WINTER STORM WARNING IN EFFECT UNTIL 6 AM MDT THURSDAY. THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

* SUMMARY AND TIMING: SNOW WILL INCREASE THROUGH THE AFTERNOON AND WILL BECOME HEAVY AT TIMES THROUGH TONIGHT ALONG WITH STRONG NORTH WINDS CAUSING BLOWING SNOW.

* SNOW ACCUMULATIONS: 5 TO 9 INCHES IN SOUTHERN NATRONA COUNTY INCLUDING THE CASPER AREA...9 TO 16 INCHES ON CASPER MOUNTAIN AND 3 TO 5 INCHES IN NORTHERN NATRONA COUNTY INCLUDING MIDWEST.

* WIND AND VISIBILITY: NORTHEAST WINDS 20 TO 35 MPH MAY REDUCE THE VISIBILITY TO ONE QUARTER OF A MILE AT TIMES FROM BLOWING AND DRIFTING SNOW.

* IMPACTS: AREA HIGHWAYS INCLUDING INTERSTATE 25 MAY BECOME SLICK AND SNOW COVERED. BLOWING SNOW WILL REDUCE VISIBILITY AT TIMES.

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO.