Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
258 AM MST Wed Feb 18 2026
WYZ021-190000-
/O.CON.KSLC.WW.Y.0006.000000T0000Z-260219T0000Z/
Southwest Wyoming-
Including the following locations - Lyman and Evanston
258 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Snow accumulations between 1 to 5 inches with locally
higher amounts up to 8 inches on the northern slope of the Uinta
Mountains.
* WHERE...Southwest Wyoming.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Winter driving conditions are likely.
* ADDITIONAL DETAILS...Heaviest snowfall is expected between 8 AM
and 2 PM, with more showery conditions continuing through the
remainder of the afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Wyoming Department of Transportation, visit
http://www.wyoroad.info or dial 511.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
JW
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
258 AM MST Wed Feb 18 2026
UTZ124-126-128-190000-
/O.CON.KSLC.WW.Y.0006.000000T0000Z-260219T0000Z/
Zion National Park-Upper Sevier River Valleys-South Central Utah-
Including the following locations - Panguitch, Koosharem,
Escalante, Springdale, Kanab, and Circleville
258 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow expected. Total snow accumulations between 1 to 4
inches with higher totals up to 10 inches above 7000 feet. Winds
gusting as high as 45 mph.
* WHERE...South Central Utah, Upper Sevier River Valleys, and Zion
National Park.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Winter driving conditions are likely.
* ADDITIONAL DETAILS...Heaviest snowfall is expected between 6 AM to
11 AM, with more showery conditions continuing through the
remainder of the afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
258 AM MST Wed Feb 18 2026
UTZ102>106-116-190000-
/O.EXT.KSLC.WW.Y.0006.260218T1500Z-260219T0200Z/
Tooele and Rush Valleys-Eastern Box Elder County-Northern Wasatch
Front-Salt Lake Valley-Utah Valley-Eastern Juab/Millard Counties-
Including the following locations - Sandy, Lehi, Bountiful,
Snowville, Fillmore, Brigham City, Scipio, Provo, Tooele, Salt
Lake City, Payson, Nephi, Ogden, West Jordan, Vernon, and
Grantsville
258 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO 7
PM MST THIS EVENING...
* WHAT...Snow expected. Total snow accumulations between 1 and 4
inches with locally higher amounts up to 6 inches along the
benches. Winds gusting as high as 50 mph.
* WHERE...The Wasatch Front, Tooele and Rush Valleys, and Eastern
Juab/Millard Counties.
* WHEN...From 8 AM this morning to 7 PM MST this evening.
* IMPACTS...Winter driving conditions are expected, with impacts
possible for the Wednesday morning and evening commute.
* ADDITIONAL DETAILS...Heaviest snowfall is expected between 11 AM
to 3 PM, with snow rates around 1 inch per hour possible at times
during this period. More showery conditions continue through the
remainder of the afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
517 AM MST Wed Feb 18 2026
AZZ011-039-190200-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-260219T0200Z/
Chuska Mountains and Defiance Plateau-Black Mesa Area-
Including the cities of Navajo N.M., Ganado, and Window Rock
517 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...
* WHAT...Snow expected. Additional snow accumulations 1 to 4 inches,
with higher amounts around Buffalo Pass. Winds gusting as high as
60 mph.
* WHERE...Black Mesa, Chuska Mountains, and Defiance Plateau.
* WHEN...Until 7 PM MST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will likely
become slick and hazardous. Even light snowfall amounts can create
hazardous driving conditions due to slippery, snow-covered roads.
The hazardous conditions will impact the Wednesday morning and
evening commutes. Strong winds could cause extensive damage to
trees and power lines.
* ADDITIONAL DETAILS...
Forecast snowfall amounts from 5 AM MST Today to 7 PM MST Today...
Buffalo Pass: 4 to 6" Ganado: Trace to 1"
Window Rock: 1 to 2" Shonto: 2 to 4"
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions and closures go to az511.gov, or call 5 1 1.
&&
$$
Konieczny
URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
500 AM MST Wed Feb 18 2026
UTZ025-190000-
/O.CON.KGJT.WW.Y.0005.000000T0000Z-260219T1200Z/
Tavaputs Plateau-
500 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY
ABOVE 7000 FEET...
