Riverton, WY

1:07 AM MST on February 12, 2012 (GMT -0700)
Elev: 5410 ft
Lon: 108.4° W
Lat: 43.1° N
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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.
Riverton Weather at a Glance
Updated 1:05 AM MST
Weather Station - report
Elevation
5405 ft
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Now
Overcast
Overcast
Temperature
22.3 °F
Feels Like 22 °F
Wind(mph)
1.0
Sunrise / Set
7:16 AM
5:40 PM
Moon
Waning Gibbous
Tonight
Mostly Cloudy 18 °F
Mostly Cloudy
Sunday
Partly Cloudy 36 °F
Partly Cloudy
Sunday Night
Mostly Cloudy 20 °F
Mostly Cloudy
Monday
Partly Cloudy 38 | 20 °F
Partly Cloudy
Tuesday
Partly Cloudy 32 | 18 °F
Partly Cloudy
Wednesday
Partly Cloudy 34 | 16 °F
Partly Cloudy
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.19 in
Visibility
10.0 miles
Clouds
Overcast 1400 ft
Moisture
Humidity
74%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KRIW 120753Z AUTO 00000KT 10SM OVC014 M05/M10 A2996 RMK AO2 SLP183 T10501100
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Weather Radio
Temperature
Windchill
22 °F
Dew Point
15 °F
Wind
Speed / Dir
1.0 mph from NE
Wind Gust
Health
UV
0.0 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
Sunday
cloudy Mostly cloudy. Highs 33 to 37.
Sunday Night
nt_cloudy Mostly cloudy. Lows 20 to 23.
Monday
cloudy Mostly cloudy. Highs 35 to 39.
Monday Night
nt_partlycloudy Partly 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 in the lower to mid 30s.
Tuesday Night
nt_chancesnow Partly cloudy with a 20 percent chance of snow. Lows 15 to 19.
Wednesday
partlycloudy Partly cloudy in the morning then clearing. Highs in the lower to mid 30s.
Wednesday Night
nt_sunny Mostly clear. Lows 12 to 16.
Thursday
partlycloudy Mostly sunny. Highs 33 to 38.
Thursday Night
nt_sunny Mostly clear. Lows 14 to 18.
Friday
partlycloudy Mostly sunny. Highs in the mid 30s to lower 40s.
Friday Night
nt_sunny Mostly clear. Lows 16 to 20.
Saturday
partlycloudy Mostly sunny in the morning then becoming partly cloudy. Highs in the 30s.
Source: NWS at 8:21 PM MST on February 11, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 82501
Sunday, 12
Partly Cloudy
36 | 20 °F
Partly Cloudy
Chance of
Precipitation
10%
Monday, 13
Partly Cloudy
38 | 20 °F
Partly Cloudy
Chance of
Precipitation
10%
Tuesday, 14
Partly Cloudy
32 | 18 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Partly Cloudy
34 | 16 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Partly Cloudy
36 | 18 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 17
Clear
38 | 18 °F
Clear
Chance of
Precipitation
0%
Saturday, 18
Clear
36 | NA
Clear
Chance of
Precipitation
0%
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Rest of Tonight
nt_cloudy Cloudy. Lows 16 to 20.
Sunday
cloudy Mostly cloudy. Highs 33 to 37.
Sunday Night
nt_cloudy Mostly cloudy. Lows 20 to 23.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 13 29 | 19 32 | 20 24 | 17
Wind 1 mph East 1 mph South 2 mph East 2 mph SW
Humidity 81% 64% 60% 75%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 89% 61% 73% 81%
Conditions Mostly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
7:16 AM
5:40 PM
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Monday
cloudy Mostly cloudy. Highs 35 to 39.
Monday Night
nt_partlycloudy Partly cloudy. Lows 15 to 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 21 | 16 33 | 21 33 | 18 24 | 16
Wind 2 mph SSW 3 mph South 1 mph ESE 1 mph SW
Humidity 78% 61% 54% 73%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 70% 61% 52% 37%
Conditions Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:14 AM
5:41 PM
Source: NWS at 8:21 PM MST on February 11, 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 in the lower to mid 30s.
Tuesday Night
nt_chancesnow Partly cloudy with a 20 percent chance of snow. Lows 15 to 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 21 | 14 28 | 17 30 | 16 21 | 14
Wind 1 mph SSE 1 mph NE 2 mph NE 1 mph WSW
Humidity 75% 62% 55% 75%
Chance of Precip. 10% 10% 10% 20%
Cloud Cover 48% 65% 56% 42%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Chance of Snow
Sunrise & Sunset
7:13 AM
5:42 PM
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Wednesday
partlycloudy Partly cloudy in the morning then clearing. Highs in the lower to mid 30s.
Wednesday Night
nt_sunny Mostly clear. Lows 12 to 16.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 14 28 | 18 30 | 16 20 | 13
Wind 1 mph SSW 1 mph SE 2 mph SSE 2 mph WSW
Humidity 75% 63% 55% 73%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 42% 38% 35% 35%
Conditions Chance of Snow Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:11 AM
5:44 PM
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Thursday
partlycloudy Mostly sunny. Highs 33 to 38.
Thursday Night
nt_sunny Mostly clear. Lows 14 to 18.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 12 28 | 18 32 | 16 22 | 13
Wind 2 mph WSW 1 mph SSW 3 mph SSW 5 mph SSW
Humidity 72% 65% 51% 70%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 26% 25% 19% 21%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
7:10 AM
5:45 PM
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Friday
partlycloudy Mostly sunny. Highs in the mid 30s to lower 40s.
Friday Night
nt_sunny Mostly clear. Lows 16 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 12 30 | 18 34 | 16 23 | 13
Wind 5 mph SW 4 mph South 5 mph SSW 2 mph SSW
Humidity 66% 57% 47% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 15% 22% 30% 21%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
7:10 AM
5:45 PM
Source: NWS at 8:21 PM MST on February 11, 2012
Regional Forecast for Wind River Basin
Saturday
partlycloudy Mostly sunny in the morning then becoming partly cloudy. Highs in the 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 12 30 | 16 34 | 16 23 | 13
Wind 5 mph SSW 7 mph SSW 5 mph SSW 2 mph SSW
Humidity 66% 58% 47% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 19% 15% 30% 21%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
7:10 AM
5:45 PM
BestForecast (what's this?)
Nearby
History & Almanac
February 12, 2012 Max Temp Min Temp
Normal (KRIW) - -
Record (KRIW) 48 °F (2005) -12 °F (2004)
Yesterday 26 °F 17 °F
Yesterday's Heating Degree Days: 43
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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 7:16 AM MST 5:40 PM MST
Civil Twilight 6:46 AM MST 6:09 PM MST
Nautical Twilight 6:13 AM MST 6:43 PM MST
Astronomical Twilight 5:40 AM MST 7:16 PM MST
Moon 11:54 PM MST 9:25 AM MST
Length Of Visible Light 11h 22m
Length of Day
10h 24m
Tomorrow will be 2m 42s longer.
Waning Gibbous, 76% 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
28 °F
Jackson
24 °F
Rock Springs
24 °F
Big Piney
24 °F
Pinedale
23 °F
Lander
8 °F
Worland
12 °F
Cody
14 °F
Elk Mountain
17 °F
Thermopolis
23 °F
Lander
Source: NWS
Snow Depth
Station Depth Elevation
Townsend Creek 30 in 8700 ft
Big Sandy Opening 38 in 9080 ft
Gunsight Pass 38 in 9820 ft
Kendall R.S. 43 in 7740 ft
Gros Ventre Summit 31 in 8750 ft
WunderPhotos®
Snow Storm
Arctic Front Roars in
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1,456,788 photos uploaded!
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News

