Alert archive / Colorado / Winter Storm Warnings in 2021
Winter Storm Warning 7, NWS Grand Junction, CO
NWS Grand Junction, CO issued this winter storm warning at Dec 13, 2021, 2:31 PM MST for 7 counties in Colorado; 4 counties in Utah. It took effect at Dec 14, 2021, 5:00 PM MST. It was in force for 21 hr. 41 reports 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
- Dec 13, 2021, 2:31 PM MST (21:31 UTC)
- In effect from
- Dec 14, 2021, 5:00 PM MST
- Expired
- Dec 15, 2021, 1:37 PM MST
- In force
- 21 hr
- Issued by
- NWS Grand Junction, CO
Counties Archuleta County, CO, Dolores County, CO, Hinsdale County, CO, La Plata County, CO, Montezuma County, CO, San Juan County, CO, San Miguel County, CO, Daggett County, UT, Grand County, UT, San Juan County, UT, Uintah County, UT
The radar
The Grand Junction radar (KGJX), 94 km from the middle of the area, began a volume at 21:35 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 |
|---|---|---|---|
| Dec 15, 6:30 AM MST | SNOW 1 | 7 Wnw Dove Creek, CO | CO-OP OBSERVER STATION NTDC2 3.7 E LOCKERBY. |
| Dec 15, 7:00 AM MST | SNOW 1.2 | 4 N Tiffany, CO | CO-OP OBSERVER STATION IGCC2 IGNACIO 8E. |
| Dec 15, 7:00 AM MST | SNOW 1.3 | 10 Wsw Cahone, CO | COCORAHS STATION CO-DR-3 DOVE CREEK 12.4SSW. |
| Dec 15, 7:00 AM MST | SNOW 1.4 | 2 Nw Cortez, CO | COCORAHS STATION CO-MZ-43 CORTEZ 2.3NW. |
| Dec 15, 7:00 AM MST | SNOW 1.5 | 4 Ssw Dolores, CO | COCORAHS STATION CO-MZ-58 DOLORES 4.0SSW. |
| Dec 15, 7:00 AM MST | SNOW 1.6 | 1 N Oxford, CO | COCORAHS STATION CO-LP-48 IGNACIO 6.9NW. |
| Dec 15, 7:00 AM MST | SNOW 1.6 | 1 Sw Cortez, CO | COCORAHS STATION CO-MZ-34 CORTEZ 1.2SW. |
| Dec 15, 7:00 AM MST | SNOW 1.7 | 4 S Vallecito, CO | COCORAHS STATION CO-LP-98 BAYFIELD 6.2 N. |
| Dec 15, 7:00 AM MST | SNOW 1.7 | 5 S Vallecito, CO | CO-OP OBSERVER STATION BYFC2 BAYFIELD 7N. |
| Dec 15, 7:00 AM MST | SNOW 2 | 5 S Vallecito, CO | COCORAHS STATION CO-LP-106 BAYFIELD 5.5 N. |
| Dec 15, 7:00 AM MST | SNOW 2 | 7 Ese Mancos, CO | COCORAHS STATION CO-MZ-77 MANCOS 6.7 ESE. |
| Dec 15, 7:00 AM MST | SNOW 2.3 | 1 Nw Durango, CO | COCORAHS STATION CO-LP-111 DURANGO 1.4 NW. |
| Dec 15, 7:00 AM MST | SNOW 2.3 | 1 Ssw Durango, CO | COCORAHS STATION CO-LP-22 DURANGO 0.8SSW. |
| Dec 15, 7:00 AM MST | SNOW 2.5 | 7 Nw Pagosa Springs, CO | COCORAHS STATION CO-AU-45 PAGOSA SPRINGS 7.2 NW. |
| Dec 15, 7:00 AM MST | SNOW 2.8 | 4 Ene Dolores, CO | COCORAHS STATION CO-MZ-30 DOLORES 4.8ENE. |
| Dec 15, 7:00 AM MST | SNOW 3 | 18 Ese Manila, UT | COCORAHS STATION UT-DG-2 DUTCH JOHN 0.1 SE. |
| Dec 15, 7:00 AM MST | SNOW 3.5 | 5 Wsw Durango, CO | COCORAHS STATION CO-LP-61 DURANGO 4.8WSW. |
| Dec 15, 7:00 AM MST | SNOW 3.6 | 5 Se Hesperus, CO | COCORAHS STATION CO-LP-72 HESPERUS 4.9SE. |
| Dec 15, 7:00 AM MST | SNOW 4 | 5 S Vallecito, CO | COCORAHS STATION CO-LP-113 BAYFIELD 5.2 N. |
| Dec 15, 7:00 AM MST | SNOW 4 | 6 Sse Pagosa Springs, CO | COCORAHS STATION CO-AU-37 PAGOSA SPRINGS 5.8 SSE. |
| Dec 15, 7:20 AM MST | SNOW 1.5 | 4 Nne Cortez, CO | COCORAHS STATION CO-MZ-81 DOLORES 5.3 SSW. |
| Dec 15, 8:00 AM MST | SNOW 1 | 5 Ne Canyonlands Np, UT | CO-OP OBSERVER STATION CNYU1 CANYONLANDS THE NECK. |
| Dec 15, 8:00 AM MST | SNOW 1.5 | 4 Nw Redmesa, CO | COCORAHS STATION CO-LP-70 REDMESA 4.2NW. |
| Dec 15, 8:00 AM MST | SNOW 1.7 | 1 Wsw Cortez, CO | CO-OP OBSERVER STATION CTZC2 1.0 SW CORTEZ. |
| Dec 15, 8:00 AM MST | SNOW 2 | 5 E Pagosa Springs, CO | COCORAHS STATION CO-AU-49 PAGOSA SPRINGS 4.7 E. |
| Dec 15, 8:00 AM MST | SNOW 2 | 5 Wsw Arriola, CO | COCORAHS STATION CO-MZ-35 CORTEZ 10 WNW. |
| Dec 15, 8:00 AM MST | SNOW 2.9 | 2 Ssw Pagosa Springs, CO | COCORAHS STATION CO-AU-26 PAGOSA SPRINGS 1.6SSW. |
| Dec 15, 8:00 AM MST | SNOW 3 | 1 Ene Fall Creek, CO | COCORAHS STATION CO-SM-17 PLACERVILLE 3.6 E. |
| Dec 15, 8:00 AM MST | SNOW 3 | 8 Wnw Pagosa Springs, CO | COCORAHS STATION CO-AU-53 PAGOSA SPRINGS 8.5 WNW. |
| Dec 15, 8:00 AM MST | SNOW 4.8 | 3 W Pagosa Springs, CO | COCORAHS STATION CO-AU-54 PAGOSA SPRINGS 3.2 W. |
| Dec 15, 8:00 AM MST | SNOW 6 | 5 E Stoner, CO | COCORAHS STATION CO-MZ-71 DOLORES 16.8 ENE. |
| Dec 15, 8:30 AM MST | SNOW 1.2 | 2 Nw Falfa, CO | COCORAHS STATION CO-LP-121 DURANGO 6.0 SE. |
| Dec 15, 8:30 AM MST | SNOW 2.5 | 1 Sw Trimble, CO | COCORAHS STATION CO-LP-119 DURANGO 6.9 N. |
| Dec 15, 8:47 AM MST | SNOW 3 | 7 Ne Sawpit, CO | |
| Dec 15, 9:23 AM MST | HEAVY SNOW 8 | Coal Bank Pass, CO | 1.30 INCHES OF LIQUID EQUIVALENT. |
| Dec 15, 9:23 AM MST | HEAVY SNOW 8 | Molas Pass, CO | 1.10 INCHES OF LIQUID EQUIVALENT. |
| Dec 15, 9:24 AM MST | HEAVY SNOW 6 | 2 Ssw Telluride, CO | 0.70 INCHES OF LIQUID EQUIVALENT. |
| Dec 15, 9:30 AM MST | SNOW 4 | 3 S Vallecito, CO | COCORAHS STATION CO-LP-35 BAYFIELD 7.0N. |
