Changing weather is to be expected today.

Here's what you need to know:

A DEVELOPING STORM SYSTEM OVER SOUTHEASTERN WYOMING WILL PULL A COLD FRONT SOUTH AND ACROSS THE FORECAST AREA TODAY... BRINGING COLDER TEMPERATURES AND INCREASED CHANCES FOR LIGHT PRECIPITATION... BOTH LIQUID AND FROZEN... TO THE BASIN FLOORS TODAY AND TONIGHT. ALL FORMS OF PRECIPITATION WILL BE POSSIBLE TODAY... FROM ALL SNOW THIS MORNING... TO LIGHT RAIN OR DRIZZLE THIS AFTERNOON... THEN BACK TO ALL SNOW BY THIS EVENING. TOTAL SNOW ACCUMULATION BY THURSDAY MORNING WILL GENERALLY RANGE FROM A HALF INCH TO 2 INCHES ACROSS GRASSY AREAS OF THE LOWER ELEVATIONS... WITH 2 TO 4 INCHES POSSIBLE ACROSS THE MOUNTAINS AND PORTIONS OF THE LANDER FOOTHILLS. EXPECTING LITTLE ACCUMULATION OR SOME SLUSHY AREAS ON MOST ROADWAYS... INCLUDING HIGHWAYS 20... 220... 287 AND 789.