cloudy. Lows 15 to 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 19 33 | 22 35 | 24 23 | 19
Wind 1 mph WNW 1 mph NW 1 mph NE 4 mph NE
Humidity 87% 65% 64% 79%
Chance of Precip. 30% 50% 50% 10%
Cloud Cover 92% 47% 70% 66%
Conditions Overcast Partly Cloudy Mostly Cloudy Partly Cloudy
Sunrise & Sunset
7:15 AM
5:42 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Tuesday
chancesnow Partly cloudy in the morning...then mostly cloudy with a 20 percent chance of snow in the afternoon. Highs 32 to 36.
Tuesday Night
nt_chancesnow Cloudy. Slight chance of snow in the evening...then chance of snow after midnight. Lows around 20. Chance of snow 50 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 16 | 13 30 | 19 32 | 21 23 | 17
Wind 3 mph NE 2 mph NE 3 mph North 5 mph North
Humidity 83% 65% 64% 79%
Chance of Precip. 10% 10% 10% 20%
Cloud Cover 35% 52% 69% 62%
Conditions Partly Cloudy Partly Cloudy Chance of Snow Chance of Snow
Sunrise & Sunset
7:13 AM
5:43 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Wednesday
chancesnow Mostly cloudy with a 20 percent chance of snow. Highs 29 to 33.
Wednesday Night
nt_partlycloudy Partly cloudy. Patchy fog after midnight. Lows 12 to 15.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 14 31 | 18 29 | 15 19 | 11
Wind 3 mph SSW 3 mph South 3 mph SSW 6 mph SW
Humidity 85% 58% 55% 68%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 51% 42% 24% 30%
Conditions Chance of Snow Partly Cloudy Clear Fog
Sunrise & Sunset
7:12 AM
5:44 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Thursday
partlycloudy Mostly sunny. Highs 30 to 35.
Thursday Night
nt_sunny Mostly clear. Lows 15 to 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 10 30 | 16 32 | 16 21 | 13
Wind 4 mph SW 2 mph SW 4 mph SW 5 mph SW
Humidity 71% 58% 50% 68%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 21% 24% 24% 24%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:10 AM
5:46 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Friday
partlycloudy Mostly sunny. Highs 34 to 39.
Friday Night
nt_sunny Mostly clear. Lows 15 to 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 12 32 | 18 32 | 17 19 | 12
Wind 5 mph West 2 mph WNW 2 mph SW 4 mph SW
Humidity 68% 57% 55% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 21% 22% 23% 21%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:09 AM
5:47 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Saturday
partlycloudy Mostly sunny. Highs 34 to 39.
Saturday Night
nt_sunny Mostly clear. Lows 17 to 21.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 10 28 | 16 32 | 17 21 | 14
Wind 4 mph SSW 1 mph SW 3 mph SSW 6 mph WSW
Humidity 71% 60% 55% 73%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 27% 28% 34% 35%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:09 AM
5:47 PM
Source: NWS at 1:51 PM MST on February 13, 2012
Regional Forecast for Wind River Basin
Sunday
partlycloudy Mostly sunny in the morning then becoming partly cloudy. Highs in the mid to upper 30s.
Sunday Night
nt_partlycloudy Partly cloudy in the evening then clearing. Lows 17 to 21.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 12 30 | 16 32 | 17 21 | 14
Wind 6 mph WSW 4 mph West 3 mph SSW 6 mph WSW
Humidity 70% 56% 55% 73%
Chance of Precip. 10% 10% 0% 10%
Cloud Cover 35% 36% 34% 35%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:09 AM
5:47 PM
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Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 13, 2012 Max Temp Min Temp
Normal (KRIW) - -
Record (KRIW) 59 °F (1954) -7 °F (2004)
Yesterday 33 °F 21 °F
Yesterday's Heating Degree Days: 38
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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. 13, 2012 Rise Set
Actual Time 7:15 AM MST 5:42 PM MST
Civil Twilight 6:45 AM MST 6:11 PM MST
Nautical Twilight 6:12 AM MST 6:44 PM MST
Astronomical Twilight 5:39 AM MST 7:17 PM MST
Moon No Moon Rise 10:03 AM MST
Length Of Visible Light 11h 25m
Length of Day
10h 27m
Tomorrow will be 2m 42s longer.
Waning Gibbous, 60% 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
44 °F
Torrington
42 °F
Gillette
41 °F
Sheridan
39 °F
Riverton
39 °F
Lander
7 °F
Pinedale
15 °F
Jackson
15 °F
Worland
16 °F
Torrington
17 °F
Yellowstone
Source: NWS
Snow Depth
Station Depth Elevation
Townsend Creek 30 in 8700 ft
Big Sandy Opening 44 in 9080 ft
New Fork Lake 32 in 8340 ft
Gunsight Pass 36 in 9820 ft
Kendall R.S. 43 in 7740 ft
Snow Depth Reports — Snow Depth Map
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Source: FWIX
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Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Riverton 40 °F Overcast 1:53 PM MST
Lander 41 °F Clear 1:53 PM MST
South Pass 30 °F Overcast 1:55 PM MST
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Flight To ETA Status
No flights were found.
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Type Condition
Flight Rule: VFR (KRIW)
Wind Speed: 3.0 kts.
Wind Dir: 116° (ESE)
Ceiling: 6000 ft

METAR KRIW 132053Z AUTO 12003KT 10SM FEW043 SCT050 OVC060 04/M06 A2969 RMK AO2 SLP068 6//// T00441061 58014

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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 Chance of Rain, 65 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
Northern Trust Open 8:30 AM PST on February 16, 2012 Partly Cloudy, 65 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 65 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Riverton, WY 40.9 °F 41 °F 21 °F 45% ESE  at  2.0 mph - / hr 5405 ft 2:05 PM MST Normal  
APRSWXNET Riverton WY , Riverton, WY 43 °F 43 °F 22 °F 43% ESE  at  3 mph 0.00 in / hr 5406 ft 1:35 PM MST MADIS
HADS LITTLE WIND RIVER NEAR RIVERTON WY, Saint Stephens, WY 38 °F 38 °F - - North  at  - 0.00 in / hr 4900 ft 1:15 PM MST MADIS
HADS MIDDLE FORK POPO AGIE RIVER AT M WY, Lander, WY - - - - North  at  - 0.00 in / hr 5479 ft 1:00 PM MST MADIS
Shoshoni, WY 42.3 °F 42 °F 24 °F 47% NNE  at  0.0 mph 0.00 in / hr 5025 ft 2:00 PM MST Normal  
APRSWXNET Sinks Canyon Center WY , Lander, WY 39 °F 39 °F 21 °F 49% NNW  at  0 mph 0.00 in / hr 5807 ft 1:49 PM MST MADIS
HADS MIDDLE FORK POPO AGIE RIVER NEAR WY, Lander, WY - - - - North  at  - 0.00 in / hr 6555 ft 1:15 PM MST MADIS
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