| Dec 15, 10:44 AM MST | SNOW 2 | 2 Ssw Vernal, UT | |
| Dec 15, 10:48 AM MST | SNOW 1 | 7 Wnw Dove Creek, CO | 0.80 INCHES OF LIQUID. DRIFTING SNOW REPORTED. |
| Dec 15, 10:49 AM MST | SNOW 1 | 1 Ssw Durango, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 9.5 hours before the alert went out and 98 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
- 1744 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 453 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
725 WWUS45 KGJT 132131 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 231 PM MST Mon Dec 13 2021 COZ019-140700- /O.UPG.KGJT.WS.A.0006.211214T2100Z-211216T0000Z/ /O.NEW.KGJT.WS.W.0007.211215T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 231 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING IN EFFECT FROM 5 PM TUESDAY TO 5 PM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 16 inches with locally higher amounts possible. Winds gusting as high as 80 mph near and above treeline. * WHERE...Southwest San Juan Mountains. * WHEN...From 5 PM Tuesday to 5 PM MST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-140700- /O.NEW.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 231 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING IN EFFECT FROM 5 PM TUESDAY TO 11 AM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches with locally higher amounts possible. Winds gusting as high as 60 mph near and above treeline. * WHERE...Eastern Uinta Mountains. * WHEN...From 5 PM Tuesday to 11 AM MST Wednesday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-140700- /O.NEW.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 231 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING IN EFFECT FROM 5 PM TUESDAY TO 11 AM MST WEDNESDAY ABOVE 8000 FEET... * WHAT...Heavy snow expected above 8000 feet. Total snow accumulations of 8 to 14 inches with locally higher amounts possible. Winds gusting as high as 80 mph near and above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...From 5 PM Tuesday to 11 AM MST Wednesday. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-140700- /O.NEW.KGJT.WW.Y.0034.211215T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 231 PM MST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM TUESDAY TO 5 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Uncompahgre Plateau and Dallas Divide and Northwest San Juan Mountains. * WHEN...From 5 PM Tuesday to 5 PM MST Wednesday. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
8 follow-up statements
103 WWUS45 KGJT 140641 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 1141 PM MST Mon Dec 13 2021 COZ019-141445- /O.CON.KGJT.WS.W.0007.211215T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 1141 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 5 PM MST WEDNESDAY... * WHAT...Heavy snow and strong winds expected. Total snow accumulations of 8 to 16 inches with locally higher amounts possible. Winds gusting over 70 mph near and above treeline early Wednesday morning. * WHERE...Southwest San Juan Mountains. * WHEN...From 5 PM Tuesday to 5 PM MST Wednesday. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow significantly reducing visibility. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-141445- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 1141 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 11 AM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 60 mph near and above treeline early Wednesday morning. * WHERE...Eastern Uinta Mountains. * WHEN...From 5 PM Tuesday to 11 AM MST Wednesday. * IMPACTS...Travel will be difficult. Patchy blowing snow could significantly reduce visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-141445- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 1141 PM MST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 11 AM MST WEDNESDAY ABOVE 8000 FEET... * WHAT...Heavy snow expected above 8000 feet. Total snow accumulations of 8 to 14 inches. Winds gusting over 70 mph early Wednesday morning near above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...From 5 PM Tuesday to 11 AM MST Wednesday. * IMPACTS...Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-141445- /O.CON.KGJT.WW.Y.0034.211215T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 1141 PM MST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM TUESDAY TO 5 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Uncompahgre Plateau and Dallas Divide and Northwest San Juan Mountains. * WHEN...From 5 PM Tuesday to 5 PM MST Wednesday. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
