Alert archive / Wyoming / Wind Chill Warnings in 2021
Wind Chill Warning 1, NWS Riverton, WY
NWS Riverton, WY issued this wind chill warning at Feb 13, 2021, 2:43 AM MST for 4 counties in Wyoming. It was in force for 32 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 13, 2021, 2:43 AM MST (09:43 UTC)
- Expired
- Feb 14, 2021, 11:00 AM MST
- In force
- 32 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Johnson County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 63 km from the middle of the area, began a volume at 09:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 14, 8:00 AM MST | SNOW 3 | 4 Wnw Little Medicine S, WY | LA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS 0.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 30 TO 1. ACCUMULATION WAS OVER PAST 63 HOURS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 9.7 hours before the alert went out and 57 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 380 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
628 WWUS45 KRIW 130943 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 243 AM MST Sat Feb 13 2021 ...Significant Snow West and South and Dangerous Wind Chills East... .A quick moving system will result in another round of significant snow over western and southern areas today into this evening. An Arctic air mass over the east and south combined with breezy winds will result in dangerous wind chills today into Sunday. Also breezy winds will result in areas of blowing snow especially over the south tonight. WYZ011-019-020-022-132200- /O.NEW.KRIW.WC.W.0001.210213T0943Z-210214T1800Z/ Southeast Johnson County-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Kaycee, Jeffrey City, and Casper 243 AM MST Sat Feb 13 2021 ...WIND CHILL WARNING IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Dangerously cold wind chills. Wind chills between 25 and 35 below zero. North to northwest winds will pick up around noon and remain breezy through tonight. An inch or two of snow is also expected today. * WHERE...Southern Johnson County, Green Mountains and Rattlesnake Range, and Natrona County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ012-132200- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Teton and Gros Ventre Mountains- 243 AM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow and areas of blowing snow. Additional snow accumulations of 4 to 8 inches. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be hazardous at times. These conditions will impact commutes, especially over Teton and Togwotee Passes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather and severely reduced visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ013-023-132200- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Jackson Hole-Star Valley- Including the cities of Jackson, Afton, Alpine, Star Valley Ranch, and Thayne 243 AM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. Additional snow accumulations of 2 to 4 inches. * WHERE...Star Valley and Jackson Hole. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult at times due to slick roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ024-132200- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Salt River and Wyoming Ranges- 243 AM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow and areas of blowing snow. Additional snow accumulations of 3 to 6 inches. * WHERE...Salt River and Wyoming Ranges. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult on Salt River Pass. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ010-132200- /O.NEW.KRIW.WC.Y.0002.210213T0943Z-210214T1800Z/ Northeast Johnson County- Including the city of Buffalo 243 AM MST Sat Feb 13 2021 ...WIND CHILL ADVISORY IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Very cold wind chills. Wind chills between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ WYZ028>030-132200- /O.EXB.KRIW.WW.Y.0011.210213T1200Z-210214T1200Z/ Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Rock Springs, Green River, and Wamsutter 243 AM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow and areas of blowing snow. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 40 mph. * WHERE...Sweetwater County. * WHEN...Until 5 AM MST Sunday. The heaviest snow will occur today, followed by significant blowing snow tonight. * IMPACTS...Plan on slippery road conditions including along Interstate 80. Dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends and relatives. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ027-132200- /O.EXB.KRIW.WW.Y.0011.210213T1200Z-210214T1200Z/ South Lincoln County- Including the cities of Kemmerer and Cokeville 243 AM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow. Total snow accumulations of 2 to 4 inches. * WHERE...South Lincoln County. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ001-002-132200- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Yellowstone National Park-Absaroka Mountains- Including the cities of Lake, Mammoth, and Old Faithful 243 AM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. Additional snow accumulations of 2 to 4 inches. * WHERE...Absaroka Mountains and Yellowstone National Park. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be very difficult, especially along US 14, 16, and 20 from Wapiti to Pahaska west of Cody. Patchy blowing snow could significantly reduce visibility. Dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling and please share your travel plans with friends or relatives. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ025-132200- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Upper Green River Basin Foothills- Including the city of Pinedale 243 AM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. Additional snow accumulations of 2 to 4 inches. * WHERE...Upper Green River Basin Foothills. