504
WWUS45 KCYS 180741
WSWCYS
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
141 AM MDT FRI APR 18 2025
WYZ101-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
CONVERSE COUNTY LOWER ELEVATIONS-
INCLUDING THE CITIES OF DEER CREEK, BILL, DOUGLAS, AND GLENROCK
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND
10 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE. WINDS GUSTING AS HIGH
AS 40 MPH.
* WHERE...CONVERSE COUNTY LOWER ELEVATIONS.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
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.
WYZ102-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
NIOBRARA COUNTY-
INCLUDING THE CITIES OF REDBIRD AND LUSK
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE ALONG THE PINE RIDGE.
WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...NIOBRARA COUNTY.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
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.
WYZ103-112-114-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
NORTH LARAMIE RANGE-SIERRA MADRE RANGE-SNOWY RANGE-
INCLUDING THE CITIES OF ALBANY, GARRETT, AND CENTENNIAL
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 12 AND 18
INCHES POSSIBLE. HIGHER AMOUNTS POSSIBLE IN THE PEAKS. WINDS COULD
GUST AS HIGH AS 50 MPH.
* WHERE...SIERRA MADRE RANGE, SNOWY RANGE, AND NORTH LARAMIE RANGE.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. OUTDOOR RECREATION WILL BE DANGEROUS. SNOWMOBILERS
MAY BECOME LOST OR DISORIENTED DUE TO LOW VISIBILITY FROM FALLING
AND BLOWING SNOW.
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.
WYZ104-181200-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1200Z/
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
INCLUDING THE CITIES OF SEMINOE DAM
141 AM MDT FRI APR 18 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT EARLY THIS
MORNING...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 6 AND
10 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE AT HIGHER ELEVATION.
WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...FERRIS/SEMINOE/SHIRLEY MOUNTAINS.
* WHEN...UNTIL 6 AM MDT EARLY THIS MORNING.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. TRAVEL COULD BE VERY DIFFICULT.
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.
WYZ105-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
SHIRLEY BASIN-
INCLUDING THE CITIES OF SHIRLEY BASIN AND MEDICINE BOW
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND
10 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...SHIRLEY BASIN.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
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.
WYZ106-190000-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250419T0000Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
INCLUDING THE CITIES OF BORDEAUX
141 AM MDT FRI APR 18 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE IN THE LARAMIE RANGE.
WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS
CONDITIONS COULD IMPACT THE FRIDAY MORNING AND EVENING COMMUTES.
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.
WYZ109-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
CENTRAL CARBON COUNTY-
INCLUDING THE CITIES OF RAWLINS
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW AND BLOWING SNOW EXPECTED. TOTAL SNOW
ACCUMULATIONS BETWEEN 5 AND 10 INCHES. LOCALLY HIGHER AMOUNTS
POSSIBLE. WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...CENTRAL CARBON COUNTY.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
VISIBILITY COULD BE SEVERELY REDUCED DUE TO BLOWING SNOW.
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.
WYZ110-190000-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250419T0000Z/
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF ELK MOUNTAIN AND ARLINGTON
141 AM MDT FRI APR 18 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND
10 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...NORTH SNOWY RANGE FOOTHILLS INCLUDING ARLINGTON AND ELK
MOUNTAIN ALONG INTERSTATE 80.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
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.
WYZ116-181800-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250418T1800Z/
SOUTH LARAMIE RANGE-
INCLUDING THE CITIES OF BUFORD, VEDAUWOO, AND PUMPKIN VINE
141 AM MDT FRI APR 18 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...SOUTH LARAMIE RANGE INCLUDING THE INTERSTATE 80 SUMMIT
BETWEEN CHEYENNE AND LARAMIE.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING
SNOW. TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING COMMUTES.
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.
WYZ117-190000-
/O.CON.KCYS.WS.W.0010.000000T0000Z-250419T0000Z/
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF FEDERAL, HORSE CREEK, AND WHITAKER
141 AM MDT FRI APR 18 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8 INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...SOUTH LARAMIE RANGE FOOTHILLS.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS
CONDITIONS COULD IMPACT THE FRIDAY MORNING AND EVENING COMMUTES.
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.
NEZ002-095-181800-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250418T1800Z/
DAWES COUNTY-NORTHERN SIOUX COUNTY-
INCLUDING THE CITIES OF CHADRON ST PARK, HARRISON, AND CHADRON
141 AM MDT FRI APR 18 2025
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 2 AND 4
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE ALONG THE PINE RIDGE.
WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...DAWES COUNTY AND NORTHERN SIOUX COUNTY.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING 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.
WYZ107-190000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250419T0000Z/
EAST PLATTE COUNTY-
INCLUDING THE CITIES OF WHEATLAND AND GUERNSEY
141 AM MDT FRI APR 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 AND 6
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...EAST PLATTE COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE FRIDAY 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.
WYZ108-190000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250419T0000Z/
GOSHEN COUNTY-
INCLUDING THE CITIES OF TORRINGTON
141 AM MDT FRI APR 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 2 AND 4
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...GOSHEN COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE FRIDAY 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.
WYZ113-115-190000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250419T0000Z/
UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY-
INCLUDING THE CITIES OF ENCAMPMENT, BOSLER, LARAMIE, AND SARATOGA
141 AM MDT FRI APR 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 AND 6
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...UPPER NORTH PLATTE RIVER BASIN AND LARAMIE VALLEY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE FRIDAY 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.
WYZ118-190000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250419T0000Z/
CENTRAL LARAMIE COUNTY-
INCLUDING THE CITIES OF CHEYENNE
141 AM MDT FRI APR 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 AND 6
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...CENTRAL LARAMIE COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE FRIDAY 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.
WYZ119-190000-
/O.CON.KCYS.WW.Y.0027.000000T0000Z-250419T0000Z/
EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF PINE BLUFFS
141 AM MDT FRI APR 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 2 AND 4
INCHES. LOCALLY HIGHER AMOUNTS POSSIBLE.
* WHERE...EAST LARAMIE COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE FRIDAY 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.
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