* WHAT...Snow above 7000 feet. Additional snow accumulations between
2 and 5 inches. Winds gusting as high as 60 mph.
* WHERE...Tavaputs Plateau.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult to impossible due to snow
and blowing snow.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
500 AM MST Wed Feb 18 2026
UTZ023-190000-
/O.CON.KGJT.WW.Y.0005.000000T0000Z-260219T1200Z/
Eastern Uinta Mountains-
Including the cities of Manila and Dutch John
500 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY
ABOVE 7000 FEET...
* WHAT...Snow above 7000 feet. Additional snow accumulations between
4 and 8 inches. Winds gusting as high as 55 mph.
* WHERE...Eastern Uinta Mountains.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult. Blowing snow may result
in near zero visibility at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Grand Junction CO
500 AM MST Wed Feb 18 2026
UTZ028-190000-
/O.CON.KGJT.WW.Y.0005.000000T0000Z-260219T1200Z/
La Sal and Abajo Mountains-
Including the cities of Spanish Valley, La Sal, and Monticello
500 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY
ABOVE 8000 FEET...
* WHAT...Snow above 8000 feet. Additional snow accumulations between
4 and 8 inches with locally higher amounts. Winds gusting as high
as 65 mph.
* WHERE...La Sal and Abajo Mountains.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult. Blowing snow may result
in near zero visibility at times.
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.
&&
$$
15
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
458 AM MST Wed Feb 18 2026
WYZ012-014-015-024-190000-
/O.CON.KRIW.WW.Y.0008.000000T0000Z-260219T0600Z/
Teton and Gros Ventre Mountains-Wind River Mountains West-Wind
River Mountains East-Salt River and Wyoming Ranges-
458 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...Snow. Additional snow accumulations between 5 and 9 inches.
Winds gusting as high as 45 mph.
* WHERE...Wind River Mountains East, Wind River Mountains West,
Teton and Gros Ventre Mountains, and Salt River and Wyoming Ranges.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...Travel could be difficult. The hazardous conditions
could impact the Wednesday morning and evening commutes.
* ADDITIONAL DETAILS...Total snow accumulations 6 to 10 inches for
Teton, Togwotee, and South Passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
458 AM MST Wed Feb 18 2026
WYZ013-023-190000-
/O.CON.KRIW.WW.Y.0008.000000T0000Z-260219T0000Z/
Jackson Hole-Star Valley-
Including the cities of Thayne, Star Valley Ranch, Afton,
Jackson, and Alpine
458 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations between 2 and 4 inches.
* WHERE...Jackson Hole and Star Valley.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday morning and evening commutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
458 AM MST Wed Feb 18 2026
WYZ017-018-190000-
/O.CON.KRIW.WW.Y.0008.260219T0000Z-260219T1800Z/
Wind River Basin-Lander Foothills-
Including the cities of Lander, Riverton, and Shoshoni
458 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST THURSDAY...
* WHAT...Snow expected. Total snow accumulations between 3 and 5
inches. Winds gusting as high as 35 mph.
* WHERE...Lander Foothills and Wind River Basin.
* WHEN...From 5 PM this afternoon to 11 AM MST Thursday. The
steadiest snow will fall Wednesday night.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday evening and Thursday morning
commutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
458 AM MST Wed Feb 18 2026
WYZ019-020-022-190000-
/O.CON.KRIW.WW.Y.0008.260219T0000Z-260219T1800Z/
Green Mountains and Rattlesnake Range-Natrona County Lower
Elevations-Casper Mountain-
Including the cities of Casper and Jeffrey City
458 AM MST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST THURSDAY...
* WHAT...Snow expected. Total snow accumulations between 3 and 5
inches, except 5 to 8 inches on Casper Mountain. Winds gusting as
high as 35 mph.
* WHERE...Casper Mountain, Green Mountains and Rattlesnake Range,
and Natrona County Lower Elevations.
* WHEN...From 5 PM this afternoon to 11 AM MST Thursday. The
steadiest snow will fall Wednesday night.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday evening and Thursday morning
commutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Hattings
URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
339 AM PST Wed Feb 18 2026
AZZ001-NVZ015-190000-
/O.CON.KVEF.WW.Y.0004.000000T0000Z-260219T0000Z/
Northwest Plateau-Lincoln County-
Including the cities of Caliente, Rachel, Pipe Spring National
Monument, Tuweep, Pioche, Mt Trumbull, Alamo, Hiko, Panaca,
Western Grand Canyon, and Colorado City
339 AM PST Wed Feb 18 2026 /439 AM MST Wed Feb 18 2026/
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST /5 PM
MST/ THIS AFTERNOON...
* WHAT...Snow expected. Total snow accumulations up to 3 to 6 inches
with localized amounts up to 8 inches. Winds gusting as high as 50
mph.
* WHERE...In Arizona, Northwest Plateau. In Nevada, Lincoln County.
* WHEN...Until 4 PM PST /5 PM MST/ this afternoon.
* IMPACTS...Plan on slippery road conditions. Gusty winds could
bring down tree branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. In Arizona, call 5 1 1
for road information. In Nevada, call 5 1 1 for road information.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Elko NV
1257 AM PST Wed Feb 18 2026
NVZ031-035-038-039-041-190600-
/O.CON.KLKN.WW.Y.0002.000000T0000Z-260219T0600Z/
Northern Elko-White Pine-Southwest Elko-South Central Elko-
Northeastern Nye-
Including the cities of Jiggs, Lee, Duckwater, Mountain City, Ely
Airport, Ryndon, Midas, McGill, Ruth, Elko, Owyhee, Tuscarora,
Cherry Creek, Ruby Lake, Jarbidge, Lund, Blue Eagle Ranch, Gibbs
Ranch, South Fork, Preston, Spring Creek, Oasis, Lamoille,
Charleston, and Ely
1257 AM PST Wed Feb 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches
across the lower elevation valleys. Total snow accumulations of 5
to 8 inches above 5,000 feet. Winds gusting as high as 55 mph.
* WHERE...White Pine, Northern Elko, South Central Elko, Southwest
Elko, and Northeastern Nye Counties.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Roads will become slick and hazardous. Travel could be
very difficult. The hazardous conditions will impact the Wednesday
morning commute. Gusty winds could bring down tree limbs.
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.
&&
$$
97
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
345 PM MST Tue Feb 17 2026
IDZ058-059-065-181945-
/O.EXA.KPIH.WW.Y.0005.000000T0000Z-260219T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Teton
Valley-
Including the cities of Driggs, Lava Hot Springs, Inkom,
Thatcher, Preston, Tetonia, Malad, Ashton, McCammon, and Downey
345 PM MST Tue Feb 17 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST THURSDAY...
* WHAT...Snow. Snow accumulations between 4 and 9 inches. Winds
gusting as high as 45 mph.
* WHERE...Teton Valley, Franklin/Eastern Oneida Region, and Marsh
and Arbon Highlands.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Tuesday evening and
Wednesday morning commutes. Gusty winds could bring down tree
branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
345 PM MST Tue Feb 17 2026
IDZ061>064-066-067-181945-
/O.CON.KPIH.WW.Y.0005.000000T0000Z-260219T1200Z/
Bear Lake Valley-Blackfoot Mountains-Caribou Range-Big Hole
Mountains-Centennial Mountains - Island Park-Beaverhead - Lemhi
Highlands-
Including the cities of Grace, Henry, Spencer, Georgetown,
Kilgore, Edie School, Soda Springs, Montpelier, Victor, Wayan,
Dubois, Swan Valley, St. Charles, Bone, Island Park, and Small
345 PM MST Tue Feb 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
THURSDAY...
* WHAT...Snow. There is a lull in snowfall this afternoon, however
an additional 5 to 12 inches is possible starting tonight and
continuing into early Thursday morning. Locally higher amounts are
possible in the Big Holes and along the Montana border. Winds
gusting as high as 40 mph at times are possible.
* WHERE...Beaverhead - Lemhi Highlands, Big Hole Mountains,
Centennial Mountains - Island Park, Bear Lake Valley, Blackfoot
Mountains, and Caribou Range.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Tuesday evening and
Wednesday morning commutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
Visit weather.gov/pocatello for more information.
Wyatt