169 WWUS45 KGJT 141115 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 415 AM MST Tue Dec 14 2021 COZ019-141915- /O.CON.KGJT.WS.W.0007.211215T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 415 AM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST WEDNESDAY... * WHAT...Heavy snow and strong winds expected. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 70 mph near and above treeline can be expected by early Wednesday morning. * WHERE...Southwest San Juan Mountains. * WHEN...Light snow will be possible through the day with minimal impacts. Winds and snow will increase through the evening ahead of an approaching cold front with the highest gusts and near whiteout conditions expected after midnight. * IMPACTS....Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-141915- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 415 AM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 60 mph near and above treeline early Wednesday morning. * WHERE...Eastern Uinta Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Travel will be difficult at times. Patchy blowing snow could significantly reduce visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-141915- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 415 AM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY ABOVE 8000 FEET... * WHAT...Heavy snow expected above 8000 feet. Total snow accumulations of 8 to 14 inches. Winds gusting over 70 mph early Wednesday morning near and above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ022-023-141915- /O.EXB.KGJT.WW.Y.0034.211215T0600Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 415 AM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST WEDNESDAY... * WHAT...Snow expected to increase in intensity early Wednesday morning with the passage of a strong cold front. Total snow accumulations of 1 to 3 inches with higher amounts near the foothills. Winds gusting as high as 55 mph will create near whiteout conditions with the cold frontal passage. * WHERE...Animas River Basin and San Juan River Basin. * WHEN...A cold front will arrive to eastern Highway 160 corridor during the pre-dawn hours. Strong wind gusts and a change over to moderate to heavy snow will result through the morning hours. * IMPACTS...Strong winds...blowing snow and freezing roadways will lead to especially hazardous driving conditions early Wednesday. The hazardous conditions will likely impact the morning commute. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ004-009-010-012-013-141915- /O.EXB.KGJT.WW.Y.0034.211215T0600Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 415 AM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 PM MST WEDNESDAY ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 60 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...The heaviest snow and strongest winds will be during the early to mid morning hours on Wednesday...with snow lingering through the evening impacting mountain travel. * IMPACTS...Travel will become be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ COZ017-018-141915- /O.CON.KGJT.WW.Y.0034.211215T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 415 AM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...From 5 PM this evening to 5 PM MST Wednesday. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
383 WWUS45 KGJT 141930 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 1230 PM MST Tue Dec 14 2021 COZ019-150330- /O.CON.KGJT.WS.W.0007.211215T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 1230 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST WEDNESDAY... * WHAT...Heavy snow and strong winds expected. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 70 mph near and above treeline can be expected by early Wednesday morning. * WHERE...Southwest San Juan Mountains. * WHEN...Snow showers will continue through the afternoon with minimal impacts. Winds and snow will increase through the evening ahead of an approaching cold front with the highest gusts and near whiteout conditions between midnight and 6 am Wednesday. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-150330- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 1230 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 60 mph near and above treeline early Wednesday morning. * WHERE...Eastern Uinta Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Travel will be difficult at times. Patchy blowing snow could significantly reduce visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-150330- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 1230 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY ABOVE 8000 FEET... * WHAT...Heavy snow expected above 8000 feet. Total snow accumulations of 8 to 14 inches. Winds gusting over 70 mph early Wednesday morning near and above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-150330- /O.CON.KGJT.WW.Y.0034.211215T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 1230 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...Scattered light snow showers will continue this afternoon. Snow and wind will increase this evening, with highest winds and near whiteout conditions at times between midnight and 6 am Wednesday. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ022-023-150330- /O.CON.KGJT.WW.Y.0034.211215T0600Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 1230 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST WEDNESDAY... * WHAT...Snow expected to increase in intensity early Wednesday morning with the passage of a strong cold front. Total snow accumulations of 1 to 3 inches with higher amounts near the foothills. Winds gusting as high as 55 mph will create near whiteout conditions with the cold frontal passage. * WHERE...Animas River Basin and San Juan River Basin. * WHEN...A cold front will arrive to eastern Highway 160 corridor during the pre-dawn hours. Strong wind gusts and a change over to moderate to heavy snow will occur between 2 am and 6 am Wednesday, with light snow continuing through morning hours. * IMPACTS...Strong winds...blowing snow and freezing roadways will lead to especially hazardous driving conditions early Wednesday. The hazardous conditions will likely impact the morning commute. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ COZ004-009-010-012-013-150330- /O.CON.KGJT.WW.Y.0034.211215T0600Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 1230 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 8 PM MST WEDNESDAY ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 60 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...The heaviest snow and strongest winds will occur between 3 am and 6 am Wednesday...with snow showers continuing throughout the day and into the evening. * IMPACTS...Travel will become be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
566 WWUS45 KGJT 142237 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 337 PM MST Tue Dec 14 2021 COZ019-151200- /O.CON.KGJT.WS.W.0007.211215T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 337 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Heavy snow and strong winds expected. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 70 mph near and above treeline can be expected by early Wednesday morning. * WHERE...Southwest San Juan Mountains. * WHEN...Snow showers will continue through the afternoon with minimal impacts. Winds and snow will increase through the evening and overnight ahead of an approaching cold front with the highest gusts and near whiteout conditions between 2 and 6 am Wednesday. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-151200- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 337 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 60 mph near and above treeline early Wednesday morning. * WHERE...Eastern Uinta Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Travel will be difficult at times. Patchy blowing snow could significantly reduce visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-151200- /O.CON.KGJT.WS.W.0007.211215T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 337 PM MST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY ABOVE 8000 FEET... * WHAT...Heavy snow expected above 8000 feet. Total snow accumulations of 8 to 14 inches. Winds gusting over 70 mph early Wednesday morning near and above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...From 5 PM this evening to 11 AM MST Wednesday. * IMPACTS...Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-151200- /O.CON.KGJT.WW.Y.0034.211215T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 337 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...Scattered light snow showers will continue this evening. Snow and wind will increase overnight, with highest winds and near whiteout conditions at times between 2 and 6 am Wednesday. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ022-023-151200- /O.CON.KGJT.WW.Y.0034.211215T0600Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 337 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST WEDNESDAY... * WHAT...Snow expected to increase in intensity early Wednesday morning with the passage of a strong cold front. Total snow accumulations of 1 to 3 inches with higher amounts near the foothills. Winds gusting as high as 55 mph will create near whiteout conditions with the cold frontal passage. * WHERE...Animas River Basin and San Juan River Basin. * WHEN...A cold front will arrive to eastern Highway 160 corridor during the pre-dawn hours. Strong wind gusts and a change over to moderate to heavy snow will occur between 2 am and 6 am Wednesday, with light snow continuing through the morning hours. * IMPACTS...Strong winds...blowing snow and freezing roadways will lead to especially hazardous driving conditions early Wednesday. The hazardous conditions will likely impact the morning commute. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ COZ004-009-010-012-013-151200- /O.CON.KGJT.WW.Y.0034.211215T0600Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 337 PM MST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 8 PM MST WEDNESDAY ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 60 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...The heaviest snow and strongest winds will occur between 3 am and 7 am Wednesday...with snow showers continuing throughout the day and into the evening. * IMPACTS...Travel will become be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
062 WWUS45 KGJT 151034 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 334 AM MST Wed Dec 15 2021 COZ019-160000- /O.CON.KGJT.WS.W.0007.000000T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 334 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Heavy snow and strong winds expected. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 70 mph near and above treeline can be expected through mid-morning. * WHERE...Southwest San Juan Mountains. * WHEN...Strong winds will die down through mid-morning while snow will continue. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ023-151800- /O.CON.KGJT.WS.W.0007.000000T0000Z-211215T1800Z/ Eastern Uinta Mountains- Including the cities of Manila and Dutch John 334 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Heavy snow. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 60 mph near and above treeline early this morning. * WHERE...Eastern Uinta Mountains. * WHEN...Through 11 AM MST today. * IMPACTS...Travel will be difficult at times. Patchy blowing snow could significantly reduce visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ UTZ028-151800- /O.CON.KGJT.WS.W.0007.000000T0000Z-211215T1800Z/ La Sal and Abajo Mountains- 334 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING ABOVE 8000 FEET... * WHAT...Heavy snow above 8000 feet. Total snow accumulations of 8 to 14 inches. Winds gusting over 70 mph early this morning near and above treeline. * WHERE...La Sal and Abajo Mountains. * WHEN...Through 11 AM MST Wednesday. * IMPACTS...Widespread blowing snow could significantly reduce visibility, especially on ridge tops. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-160000- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 334 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 70 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...Through 5PM this afternoon. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ022-023-151800- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 334 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Total snow accumulations of 1 to 3 inches with higher amounts near the foothills. Winds gusting as high as 55 mph will create near whiteout conditions with the cold frontal passage. * WHERE...Animas River Basin and San Juan River Basin. * WHEN...A cold front will arrive to eastern Highway 160 corridor during the pre-dawn hours. Strong wind gusts and a change over to moderate to heavy snow will occur before 6AM, with light snow continuing through the morning hours. * IMPACTS...Strong winds...blowing snow and freezing roadways will lead to especially hazardous driving conditions early Wednesday. The hazardous conditions will likely impact the morning commute. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ COZ004-009-010-012-013-160100- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 334 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 60 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...The heaviest snow and strongest winds will occur through 7AM Wednesday...with snow showers continuing throughout the day and into the evening. * IMPACTS...Travel will become be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
891 WWUS45 KGJT 151652 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 952 AM MST Wed Dec 15 2021 UTZ023-028-151800- /O.CAN.KGJT.WS.W.0007.000000T0000Z-211215T1800Z/ Eastern Uinta Mountains-La Sal and Abajo Mountains- 952 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING IS CANCELLED... Only scattered light snow showers can be expected the rest of the day. $$ COZ019-160000- /O.CON.KGJT.WS.W.0007.000000T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 952 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Heavy snow and strong winds. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 50 mph near and above treeline. * WHERE...Southwest San Juan Mountains. * WHEN...Heavy snow and strong winds will diminish through noon, but light to moderate snow will linger into the afternoon. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-160000- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 952 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 50 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...Through 5PM this afternoon. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ COZ022-023-151800- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 952 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Total snow accumulations of 1 to 3 inches with higher amounts near the foothills. Winds gusting as high as 35 mph. * WHERE...Animas River Basin and San Juan River Basin. * WHEN...Light snow and strong winds will diminish by midday. * IMPACTS...Strong winds...blowing snow and freezing roadways will lead to especially hazardous driving conditions on untreated roads. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ004-009-010-012-013-160100- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 952 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 50 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...Snow showers and gusty winds will continue throughout the day. * IMPACTS...Travel will be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
771 WWUS45 KGJT 151800 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 1100 AM MST Wed Dec 15 2021 COZ022-023-151900- /O.EXP.KGJT.WW.Y.0034.000000T0000Z-211215T1800Z/ Animas River Basin-San Juan River Basin- Including the cities of Durango, Bayfield, Ignacio, and Pagosa Springs 1100 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... Light snow will continue to taper off early this afternoon in places close to the mountains, but no additional impacts from light snow accumulation are expected. $$ COZ019-160000- /O.CON.KGJT.WS.W.0007.000000T0000Z-211216T0000Z/ Southwest San Juan Mountains- Including the cities of Silverton, Rico, and Hesperus 1100 AM MST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Heavy snow and strong winds. Total snow accumulations of 8 to 16 inches mainly above 8500 feet. Higher amounts possible on favored terrain. Winds gusting over 50 mph near and above treeline. * WHERE...Southwest San Juan Mountains. * WHEN...Heavy snow and strong winds will diminish through noon, but light to moderate snow will linger into the afternoon. * IMPACTS...Travel will be very difficult if not impossible due to blowing and drifting snow reducing visibility to near zero at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ017-018-160000- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- Including the cities of Ridgway, Glade Park, Telluride, Ouray, and Lake City 1100 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow. Total snow accumulations of 5 to 10 inches with locally higher amounts possible. Winds gusting as high as 50 mph near and above treeline. * WHERE...Northwest San Juan Mountains and Uncompahgre Plateau and Dallas Divide. * WHEN...Through 5PM this afternoon. * IMPACTS...Travel will be very difficult at times with blowing snow significantly reducing visibility at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ004-009-010-012-013-160200- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0300Z/ Elkhead and Park Mountains-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 1100 AM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING ABOVE 8500 FEET... * WHAT...Moderate to heavy snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 50 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...Snow showers and gusty winds will continue throughout the day. * IMPACTS...Travel will be very difficult. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