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be difficult with slick roads and poor visibility. The hazardous conditions could impact commuters traveling on US 189 and 191 between the Daniel and Hoback Junction. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ014-132200- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Wind River Mountains West- 243 AM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow with areas of blowing snow. Additional snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph. * WHERE...Wind River Mountains West. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel could be hazardous at times due to slick roads and poor visibility, especially over South Pass. Cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Team Riverton/21
5 follow-up statements
552 WWUS45 KRIW 132042 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 142 PM MST Sat Feb 13 2021 ...Significant Snow West and South, and Dangerous Wind Chills East... .A quick moving system will result in another round of significant snow over western and southern areas today into this evening. An Arctic air mass over the east and south combined with breezy winds will result in dangerous wind chills today into Sunday. Also breezy winds will result in areas of blowing snow especially over the south tonight. WYZ012-140600- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Teton and Gros Ventre Mountains- 142 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. New snow accumulations of 3 to 6 inches. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be hazardous at times. These conditions will impact commutes, especially over Teton and Togwotee Passes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather and severely reduced visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ013-023-140600- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Jackson Hole-Star Valley- Including the cities of Jackson, Afton, Alpine, Star Valley Ranch, and Thayne 142 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. New snowfall of 1 to 2 inches in the Jackson Valley and 2 to 3 inches in the Star Valley. * WHERE...Star Valley and Jackson Hole. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be difficult at times due to slick roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ024-140600- /O.CON.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Salt River and Wyoming Ranges- 142 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow and areas of blowing snow. Additional snowfall of 2 to 5 inches. * WHERE...Salt River and Wyoming Ranges. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be difficult on Salt River Pass. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ011-019-020-022-140700- /O.CON.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ Southeast Johnson County-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Kaycee, Jeffrey City, and Casper 142 PM MST Sat Feb 13 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Dangerously cold wind chills. Wind chills between 25 and 35 below zero. North to northeast wind of 15 to 25 mph will occur through tonight. An inch or two of snow is also expected through tonight. * WHERE...Southern Johnson County, Green Mountains and Rattlesnake Range, and Natrona County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ001-002-140600- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Yellowstone National Park-Absaroka Mountains- Including the cities of Lake, Mammoth, and Old Faithful 142 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. New snow accumulations of 1 to 2 inches in places. * WHERE...Absaroka Mountains and Yellowstone National Park. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be very difficult, especially along US 14, 16, and 20 from Wapiti to Pahaska west of Cody. Patchy blowing snow could significantly reduce visibility. Dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling and please share your travel plans with friends or relatives. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ025-140600- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Upper Green River Basin Foothills- Including the city of Pinedale 142 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow. Additional snow accumulations of 1 to 2 inches. * WHERE...Upper Green River Basin Foothills. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be difficult with slick roads and poor visibility. The hazardous conditions could impact commuters traveling on US 189 and 191 between the Daniel and Hoback Junction. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ014-140600- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Wind River Mountains West- 142 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Periods of snow with areas of blowing snow. Additional snow accumulations of 2 to 3 inches. Winds gusting as high as 40 mph. * WHERE...Wind River Mountains West. * WHEN...Until 11 PM MST. * IMPACTS...Travel could be hazardous at times due to slick roads and poor visibility, especially over South Pass. Cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Periods of whiteout conditions will be likely in the backcountry and disorientation will be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends or relatives. Please monitor the Bridger-Teton Avalanche Center at JHAVALANCHE.ORG, if your plans include travel into the back country. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ028>030-140700- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Rock Springs, Green River, and Wamsutter 142 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow and areas of blowing snow. Total snow accumulations of 2 to 4 inches. Northeast wind gusting 25 to 40 mph. * WHERE...Sweetwater County. * WHEN...Until 5 AM MST Sunday. The heaviest snow will occur until mid evening, followed by significant blowing snow tonight. * IMPACTS...Plan on slippery road conditions including along Interstate 80. Dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends and relatives. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ027-140700- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ South Lincoln County- Including the cities of Kemmerer and Cokeville 142 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow. Total snow accumulations of 2 to 4 inches. * WHERE...South Lincoln County. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ010-140700- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210214T1800Z/ Northeast Johnson County- Including the city of Buffalo 142 PM MST Sat Feb 13 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Very cold wind chills. Wind chills between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ For more information from the National Weather Service visit http://weather.gov/riw
840 WWUS45 KRIW 140600 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1100 PM MST Sat Feb 13 2021 ...Dangerous Wind Chills will be possible through Sunday morning over the South and East... .An Arctic air mass over the east and south, combined with breezy winds, will result in dangerous wind chills tonight into Sunday. Also breezy winds will result in areas of blowing snow, especially over the south, tonight. WYZ012-140700- /O.EXP.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Teton and Gros Ventre Mountains- 1100 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ013-023-140700- /O.EXP.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Jackson Hole-Star Valley- Including the cities of Jackson, Afton, Alpine, Star Valley Ranch, and Thayne 1100 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ024-140700- /O.EXP.KRIW.WS.W.0003.000000T0000Z-210214T0600Z/ Salt River and Wyoming Ranges- 1100 PM MST Sat Feb 13 2021 ...WINTER STORM WARNING WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ001-002-140700- /O.EXP.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Yellowstone National Park-Absaroka Mountains- Including the cities of Lake, Mammoth, and Old Faithful 1100 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ025-140700- /O.EXP.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Upper Green River Basin Foothills- Including the city of Pinedale 1100 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ014-140700- /O.EXP.KRIW.WW.Y.0011.000000T0000Z-210214T0600Z/ Wind River Mountains West- 1100 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 PM MST THIS EVENING... Snow has primarily ended across the area. Any additional snow will be very light. $$ WYZ011-019-020-022-141800- /O.CON.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ Southeast Johnson County-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Kaycee, Jeffrey City, and Casper 1100 PM MST Sat Feb 13 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Dangerously cold wind chills. Wind chills between 25 and 35 below zero. North to northeast wind of 15 to 25 mph will occur through tonight. An inch or two of snow is also expected through tonight. * WHERE...Southern Johnson County, Green Mountains and Rattlesnake Range, and Natrona County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ028>030-141200- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Rock Springs, Green River, and Wamsutter 1100 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow and areas of blowing snow. Total snow accumulations of 2 to 4 inches. Northeast wind gusting 25 to 40 mph. * WHERE...Sweetwater County. * WHEN...Until 5 AM MST Sunday. The heaviest snow will occur until mid evening, followed by significant blowing snow tonight. * IMPACTS...Plan on slippery road conditions including along Interstate 80. Dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please share your travel plans with friends and relatives. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ027-141200- /O.CON.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ South Lincoln County- Including the cities of Kemmerer and Cokeville 1100 PM MST Sat Feb 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Periods of snow. Total snow accumulations of 2 to 4 inches. * WHERE...South Lincoln County. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ010-141800- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210214T1800Z/ Northeast Johnson County- Including the city of Buffalo 1100 PM MST Sat Feb 13 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Very cold wind chills. Wind chills between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ For more information from the National Weather Service visit http://weather.gov/riw
