113  
WWUS45 KRIW 191150  
WSWRIW  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE RIVERTON WY  
550 AM MDT FRI MAY 19 2017  
 
WYZ022-191300-  
/O.EXP.KRIW.WS.W.0016.000000T0000Z-170519T1200Z/  
CASPER MOUNTAIN-  
550 AM MDT FRI MAY 19 2017  
 
...WINTER STORM WARNING WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
PERIODS OF LIGHT SNOW WILL CONTINUE THIS MORNING, BUT ADDITIONAL  
SNOWFALL AMOUNTS WILL BE LIGHT. HOWEVER ROADS OVER CASPER MOUNTAIN  
WILL BE SLICK THIS MORNING.  
 

 
 
WYZ019-191300-  
/O.EXP.KRIW.WS.W.0016.000000T0000Z-170519T1200Z/  
GREEN MOUNTAINS AND RATTLESNAKE RANGE-  
INCLUDING THE CITY OF JEFFREY CITY  
550 AM MDT FRI MAY 19 2017  
 
...WINTER STORM WARNING WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
SOME LIGHT SNOW AND FOG WILL IMPACT SOUTHEAST FREMONT COUNTY THIS  
MORNING INCLUDING BEAVER RIM AND JEFFREY CITY. ROADS WILL BE SLICK  
IN SPOTS THIS MORNING.  
 

 
 
WYZ015-191300-  
/O.EXP.KRIW.WS.W.0016.000000T0000Z-170519T1200Z/  
WIND RIVER MOUNTAINS EAST-  
550 AM MDT FRI MAY 19 2017  
 
...WINTER STORM WARNING WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
SOME LIGHT SNOW AND FOG WILL BE OBSERVED ACROSS SOUTH PASS THIS  
MORNING. HOWEVER ADDITIONAL SNOW AMOUNTS WILL BE LIGHT AND THE  
WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE AT 6 AM. SOUTH PASS  
WILL BE SLICK IN SPOTS THIS MORNING.  
 

 
 
WYZ020-191300-  
/O.EXP.KRIW.WW.Y.0027.000000T0000Z-170519T1200Z/  
NATRONA COUNTY LOWER ELEVATIONS-  
INCLUDING THE CITY OF CASPER  
550 AM MDT FRI MAY 19 2017  
 
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
ONLY VERY LIGHT SNOW OR FLURRIES ARE EXPECTED FOR THE REMAINDER OF  
THIS MORNING WITH LITTLE OR NO ADDITIONAL SNOWFALL. HOWEVER, MOTORISTS  
SHOULD BE ALERT FOR SOME BLACK ICE ON AREA ROADS.  
 

 
 
WYZ011-191300-  
/O.EXP.KRIW.WW.Y.0027.000000T0000Z-170519T1200Z/  
SOUTHEAST JOHNSON COUNTY-  
INCLUDING THE CITY OF KAYCEE  
550 AM MDT FRI MAY 19 2017  
 
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
A MIXTURE OF RAIN AND SNOW WILL GRADUALLY COME TO AN END THIS  
MORNING. HOWEVER NO SNOW ACCUMULATION IS EXPECTED.  
 

 
 
WYZ017-018-191300-  
/O.EXP.KRIW.WW.Y.0027.000000T0000Z-170519T1200Z/  
WIND RIVER BASIN-LANDER FOOTHILLS-  
INCLUDING THE CITIES OF RIVERTON, SHOSHONI, AND LANDER  
550 AM MDT FRI MAY 19 2017  
 
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
LIGHT SNOW CONTINUES TO DECREASE IN COVERAGE EARLY THIS MORNING  
WITH LITTLE OR NO ADDITIONAL ACCUMULATION EXPECTED TODAY. THUS THE  
WINTER WEATHER ADVISORY FOR THE WIND RIVER BASIN WILL BE ALLOWED  
TO EXPIRE AT 6 AM.  
 

 
 
WYZ007-191300-  
/O.EXP.KRIW.WW.Y.0027.000000T0000Z-170519T1200Z/  
OWL CREEK AND BRIDGER MOUNTAINS-  
550 AM MDT FRI MAY 19 2017  
 
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
LIGHT SNOW CONTINUES TO DECREASE IN COVERAGE EARLY THIS MORNING  
WITH LITTLE OR NO ADDITIONAL ACCUMULATION EXPECTED TODAY. THUS THE  
WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE AT 6 AM.  
 

 
 
WYZ030-191300-  
/O.EXP.KRIW.WW.Y.0027.000000T0000Z-170519T1200Z/  
EAST SWEETWATER COUNTY-  
INCLUDING THE CITY OF WAMSUTTER  
550 AM MDT FRI MAY 19 2017  
 
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM MDT EARLY THIS  
MORNING...  
 
ONGOING AREAS OF LIGHT SNOW OVER EASTERN SWEETWATER COUNTY WILL  
CONTINUE TO DECREASE IN COVERAGE THIS MORNING. ADDITIONAL SNOWFALL  
AMOUNTS WILL BE LIGHT. HOWEVER MOTORISTS SHOULD BE PREPARED FOR  
CONTINUED SLICK ROAD CONDITIONS, INCLUDING ALONG INTERSTATE 80.  
ROAD CONDITIONS ACROSS EASTERN SWEETWATER COUNTY WILL IMPROVE BY  
MID TO LATE MORNING WITH ROADS BECOMING WET.  
 

 
 
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