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Source: FWIX
Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Riverton 23 °F Overcast 12:53 AM MST
Thermopolis 18 °F Light Snow 1:15 AM MST
Lander 23 °F Overcast 12:53 AM MST
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: MVFR (KRIW)
Wind Speed: 0.0 kts.
Wind Dir: 38° (NE)
Ceiling: 1400 ft

METAR KRIW 120753Z AUTO 00000KT 10SM OVC014 M05/M10 A2996 RMK AO2 SLP183 T10501100

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
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Riverton, WY 22.3 °F 22 °F 15 °F 74% NE  at  1.0 mph - / hr 5405 ft 1:05 AM MST Normal  
APRSWXNET Riverton WY , Riverton, WY 22 °F 22 °F 14 °F 72% NE  at  1 mph 0.00 in / hr 5406 ft 12:35 AM MST MADIS
Shoshoni, WY 24.4 °F 24 °F 17 °F 74% South  at  0.0 mph 0.00 in / hr 5025 ft 1:00 AM MST Normal  
HADS LITTLE WIND RIVER NEAR RIVERTON WY, Saint Stephens, WY 23 °F 23 °F - - North  at  - 0.00 in / hr 4900 ft 12:15 AM MST MADIS
HADS BOYSEN WEATHER STATION NEAR SHOS WY, Shoshoni, WY 25 °F 25 °F - - South  at  0 mph 0.00 in / hr 4709 ft 12:30 AM MST MADIS
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Local Storm Report


02/11/2012 1105 am

Alpine, Lincoln County.

Snow m4.00 inches, reported by trained spotter.





02/11/2012 1116 am

5 miles NNE of Thayne, Lincoln County.

Snow m2.00 inches, reported by cocorahsspotterc.





02/11/2012 1117 am

5 miles SSE of Smoot, Lincoln County.

Snow m1.00 inches, reported by cocorahsspotterc.