261
WWUS45 KCYS 041851
WSWCYS
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1251 PM MDT MON MAY 4 2026
WYZ118-051200-
/O.UPG.KCYS.WS.A.0004.260505T0600Z-260506T1500Z/
/O.EXB.KCYS.WS.W.0006.260505T0600Z-260506T1500Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF CHEYENNE
1251 PM MDT MON MAY 4 2026
...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM MDT
WEDNESDAY...
* WHAT...HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
10 INCHES POSSIBLE.
* WHERE...CENTRAL LARAMIE COUNTY.
* WHEN...FROM MIDNIGHT TONIGHT TO 9 AM MDT WEDNESDAY.
* IMPACTS...THE WEIGHT OF THE HEAVY, WET 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
MORNING AND EVENING COMMUTES ON TUESDAY, AND THE MORNING COMMUTE
ON WEDNESDAY.
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.
WYZ110-051200-
/O.CON.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF ARLINGTON AND ELK MOUNTAIN
1251 PM MDT MON MAY 4 2026
...WINTER STORM WARNING REMAINS 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...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
WYZ114-051200-
/O.CON.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
SNOWY RANGE-
INCLUDING THE CITIES OF CENTENNIAL AND ALBANY
1251 PM MDT MON MAY 4 2026
...WINTER STORM WARNING REMAINS 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 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...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
WYZ116-117-051200-
/O.CON.KCYS.WS.W.0006.260505T0300Z-260506T1800Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF BUFORD, FEDERAL, VEDAUWOO, HORSE CREEK,
WHITAKER, AND PUMPKIN VINE
1251 PM MDT MON MAY 4 2026
...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
NOON MDT WEDNESDAY...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 7 AND
17 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...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
WYZ112-051200-
/O.EXB.KCYS.WW.Y.0016.260505T1200Z-260506T1200Z/
SIERRA MADRE RANGE-
1251 PM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 6 AM MDT
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 4 TO 8 INCHES
WITH ACCUMULATIONS UP TO 13 INCHES POSSIBLE ABOVE 9000FT. WINDS
GUSTING AS HIGH AS 35 MPH.
* WHERE...SIERRA MADRE RANGE.
* WHEN...FROM 6 AM TUESDAY TO 6 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.
WYZ103-051200-
/O.CON.KCYS.WW.Y.0016.260505T0300Z-260506T1500Z/
NORTH LARAMIE RANGE-
INCLUDING THE CITIES OF GARRETT
1251 PM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY REMAINS 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.
WYZ105-115-051200-
/O.CON.KCYS.WW.Y.0016.260505T0600Z-260506T1500Z/
SHIRLEY BASIN-LARAMIE VALLEY-
INCLUDING THE CITIES OF LARAMIE, MEDICINE BOW, BOSLER, AND
SHIRLEY BASIN
1251 PM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY REMAINS 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.
WYZ106-051200-
/O.CON.KCYS.WW.Y.0016.260505T0600Z-260506T1500Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITIES OF BORDEAUX
1251 PM MDT MON MAY 4 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 9 AM MDT WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 4 TO 9 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.
MM
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