Find VTEC Product:

IEM VTEC Product Browser

This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).

13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.

Tab Functionality:
Above this section, you will notice six selectable tabs. Click on the tab to show the information.

  • Help: This page!
  • Event Info: Details of the selected event.
  • Text Data: The raw text product for this event.
  • Interactive Map: An interactive map showing the event and RADAR.
  • Storm Reports: Local Storm Reports.
  • List Events: List all events of the given phenomena, significance, year, and issuing office.

Web Services Used:
This application is fully driven by IEM web services.

2025 [KCYS] CHEYENNE Winter Storm (WS) Watch (A) Number 6

Listing of Counties/Parishes/Zones Included in Product

RADAR Composite at Issuance Time

Storm Based Warning History

025 
WWUS45 KCYS 170719
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
119 AM MDT Mon Mar 17 2025

WYZ112-180000-
/O.NEW.KCYS.WS.A.0006.250318T0600Z-250319T1200Z/
Sierra Madre Range-
119 AM MDT Mon Mar 17 2025

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE 
TUESDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations between 8 and 
  16 inches possible. Winds could gust as high as 40 mph.

* WHERE...Sierra Madre Range.

* WHEN...From late tonight through late Tuesday night.

* IMPACTS...Travel could be very difficult. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

Rubin
984 
WWUS45 KCYS 172011
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
211 PM MDT Mon Mar 17 2025

WYZ112-181200-
/O.UPG.KCYS.WS.A.0006.250318T0600Z-250319T1200Z/
/O.NEW.KCYS.WS.W.0008.250318T0600Z-250319T1200Z/
Sierra Madre Range-
211 PM MDT Mon Mar 17 2025

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT 
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations between 8 and 14 inches possible. Winds could gust 
  as high as 50 mph.

* WHERE...Sierra Madre Range.

* WHEN...From midnight tonight to 6 AM MDT Wednesday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and 
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly. Widespread blowing snow could 
  significantly reduce visibility and lead to dangerous travel 
  conditions. Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

WYZ114-181200-
/O.NEW.KCYS.WS.W.0008.250318T0600Z-250319T1200Z/
Snowy Range-
Including the cities of Centennial and Albany
211 PM MDT Mon Mar 17 2025

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT 
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  14 inches. Winds gusting as high as 50 mph.

* WHERE...Snowy Range.

* WHEN...From midnight tonight to 6 AM MDT Wednesday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and 
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly. Widespread blowing snow could 
  significantly reduce visibility and lead to dangerous travel 
  conditions. Travel could be very difficult. The hazardous 
  conditions could impact the Tuesday morning and evening commutes. 
  Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

WYZ103-181200-
/O.NEW.KCYS.WW.Y.0021.250318T1200Z-250319T1200Z/
North Laramie Range-
Including the cities of Garrett
211 PM MDT Mon Mar 17 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 11 
  inches. Winds gusting as high as 60 mph.

* WHERE...North Laramie Range.

* WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday.

* IMPACTS...Areas of blowing snow could reduce visibility and lead 
  to slick road conditions. Travel could be very difficult. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Strong winds could cause tree damage.

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.

&&

$$

WYZ104-105-109>111-181200-
/O.NEW.KCYS.WW.Y.0021.250318T1200Z-250319T1200Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central Carbon
County-North Snowy Range Foothills-Southwest Carbon County-
Including the cities of Arlington, Rawlins, Elk Mountain, Baggs,
Seminoe Dam, Shirley Basin, and Medicine Bow
211 PM MDT Mon Mar 17 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 6 
  inches. Winds gusting as high as 50 mph.

* WHERE...North Snowy Range Foothills including Arlington and Elk 
  Mountain along Interstate 80, Ferris/Seminoe/Shirley Mountains, 
  Shirley Basin, Central Carbon County, and Southwest Carbon County.

* WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday.

* IMPACTS...Areas of blowing snow could reduce visibility and lead 
  to slick road conditions. Travel could be very difficult. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Gusty winds could bring down tree branches.

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.

&&

$$

MM
Permalink to 202503170719-KCYS-WWUS45-WSWCYS
025 
WWUS45 KCYS 170719
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
119 AM MDT Mon Mar 17 2025

WYZ112-180000-
/O.NEW.KCYS.WS.A.0006.250318T0600Z-250319T1200Z/
Sierra Madre Range-
119 AM MDT Mon Mar 17 2025

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE 
TUESDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations between 8 and 
  16 inches possible. Winds could gust as high as 40 mph.

* WHERE...Sierra Madre Range.

* WHEN...From late tonight through late Tuesday night.

* IMPACTS...Travel could be very difficult. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

Rubin
Permalink to 202503172011-KCYS-WWUS45-WSWCYS
984 
WWUS45 KCYS 172011
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
211 PM MDT Mon Mar 17 2025

WYZ112-181200-
/O.UPG.KCYS.WS.A.0006.250318T0600Z-250319T1200Z/
/O.NEW.KCYS.WS.W.0008.250318T0600Z-250319T1200Z/
Sierra Madre Range-
211 PM MDT Mon Mar 17 2025

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT 
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations between 8 and 14 inches possible. Winds could gust 
  as high as 50 mph.

* WHERE...Sierra Madre Range.

* WHEN...From midnight tonight to 6 AM MDT Wednesday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and 
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly. Widespread blowing snow could 
  significantly reduce visibility and lead to dangerous travel 
  conditions. Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

WYZ114-181200-
/O.NEW.KCYS.WS.W.0008.250318T0600Z-250319T1200Z/
Snowy Range-
Including the cities of Centennial and Albany
211 PM MDT Mon Mar 17 2025

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT 
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  14 inches. Winds gusting as high as 50 mph.

* WHERE...Snowy Range.

* WHEN...From midnight tonight to 6 AM MDT Wednesday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and 
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly. Widespread blowing snow could 
  significantly reduce visibility and lead to dangerous travel 
  conditions. Travel could be very difficult. The hazardous 
  conditions could impact the Tuesday morning and evening commutes. 
  Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

WYZ103-181200-
/O.NEW.KCYS.WW.Y.0021.250318T1200Z-250319T1200Z/
North Laramie Range-
Including the cities of Garrett
211 PM MDT Mon Mar 17 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 11 
  inches. Winds gusting as high as 60 mph.

* WHERE...North Laramie Range.

* WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday.

* IMPACTS...Areas of blowing snow could reduce visibility and lead 
  to slick road conditions. Travel could be very difficult. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Strong winds could cause tree damage.

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.

&&

$$

WYZ104-105-109>111-181200-
/O.NEW.KCYS.WW.Y.0021.250318T1200Z-250319T1200Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-Central Carbon
County-North Snowy Range Foothills-Southwest Carbon County-
Including the cities of Arlington, Rawlins, Elk Mountain, Baggs,
Seminoe Dam, Shirley Basin, and Medicine Bow
211 PM MDT Mon Mar 17 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 6 
  inches. Winds gusting as high as 50 mph.

* WHERE...North Snowy Range Foothills including Arlington and Elk 
  Mountain along Interstate 80, Ferris/Seminoe/Shirley Mountains, 
  Shirley Basin, Central Carbon County, and Southwest Carbon County.

* WHEN...From 6 AM Tuesday to 6 AM MDT Wednesday.

* IMPACTS...Areas of blowing snow could reduce visibility and lead 
  to slick road conditions. Travel could be very difficult. The 
  hazardous conditions could impact the Tuesday morning and evening 
  commutes. Gusty winds could bring down tree branches.

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.

&&

$$

MM

All Storm Reports within Event Political Coverage

Storm Reports within Product Polygon

This table lists other events issued by the selected office for the selected year. Click on the row to select that event.