467 WWUS45 KRIW 140848 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 148 AM MST Sun Feb 14 2021 ...Dangerous Wind Chills East and South... .An Arctic air mass over the east and south, combined with breezy winds, will result in dangerous wind chills especially this morning. WYZ011-142300- /O.CAN.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ /O.EXB.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Southeast Johnson County- Including the city of Kaycee 148 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY IN EFFECT UNTIL 7 PM MST THIS EVENING... ...WIND CHILL WARNING IS CANCELLED... * WHAT...Very cold wind chills. Wind chills between 20 below and 30 below zero. * WHERE...Southeast Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 to 30 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ WYZ030-141800- /O.CAN.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ /O.EXA.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ East Sweetwater County- Including the city of Wamsutter 148 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Dangerously cold wind chills. Wind chills between 30 below and 40 below zero. * WHERE...East Sweetwater County. * WHEN...Until 11 AM MST this morning. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ027>029-141000- /O.CAN.KRIW.WW.Y.0011.000000T0000Z-210214T1200Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- Including the cities of Kemmerer, Cokeville, Rock Springs, and Green River 148 AM MST Sun Feb 14 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Although very light snow remains possible early this morning, additional snow accumulations will be half an inch or less. Thus the winter weather advisory is cancelled. $$ WYZ019-020-022-141800- /O.CON.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 148 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Dangerously cold wind chills. Wind chills between 20 and 35 below zero. * WHERE...Green Mountains and Rattlesnake Range, and Natrona County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 to 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ010-142300- /O.EXT.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Northeast Johnson County- Including the city of Buffalo 148 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Very cold wind chills. Wind chills between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ 21
844 WWUS45 KRIW 141126 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 426 AM MST Sun Feb 14 2021 ...Dangerous Wind Chills East and South... .An Arctic air mass over the east and south, combined with breezy winds, will result in dangerous wind chills especially this morning. WYZ019-020-022-141800- /O.CON.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 426 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Dangerously cold wind chills. Wind chills between 20 and 35 below zero. * WHERE...Green Mountains and Rattlesnake Range, and Natrona County. * WHEN...Until 11 AM MST Sunday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 to 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ030-141800- /O.CON.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ East Sweetwater County- Including the city of Wamsutter 426 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Dangerously cold wind chills. Wind chills between 30 below and 40 below zero. * WHERE...East Sweetwater County. * WHEN...Until 11 AM MST this morning. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves, and try to stay out of the wind. && $$ WYZ010-142200- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Northeast Johnson County- Including the city of Buffalo 426 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Very cold wind chills. Wind chills between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ WYZ011-142200- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Southeast Johnson County- Including the city of Kaycee 426 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Very cold wind chills. Wind chills between 20 below and 30 below zero. * WHERE...Southeast Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 to 30 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ 21
814 WWUS45 KRIW 141747 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1047 AM MST Sun Feb 14 2021 ...Dangerous Wind Chills This Afternoon... .An Arctic air mass over the east and south, combined with breezy winds, will result in dangerous wind chills especially this morning. WYZ019-020-022-141900- /O.EXP.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 1047 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... Wind chill values of 10 to 20 degrees below zero will still occur this afternoon in places. However, the wind chill values of 30 to 40 below zero will no longer occur and thus the wind chill warning will be allowed to expire at 11 AM. $$ WYZ030-141900- /O.EXP.KRIW.WC.W.0001.000000T0000Z-210214T1800Z/ East Sweetwater County- Including the city of Wamsutter 1047 AM MST Sun Feb 14 2021 ...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... Wind chill values of 15 to 25 degrees below zero will still occur this afternoon in places. However, widespread wind chill values of 30 to 40 below zero will no longer occur, and thus the wind chill warning will be allowed to expire at 11 AM. $$ WYZ010-150200- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Northeast Johnson County- Including the city of Buffalo 1047 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Wind chill values between 20 and 30 below zero. * WHERE...Northern Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves and try to stay out of the wind. && $$ WYZ011-150200- /O.CON.KRIW.WC.Y.0002.000000T0000Z-210215T0200Z/ Southeast Johnson County- Including the city of Kaycee 1047 AM MST Sun Feb 14 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Wind chill values between 20 below and 30 below zero. * WHERE...Southeast Johnson County. * WHEN...Until 7 PM MST this evening. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 20 to 30 minutes. * ADDITIONAL DETAILS...The most susceptible parts of the body to frostbite are the extremities such as fingers, toes and the tip of the nose. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ For more information from the National Weather Service visit http://weather.gov/riw
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 2:43 AM MST | Wind Chill Advisory | RIW | Johnson | 40 hr |
Nearby
Wind Chill Warnings in Wyoming, 2021Every wind chill warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.