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Winter Weather Advisory 0013
Issued by the Salt Lake City Forecast Office

Action Issued Starts Expiration
New 2026-05-16 12:10:53 2026-05-17 13:00:00 2026-05-23 19:00:00
Time Extended 2026-05-16 18:20:04 2026-05-17 13:00:00 2026-05-19 01:00:00
Continued 2026-05-16 23:49:44 2026-05-17 13:00:00 2026-05-19 01:00:00
Continued 2026-05-17 23:08:43 2026-05-19 01:00:00
Continued 2026-05-18 15:58:54 2026-05-19 01:00:00
Cancelled 2026-05-18 19:11:32 2026-05-19 01:00:00


Action: New
Issued At: 2026-05-16 12:10:53

364 
WWUS45 KSLC 161710
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
1110 AM MDT Sat May 16 2026

UTZ112-WYZ021-170815-
/O.NEW.KSLC.WW.Y.0013.260517T1800Z-260524T0000Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Moon Lake, Mirror Lake
Highway, Lyman, and Evanston
1110 AM MDT Sat May 16 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SUNDAY TO 6 PM MDT 
SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches 
  for the Western Uinta Mountains and 2 to 5 inches for southwest 
  Wyoming.

* WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest 
  Wyoming.

* WHEN...From noon Sunday to 6 PM MDT Saturday.

* IMPACTS...Some impacts expected. Roads may be slick in spots due 
  to slush, snow, and drifted snow. Travel could be difficult at 
  times. Traction law restrictions may be enacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Utah, for winter road 
conditions from the Utah Department of Transportation, visit 
http://www.udottraffic.utah.gov.

In Wyoming, for winter road conditions from the Wyoming Department 
of Transportation, visit http://www.wyoroad.info or dial 511.

Use extra caution. Stay alert for changing road and weather 
conditions. 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

MT


Action: Time Extended
Issued At: 2026-05-16 18:20:04

887 
WWUS45 KSLC 162319
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
519 PM MDT Sat May 16 2026

UTZ112-WYZ021-171430-
/O.EXT.KSLC.WW.Y.0013.260517T1800Z-260519T0600Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Moon Lake, Lyman, Evanston,
and Mirror Lake Highway
519 PM MDT Sat May 16 2026

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM NOON SUNDAY TO 
MIDNIGHT MDT MONDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches 
  for the Western Uinta Mountains and 2 to 5 inches for southwest 
  Wyoming.

* WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest 
  Wyoming.

* WHEN...From noon Sunday to midnight MDT Monday Night.

* IMPACTS...Travel could be difficult at times. Traction law 
  restrictions may be enacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Utah, for winter road 
conditions from the Utah Department of Transportation, visit 
http://www.udottraffic.utah.gov.

In Wyoming, 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

LC


Action: Continued
Issued At: 2026-05-16 23:49:44

908 
WWUS45 KSLC 170449
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
1049 PM MDT Sat May 16 2026

UTZ112-WYZ021-172000-
/O.CON.KSLC.WW.Y.0013.260517T1800Z-260519T0600Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Moon Lake, Lyman, Evanston,
and Mirror Lake Highway
1049 PM MDT Sat May 16 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON SUNDAY TO 
MIDNIGHT MDT MONDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 6 to 14 inches 
  for the Western Uinta Mountains with locally higher amounts, and 2 
  to 6 inches for southwest Wyoming with locally in excess of 10 
  inches closer to the north slopes of the Uintas.

* WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest 
  Wyoming.

* WHEN...From noon Sunday to midnight MDT Monday Night.

* IMPACTS...Travel could be difficult at times. Traction law 
  restrictions may be enacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Utah, for winter road 
conditions from the Utah Department of Transportation, visit 
http://www.udottraffic.utah.gov.

In Wyoming, 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

LC


Action: Continued
Issued At: 2026-05-17 23:08:43

413 
WWUS45 KSLC 180408
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
1008 PM MDT Sun May 17 2026

UTZ112-WYZ021-181915-
/O.CON.KSLC.WW.Y.0013.000000T0000Z-260519T0600Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Mirror Lake Highway, Moon
Lake, Evanston, and Lyman
1008 PM MDT Sun May 17 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT 
MONDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 6 to 14 inches 
  for the Western Uinta Mountains with locally higher amounts 
  further east into the Uinta mountains, and 2 to 6 inches for 
  southwest Wyoming with locally in excess of 10 inches closer to 
  the north slopes of the Uintas.

* WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest 
  Wyoming.

* WHEN...Until midnight MDT Monday Night.

* IMPACTS...Travel could be difficult at times. Traction law 
  restrictions may be enacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Utah, for winter road 
conditions from the Utah Department of Transportation, visit 
http://www.udottraffic.utah.gov.

In Wyoming, 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

HM


Action: Continued
Issued At: 2026-05-18 15:58:54

582 
WWUS45 KSLC 182058
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
258 PM MDT Mon May 18 2026

UTZ112-WYZ021-190600-
/O.CON.KSLC.WW.Y.0013.000000T0000Z-260519T0600Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Lyman, Evanston, Moon Lake,
and Mirror Lake Highway
258 PM MDT Mon May 18 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT 
TONIGHT...

* WHAT...Snow. Additional snow accumulations up to one inch.

* WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest 
  Wyoming.

* WHEN...Until midnight MDT tonight.

* IMPACTS...Travel could be difficult at times. Traction law 
  restrictions may be enacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Utah, for winter road 
conditions from the Utah Department of Transportation, visit 
http://www.udottraffic.utah.gov.

In Wyoming, 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

MT


Action: Cancelled
Issued At: 2026-05-18 19:11:32

824 
WWUS45 KSLC 190011
WSWSLC

URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
611 PM MDT Mon May 18 2026

UTZ112-WYZ021-190115-
/O.CAN.KSLC.WW.Y.0013.000000T0000Z-260519T0600Z/
Western Uinta Mountains-Southwest Wyoming-
Including the following locations - Lyman, Mirror Lake Highway,
Moon Lake, and Evanston
611 PM MDT Mon May 18 2026

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow will continue to decrease through the evening hours. Very 
little or no additional accumulation is expected in Uinta County, 
Wyoming, and generally less than 1 inch is expected in the western 
Uinta Mountains.

$$

For more information from the National Weather Service visit 
https://weather.gov/saltlakecity.

For information on potential travel impacts visit 
http://udottraffic.utah.gov

LC



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