A STRONG LOW PRESSURE SYSTEM FROM THE GULF OF ALASKA WILL DROP INTO THE GREAT BASIN ON SATURDAY THEN SWEEP THROUGH THE REGION SATURDAY NIGHT AND SUNDAY. THIS STORM HAS UNUSUALLY COLD AIR FOR MAY AND COULD DROP SNOW LEVELS INTO THE HIGHER VALLEYS ON SUNDAY AND SUNDAY NIGHT. ALL MOUNTAINS AND HIGH VALLEYS ARE THREATENED TO RECEIVE SIGNIFICANT SNOWFALL. THE WEST CENTRAL COLORADO MOUNTAINS MAY GET OVER A FOOT OF NEW SNOW. IN NORTHEAST UTAH THE NORTH SIDE OF THE UINTA MOUNTAINS MAY ALSO SEE SIGNIFICANT ACCUMULATIONS. IN ADDITION...THE INTERSTATE 70 AND HIGHWAY 50 CORRIDORS MAY HAVE SLICK AND ICY CONDITIONS ON SUNDAY.
SHOWERS WILL BE ENDING ON MONDAY...BUT UNUSUALLY COLD AIR WILL LINGER OVER THE REGION. BELOW FREEZING TEMPERATURES ARE POSSIBLE ACROSS THE REGION SUNDAY NIGHT AND MONDAY NIGHT...THAT COULD DAMAGE TENDER VEGETATION.
THERE IS STILL SOME UNCERTAINTY ON THE TIMING AND IMPACTS OF THIS POWERFUL STORM. TRAVEL MAY BECOME DIFFICULT EARLY NEXT WEEK THROUGH THE MOUNTAINS AND POSSIBLY EVEN HIGHER VALLEY LOCATIONS DUE TO ACCUMULATING SNOW AND BLOWING SNOW. MONITOR THE LATEST FORECASTS ON THIS DEVELOPING WEATHER SYSTEM AT OUR WEBSITE WWW.WEATHER.GOV/GJT.