Full Notification

...MODERATE TO HEAVY SNOW AND BLOWING SNOW POSSIBLE FOR THE WESTERN MOUNTAINS AND VALLEYS SUNDAY THROUGH MONDAY MORNING... .INCREASING PACIFIC MOISTURE IN COMBINATION WITH A STRONG UPPER LEVEL DISTURBANCE...INCREASINGLY COLD AIR MASS...AND AN EVENTUAL COLD FRONT PASSAGE...WILL BRING MODERATE TO HEAVY SNOW IN ADDITION TO GUSTY SOUTH TO SOUTHWEST WINDS TO WESTERN AND NORTHWESTERN WYOMING SUNDAY THROUGH MONDAY MORNING. ...WINTER STORM WARNING IN EFFECT FROM 5 AM SUNDAY TO NOON MST MONDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 AM SUNDAY TO NOON MST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...LIGHT SNOW ACROSS WESTERN AND NORTHWESTERN WYOMING TODAY AND TONIGHT WILL GIVE WAY TO INCREASING MODERATE SNOWFALL BY SUNDAY MORNING. HEAVY SNOW IS EXPECTED OVER THE MOUNTAINS BY SUNDAY EVENING...LASTING OVERNIGHT INTO EARLY MONDAY MORNING BEFORE DECREASING IN INTENSITY THROUGH THE REST OF THE MORNING HOURS.

* TOTAL SNOWFALL...POSSIBLE 10 TO 20 INCHES.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 25 TO 35 MPH WITH GUSTS 40 TO 50 MPH BY SUNDAY AFTERNOON MAY CAUSE AREAS OF BLOWING AND DRIFTING SNOW...WITH VISIBILITY LIMITED TO ONE QUARTER MILE OR LESS AT TIMES.

* IMPACTS...ROADS MAY BECOME SNOW PACKED AND SLICK WITH LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

* AFFECTED AREAS: TETON AND GROS VENTRE MOUNTAINS ... YELLOWSTONE NATIONAL PARK

Instructions:

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW, AND OR BLOWING SNOW ARE EXPECTED OR OCCURRING. THIS COULD MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. IF YOU MUST TRAVEL KEEP SOME FOOD, WATER, AND AN EXTRA FLASHLIGHT IN YOUR VEHICLE IN CASE OF AN EMERGENCY. CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.