Weather Forecast for Boulder

* WHAT...Snow expected. Additional snow accumulations between 2 and 5 inches in the valleys. For the mountains, 4 to 8 inches of additional snowfall with localized higher amounts up 12 inches. Winds gusting as high as 60 mph over the mountain passes. * WHERE...North Park, Grand and Summit Counties Below 9000 Feet, Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility, and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning and evening commutes.

Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws.

* WHAT...Snow. Additional snow accumulations between 3 and 8 inches. Winds gusting as high as 65 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less at times. There will also be potential for sudden snow squalls late Wednesday afternoon and evening to bring quick intense bursts of snow and brief whiteout conditions. The hazardous conditions will impact the Wednesday morning and evening commutes.

Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org.

* WHAT...West winds 25 to 40 mph with gusts up to 75 mph possible. * WHERE...The Northern Front Range Foothills, The Southern Front Range Foothills, and Boulder and the western suburbs of Denver. * WHEN...From Wednesday evening through Thursday morning. * IMPACTS...Damaging winds could break tree limbs and blow down fences. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.

AVWBOU THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE COLORADO AVALANCHE INFORMATION CENTER. AVALANCHE WARNING IN EFFECT FROM TUESDAY EVENING THROUGH THURSDAY *WHAT Heavy snow and strong winds will result in HIGH (4 of 5) avalanche danger. *WHEREthe Flat Tops, Park Range, Grand Mesa, Elkhead Mountains, Gore Range, Sawatch, West Elk, Elk Mountains, and San Juan Mountains. *WHEN Expect very dangerous avalanche conditions to begin on Tuesday evening and last through Thursday. *IMPACTS Large and dangerous avalanches will be easy to trigger. Large avalanches will run naturally. *PRECAUTION/PREPAREDNESS ACTIONS Travel in backcountry avalanche terrain is not recommended from Tuesday evening through Friday. Avoid travel on and under slopes with a slope angle steeper than about 30 degrees. You can find more detailed information at colorado.gov/avalanche

* WHAT...Heavy snow expected. Total additional snow accumulations between 8 and 16 inches. Winds gusting as high as 55 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws.