911
WWUS45 KCYS 040841
WSWCYS
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
241 AM MDT MON MAY 4 2026
WYZ110-050000-
/O.UPG.KCYS.WS.A.0003.260505T0300Z-260506T1800Z/
/O.NEW.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF ELK MOUNTAIN AND ARLINGTON
241 AM MDT MON MAY 4 2026
...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT
WEDNESDAY...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND
10 INCHES.
* WHERE...NORTH SNOWY RANGE FOOTHILLS INCLUDING ARLINGTON AND ELK
MOUNTAIN ALONG INTERSTATE 80.
* WHEN...FROM 9 PM THIS EVENING TO NOON MDT WEDNESDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK, SLUSHY, AND HAZARDOUS.
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.
WYZ114-050000-
/O.UPG.KCYS.WS.A.0003.260505T0300Z-260506T1800Z/
/O.NEW.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
SNOWY RANGE-
INCLUDING THE CITIES OF ALBANY AND CENTENNIAL
241 AM MDT MON MAY 4 2026
...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT
WEDNESDAY...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 10
AND 18 INCHES MAINLY ABOVE 9000 FT IN ELEVATION AND ON THE
NORTHERN AND EASTERN SIDES OF THE RANGE.
* WHERE...SNOWY RANGE.
* WHEN...FROM 9 PM THIS EVENING TO NOON MDT WEDNESDAY.
* IMPACTS...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.
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.
WYZ116-117-050000-
/O.UPG.KCYS.WS.A.0003.260505T0300Z-260506T1800Z/
/O.NEW.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF VEDAUWOO, PUMPKIN VINE, WHITAKER, HORSE
CREEK, FEDERAL, AND BUFORD
241 AM MDT MON MAY 4 2026
...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT
WEDNESDAY...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 8 AND
16 INCHES.
* WHERE...SOUTH LARAMIE RANGE AND FOOTHILLS INCLUDING THE INTERSTATE
80 SUMMIT BETWEEN CHEYENNE AND LARAMIE.
* WHEN...FROM 9 PM THIS EVENING TO NOON MDT WEDNESDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS. THE WEIGHT OF THE HEAVY, WET
SNOW ON TREE LIMBS AND POWERLINES AND COULD CAUSE SPORADIC POWER
OUTAGES.
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.
WYZ103-050000-
/O.NEW.KCYS.WW.Y.0016.260505T0300Z-260506T1500Z/
NORTH LARAMIE RANGE-
INCLUDING THE CITIES OF GARRETT
241 AM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
MDT WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND 8
INCHES.
* WHERE...NORTH LARAMIE RANGE.
* WHEN...FROM 9 PM THIS EVENING TO 9 AM MDT WEDNESDAY.
* IMPACTS...OUTDOOR RECREATION COULD BECOME DANGEROUS TO THOSE
CAUGHT UNPREPARED FOR HAZARDOUS WINTER CONDITIONS. HUNTERS,
HIKERS, AND SNOWMOBILERS MAY BECOME DISORIENTED AND LOST DUE TO
LOW VISIBILITY IN FALLING 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.
WYZ105-115-050000-
/O.NEW.KCYS.WW.Y.0016.260505T0600Z-260506T1500Z/
SHIRLEY BASIN-LARAMIE VALLEY-
INCLUDING THE CITIES OF MEDICINE BOW, SHIRLEY BASIN, LARAMIE, AND
BOSLER
241 AM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 AND 9
INCHES. AREAS ON THE WESTERN SIDE OF THE LARAMIE VALLEY WILL BE
FAVORED FOR HEAVIER SNOW TOTALS.
* WHERE...SHIRLEY BASIN AND LARAMIE VALLEY.
* WHEN...FROM MIDNIGHT TONIGHT TO 9 AM MDT WEDNESDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE TUESDAY MORNING AND EVENING COMMUTES. THE HEAVY,
WET SNOW COULD LEAD TO BROKEN 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.
WYZ106-050000-
/O.NEW.KCYS.WW.Y.0016.260505T0600Z-260506T1500Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITIES OF BORDEAUX
241 AM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 3 TO 7 INCHES
MAINLY ABOVE 5500 FT IN ELEVATION. LOWER TOTALS ARE EXPECTED AT
LOWER ELEVATIONS.
* WHERE...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY.
* WHEN...FROM MIDNIGHT TONIGHT TO 9 AM MDT WEDNESDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE TUESDAY MORNING AND EVENING COMMUTES.
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.
WYZ118-050000-
/O.NEW.KCYS.WS.A.0004.260505T0600Z-260506T1500Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF CHEYENNE
241 AM MDT MON MAY 4 2026
...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...
* WHAT...HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8 INCHES POSSIBLE.
* WHERE...CENTRAL LARAMIE COUNTY.
* WHEN...FROM LATE TONIGHT THROUGH WEDNESDAY MORNING.
* IMPACTS...THE STRONG WINDS AND WEIGHT OF SNOW ON TREE LIMBS MAY
DOWN POWER LINES AND COULD CAUSE SPORADIC POWER OUTAGES. TRAVEL
COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS COULD IMPACT THE
TUESDAY MORNING AND EVENING COMMUTES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
MN
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