The National Weather Service has issued a Strong Storm System Warning for southeastern Wyoming and western Nebraska for Sunday night and Monday. This includes Laramie, Cheyenne and the surrounding areas. Snow is expected by the end of Monday night with accumulations of 5 to 7 inches possible in some areas.

Here is the warning issued:

...STRONG STORM SYSTEM STILL ON TRACK TO BRING MUCH COLDER TEMPERATURES AND ACCUMULATING SNOWS TO MUCH OF THE AREA SUNDAY INTO MONDAY...

A RAPID CHANGE TO WINTER WEATHER CONTINUES LOOKING MORE LIKELY FOR MUCH OF SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE BY LATE IN THE WEEKEND.

TWO SEPARATE WINTER SYSTEMS LOOK TO IMPACT THE AREA BEGINNING AS EARLY AS SUNDAY MORNING...BRINGING WIDESPREAD SNOW TO AREAS NORTH OF A LINE FROM DOUGLAS TO WHEATLAND TO SCOTTSBLUFF.

THIS WILL BE IN RESPONSE TO A COLD FRONT SAGGING SOUTH AND POTENTIALLY STALLING ALONG THE EAST SLOPES OF THE LARAMIE RANGE BY EARLY SUNDAY AFTERNOON. A STRONGER AND MORE VIGOROUS UPPER LEVEL DISTURBANCE IS THEN EXPECTED TO INTERACT WITH THIS FRONT SUNDAY NIGHT INTO MONDAY.

IT STILL APPEARS THAT MOST LOCATIONS WILL SEE ACCUMULATING SNOW. THE HEAVIEST AMOUNTS OF SNOW APPEAR TO BE ALONG THE LARAMIE RANGE...THE WEST AND EAST SLOPES OF THE LARAMIE RANGE...INCLUDING LARAMIE AND CHEYENNE...AS WELL AS THE SOUTHERN NEBRASKA PANHANDLE LATE SUNDAY NIGHT INTO MONDAY. SNOW ACCUMULATIONS OF 5 TO 7 INCHES ARE POSSIBLE FOR THESE AREAS...WITH 2 TO 3 INCHES ELSEWHERE.

TRAVEL CONDITIONS ON INTERSTATES 80 AND 25 COULD BE IMPACTED WITH SNOW COVERED AND SLICK ROAD SURFACES AS WELL AS SIGNIFICANTLY REDUCED VISIBILITIES MAKING TRAVEL HAZARDOUS.

PLEASE STAY TUNED TO YOUR FAVORITE SOURCE OF WEATHER INFORMATION OVER THE NEXT FEW DAYS AS DETAILS REGARDING THIS STORM SYSTEM BECOME KNOWN. PLAN AHEAD AND ADJUST ANY HOLIDAY TRAVEL PLANS IF NECESSARY.