917 WWUS45 KGJT 152037 WSWGJT URGENT - WINTER WEATHER MESSAGE National Weather Service Grand Junction CO 137 PM MST Wed Dec 15 2021 COZ019-152145- /O.CAN.KGJT.WS.W.0007.000000T0000Z-211216T0000Z/ Southwest San Juan Mountains- 137 PM MST Wed Dec 15 2021 ...WINTER STORM WARNING IS CANCELLED... Heavy snow has ended. Scattered slight snow showers and areas of blowing snow are still possible through the afternoon. Be alert for changing road conditions. $$ COZ017-018-152145- /O.CAN.KGJT.WW.Y.0034.000000T0000Z-211216T0000Z/ Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains- 137 PM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Widespread snow has ended. Scattered slight snow showers and areas of blowing snow are still possible through the afternoon. Be alert for changing road conditions. $$ COZ009-152145- /O.CAN.KGJT.WW.Y.0034.000000T0000Z-211216T0300Z/ Grand and Battlement Mesas- 137 PM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Widespread snow has ended. Scattered slight snow showers and areas of blowing snow are still possible through the afternoon. Be alert for changing road conditions. $$ COZ004-010-012-013-160300- /O.CON.KGJT.WW.Y.0034.000000T0000Z-211216T0300Z/ Elkhead and Park Mountains- Gore and Elk Mountains/Central Mountain Valleys- West Elk and Sawatch Mountains-Flat Tops- Including the cities of Columbine, Vail, Crested Butte, Taylor Park, Buford, and Trappers Lake 137 PM MST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING ABOVE 8500 FEET... * WHAT...Light to moderate snow and blowing snow expected above 8500 feet. Total snow accumulations of 5 to 10 inches with locally higher amounts can be expected. Winds gusting as high as 50 mph near and above treeline will create near whiteout conditions. * WHERE...Elkhead and Park Mountains, Grand and Battlement Mesas, Gore and Elk Mountains/Central Mountain Valleys, West Elk and Sawatch Mountains and Flat Tops. * WHEN...Snow showers and gusty winds will continue throughout the day, tapering off from south to north this evening. * IMPACTS...Travel will be very difficult in places. Widespread blowing snow could significantly reduce visibility and lead to whiteout conditions at times. A detailed map of the snowfall can be found at: www.weather.gov/gjt/winter. 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. && $$ For more information from the National Weather Service visit http://weather.gov/gjt
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Junction, CO wrote its last area forecast discussion before this winter storm warning went out at Dec 13, 10:38 AM MST, 3 hours 53 minutes earlier.
Area forecast discussion, Dec 13, 10:38 AM MST, 3 hours 53 minutes before
Area Forecast Discussion
National Weather Service Grand Junction CO
1038 AM MST Mon Dec 13 2021
.SHORT TERM...(Today through Tuesday)
Issued at 416 AM MST Mon Dec 13 2021
The 13/00Z H500 hand analysis map is showing a large gyre of low
pressure across the majority of the northern half of the
continent. Over the next 24 hours...the troughing in the West
will be digging southward while the energy in the East lifts
northeast...leaving the Intermountain West in a tightening
Southwest flow pattern. This pattern shift will be crucial to
pulling in both a SubTropical and a remnant AR moisture source to
our area. Currently the main AR has stalled over the central Cali
coastline where another narrow band of moisture was merging with
it. A core of the jet will be emerging in the downstream portion
of the Pacific trough today with the deepening response showing up
nicely in the QG fields. The emergence of this jet over the Great
Basin late will pull some of the AR moisture along with it. There
will not be enough ascent to produce precipitation with this
feature but it will begin the top down saturation process and aid
in more efficient precipitation processes as the main ascent
arrives later Tuesday. 310-315K theta surfaces are showing a tap
of SubTrop moisture moving across the Desert SW today...arriving
to the 4 Corners early this evening. Again this will mainly be in
the form of high cloudiness but will have the same effect of
priming the upper layers ahead of the main storm system. Warm
advective...strong southerly flow can sometimes be under estimated
but it doesn't look like we will see precipitation of any
substance start to form until tomorrow afternoon. Persistent
upslope flow looks to get the orographic machine going over the
fertile crescent of the southwest San Juans by the afternoon as
conditional instability increases. The southerly flow will also
favor light precipitation forming over the Uinta Mountains late in
the day. So again the main challenge in the short term forecast
will center around temperatures. I got hammered on the high
temperature forecast yesterday over CAG DRO and GUC to name a
few...due either to lack of mixing or advection over a colder snow
pack. Will play persistence today and lower these areas some
below guidance as again mixing looks somewhat limited until
tomorrow. Cloudiness will help limited cooling tonight and looks
like the below zero readings should end over the high valleys. We
will be fighting mixing with high cloudiness tomorrow but the
strength of this system suggest we should be able to flush out
some of the cooler air in the valleys. So Tuesday looks to be the
warmest day in the upcoming forecast.
.LONG TERM...(Tuesday night through Sunday)
Issued at 416 AM MST Mon Dec 13 2021
A broad trough over the Western States will move east over the
Great Basin by Tuesday night. Southwest gradient winds will
increase over the area with strong gusty southwest winds over the
higher terrain which will eventually mix-out across valley
locations by Tuesday afternoon and continue Tuesday night. There
will be potential for 30 mph gusts or stronger over the lower 4
Corners valleys during the overnight hours with gusts well over 55
mph developing over southern mountains. Areal coverage and
intensity of precipitation will increase Tuesday night with the
best focus across the San Juan mountains during the evening hours
and across the remainder of the forecast area after midnight. Snow
levels across the south will be around 8500 feet late Tuesday and
drop to near valley floors by Wednesday morning as colder air
moves across the forecast area. The combination of the gusty winds
and periods of moderate to heavy snow have forced my hand to place
a Winter Storm Watch over the Southwest San Juans. Travel will
likely be impossible at times due to the snow and blowing snow
brining near whiteout conditions from Purg to Silverton. The
focus of snow will shift north across the central and northern
mountains of western Colorado on Wednesday as the storm system
moves east of the Rockies. There is a potential for 5-10" across
favored mountain locations with 8 to 14" amounts possible in the
Southwest San Juan mountains. Stay tuned to latest forecasts for
any potential winter weather highlights for this storm across
mountain locations. Consensus guidance is showing a weak
progressive storm pattern developing into the weekend with a
couple of weak shortwaves poised to move across the forecast area
with the best chance for light snow on Friday and Sunday.
Temperatures will remain near or below seasonal normals Wednesday
through the weekend.
&&
.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1038 AM MST Mon Dec 13 2021
VFR conditions and light winds will prevail for the next 24 hours.
Stronger winds above the lower inversions will strengthen,
leading to LLWS developing over the mountain terminals this
afternoon and persisting into morning hours on Tuesday.
&&
.GJT WATCHES/WARNINGS/ADVISORIES...
CO...Winter Storm Watch from Tuesday afternoon through Wednesday
afternoon for COZ019.
UT...None.
&&
SHORT TERM...15
LONG TERM...MPM/15
AVIATION...TGJTHazardous weather outlook, Dec 13, 4:34 AM MST, 9 hours 57 minutes before
Hazardous Weather Outlook National Weather Service Grand Junction CO 434 AM MST Mon Dec 13 2021 COZ001>014-017>023-UTZ022>025-027>029-141145- Lower Yampa River Basin-Central Yampa River Basin- Roan and Tavaputs Plateaus-Elkhead and Park Mountains- Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor- Central Colorado River Basin-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- Central Gunnison and Uncompahgre River Basin- West Elk and Sawatch Mountains-Flat Tops- Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains-Southwest San Juan Mountains- Paradox Valley/Lower Dolores River- Four Corners/Upper Dolores River-Animas River Basin- San Juan River Basin-Southeast Utah-Eastern Uinta Mountains- Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat- La Sal and Abajo Mountains-Canyonlands/Natural Bridges- 434 AM MST Mon Dec 13 2021 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Light snow will begin over the Uinta and San Juan mountains by Tuesday afternoon becoming more widespread and heavier over all the mountains Tuesday night into Wednesday. Snow will lower to mountain bases with lighter accumulations in most valley locations. Strong winds with this system will range from near 35 mph in the southern valleys to over 60 mph across the southern mountains. Impacts from snow and blowing snow will include hazardous driving conditions over the many of the mountain passes Tuesday night into Wednesday. Additional light snow is possible later in the week mainly over the northern mountains. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Local storm report, Dec 13, 2:06 PM MST, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
206 PM MST MON DEC 13 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0143 PM NON-TSTM WND GST 1 W DOUGLAS PASS 39.60N 108.82W
12/13/2021 M45 MPH GARFIELD CO MESONET
MESONET STATION CO098 139S034 DOUGLAS PASS.
&&The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 13, 4:20 AM MST | Winter Storm Watch | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 10 hr |
| Dec 13, 2:31 PM MST | Winter Weather Advisory | GJT | Archuleta, Delta, Eagle, Garfield, Gunnison, Hinsdale and 9 more | 53 hr |
| Dec 13, 2:38 PM MST | High Wind Watch | GJT | Archuleta, Dolores, La Plata, Mesa, Montezuma, Montrose and 1 more | 13 hr |
Nearby
Winter Storm Warnings in Colorado, 2021Winter Storm Warnings in Utah, 2021Every winter storm 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.