816  
WWUS85 KRIW 241702  
SPSRIW  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1102 AM MDT MON APR 24 2017  
 
WYZ011-250600-  
SOUTHEAST JOHNSON COUNTY-  
INCLUDING THE CITY OF KAYCEE  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED LATER TONIGHT AND TUESDAY ACROSS  
SOUTHERN JOHNSON COUNTY...  
 
RAIN WILL CHANGE TO SNOW AROUND MIDNIGHT TONIGHT AND CONTINUE  
INTO TUESDAY. THE HEAVIEST SNOW IS EXPECTED LATE TONIGHT AND  
TUESDAY MORNING...WITH ONE TO 4 INCHES OF TOTAL SNOWFALL  
ACCUMULATION BY TUESDAY AFTERNOON. HIGHWAYS WILL BECOME SLICK,  
SLUSHY OR SNOW COVERED, INCLUDING INTERSTATE 25. VISIBILITY COULD  
BE REDUCED TO UNDER ONE HALF MILE AT TIMES IN SNOW AND BLOWING  
SNOW.  
 

 
 
WYZ013-023-250600-  
JACKSON HOLE-STAR VALLEY-  
INCLUDING THE CITIES OF JACKSON, AFTON, ALPINE,  
STAR VALLEY RANCH, AND THAYNE  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED THIS EVENING THROUGH TUESDAY  
MORNING ACROSS THE JACKSON AND STAR VALLEYS...  
 
LIGHT RAIN OR RAIN MIXED WITH SNOW THIS AFTERNOON WILL TURN TO ALL  
WET SNOW THIS EVENING AND CONTINUE PERIODICALLY THROUGH TUESDAY  
MORNING. THE HEAVIEST SNOW IS EXPECTED TONIGHT...WITH GENERALLY ONE  
TO 3 INCHES OF TOTAL SNOWFALL ACCUMULATION BY NOON TUESDAY.  
HIGHWAYS WILL BECOME SLICK, SLUSHY OR SNOW COVERED. VISIBILITY  
COULD BE REDUCED TO UNDER ONE HALF MILE AT TIMES IN SNOW.  
 

 
 
WYZ017-018-250600-  
WIND RIVER BASIN-LANDER FOOTHILLS-  
INCLUDING THE CITIES OF RIVERTON, SHOSHONI, AND LANDER  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED LATE TONIGHT THROUGH TUESDAY  
MORNING ACROSS PORTIONS OF THE WIND RIVER BASIN AND LANDER  
FOOTHILLS...  
 
LIGHT RAIN WILL BECOME MIXED WITH SNOW AFTER MIDNIGHT TONIGHT  
...THEN DOWN TO NEAR BASIN FLOOR LEVEL AFTER 4 AM. THE LIGHT SNOW  
OR RAIN SNOW MIX WILL CONTINUE AT TIMES THROUGH TUESDAY MORNING.  
GENERALLY EXPECT FROM A TRACE TO 2 INCHES OF TOTAL SNOWFALL  
ACCUMULATION BY NOON TUESDAY. HIGHWAYS 789 OR 287 WILL BECOME  
SLICK OR SLUSHY AT TIMES. VISIBILITY COULD BE REDUCED TO UNDER ONE  
MILE AT TIMES IN SNOW.  
 

 
 
WYZ019-020-250600-  
GREEN MOUNTAINS AND RATTLESNAKE RANGE-  
NATRONA COUNTY LOWER ELEVATIONS-  
INCLUDING THE CITIES OF JEFFREY CITY AND CASPER  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED LATE TONIGHT THROUGH TUESDAY  
MORNING ACROSS PORTIONS OF NATRONA COUNTY IN ADDITION TO GREEN AND  
RATTLESNAKE MOUNTAINS...  
 
LIGHT RAIN WILL BECOME MIXED WITH SNOW BY AROUND MIDNIGHT TONIGHT  
ABOVE 5500 FEET...THEN DOWN TO NEAR BASIN FLOOR LEVEL AFTER 4 AM.  
THE SNOW OR RAIN SNOW MIX WILL CONTINUE AT TIMES THROUGH TUESDAY  
MORNING. THE HEAVIEST SNOW IS EXPECTED THROUGH TUESDAY MORNING  
ABOVE 5500 FEET...WITH GENERALLY ONE TO 3 INCHES OF TOTAL  
SNOWFALL ACCUMULATION BY EARLY AFTERNOON TUESDAY. HIGHWAYS 789 OR  
287 WILL BECOME SLICK, SLUSHY OR SNOW COVERED AT  
TIMES...ESPECIALLY OVER BEAVER RIM. VISIBILITY COULD BE REDUCED TO  
UNDER ONE HALF MILE AT TIMES IN SNOW.  
 

 
 
WYZ003-005-250600-  
CODY FOOTHILLS-SOUTHWEST BIG HORN BASIN-  
INCLUDING THE CITIES OF CODY, MEETEETSE, AND THERMOPOLIS  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED TONIGHT THROUGH TUESDAY MORNING  
ACROSS PORTIONS OF THE CODY FOOTHILLS...  
 
LIGHT RAIN WILL BECOME MIXED WITH SNOW AROUND MIDNIGHT TONIGHT  
...THEN DOWN TO NEAR BASIN FLOOR LEVEL AFTER 3 AM. THE SNOW OR  
RAIN SNOW MIX WILL CONTINUE AT TIMES THROUGH TUESDAY MORNING. THE  
HEAVIEST SNOW IS EXPECTED THROUGH TUESDAY MORNING ABOVE 5500  
FEET...WITH GENERALLY A TRACE TO 3 INCHES OF TOTAL SNOWFALL  
ACCUMULATION BY NOON TUESDAY. HIGHWAYS OF THE AREA MAY BECOME  
SLICK OR SLUSHY AT TIMES. VISIBILITY COULD BE REDUCED TO UNDER  
ONE MILE AT TIMES IN SNOW.  
 

 
 
WYZ022-250600-  
CASPER MOUNTAIN-  
1102 AM MDT MON APR 24 2017  
 
...BURST OF SPRING SNOW EXPECTED TONIGHT THROUGH TUESDAY MORNING  
OVER CASPER MOUNTAIN...  
 
LIGHT RAIN WILL BECOME MIXED WITH SNOW BEFORE MIDNIGHT TONIGHT  
ABOVE 6500 FEET...THEN DOWN TO 5000 FEET AFTER 2 AM. LIGHT SNOW  
OR A RAIN SNOW MIX WILL CONTINUE AT TIMES THROUGH TUESDAY. THE  
HEAVIEST SNOW IS EXPECTED TUESDAY MORNING ABOVE 5500 FEET...WITH  
GENERALLY 3 TO 6 INCHES OF TOTAL SNOWFALL ACCUMULATION BY  
TUESDAY EVENING. ROADS OF THE AREA MAY BECOME SLICK OR SLUSHY AT  
TIMES. VISIBILITY COULD BE REDUCED TO UNDER ONE HALF MILE AT TIMES  
IN SNOW.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page Main Text Page