Watches, Warnings, and Advisories

Current Watches, Warnings and Advisories for Jefferson (COC059) Colorado Issued by the National Weather Service


Winter Storm Warning Winter Storm Warning - Jefferson (Colorado)

Updated:Mon, 22-Dec-2014 4:30pm MST
Effective:Mon, 22-Dec-2014 4:30pm MST
Expires:Tue, 23-Dec-2014 12:00am MST

Areas affected: South and East Jackson, Larimer, North and Northeast Grand, Northwest Boulder Counties Above 9000 Feet; South and Southeast Grand, West Central and Southwest Boulder, Gilpin, Clear Creek, Summit, North and West Park Counties Above 9000 Feet; West Jackson and West Grand Counties Above 9000 Feet
Message summary: ...significant winter storm for the colorado mountains will begin to wind down this evening...
.snow will gradually decrease across the mountains this evening. Until then...some of the showers will still produce very heavy snowfall. Combined with strong winds and blowing snow...visibilities will be reduced to just a hundred feet at times. As the snow intensity decreases late this evening into the overnight hours...conditions will slowly improve. However...strong winds will still produce considerable blowing and drifting snow and hazardous travel conditions over the higher passes. Travel in the colorado high country is slow and treacherous. Travel is still discouraged. If you must travel...take along a winter survival kit with extra a shovel.
...winter storm warning remains in effect until midnight mst tonight...
* timing...snow will gradually decrease late this evening. Only light snow will fall overnight.
* storm total snow accumulations...14 to 26 inches...with locally higher amounts.
* wind/visibility...areas of 20 to 40 mph winds will occur...
Mainly above timberline with some gusts in excess of 60 mph in the highest exposed areas. Visibilities will drop well below a mile in the worst conditions.
* in the colorado high country will be slow and difficult through this evening. Travel is not recommended. Precautionary/preparedness actions...
If you must prepared for hazardous and slow driving conditions...and allow for the possibility of road closures or extremely slow travel. Take along a winter survival kit including warm clothing and blankets...extra food and water...a full gas tank...and a shovel in your vehicle in case of an emergency.
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Avalanche Warning Avalanche Warning - Jefferson (Colorado)

Updated:Mon, 22-Dec-2014 6:30am MST
Effective:Mon, 22-Dec-2014 6:30am MST
Expires:Tue, 23-Dec-2014 6:45am MST

Areas affected: Central Yampa River Basin; Eastern Sawatch Mountains above 11000 Ft; Flattops; Gore and Elk Mountains, Central Mountain Valleys; Grand and Battlement Mesas; Grand and Summit Counties Below 9000 Feet; Jackson County Below 9000 Feet; Lower Yampa River Basin; Roan and Tavaputs Plateaus; South and Southeast Grand, West Central and Southwest Boulder, Gilpin, Clear Creek, Summit, North and West Park Counties Above 9000 Feet; West Elk and Sawatch Mountains; Western Chaffee County Between 9000 and 11000 Ft; Western Mosquito Range, East Lake County Above 11000 Ft
Message summary: The following message is transmitted at the request of the colorado avalanche information center.
...avalanche warning issued for the steamboat and flat tops area of northern colorado...warning extended to cover the front range, tenmile, gore, elk, west elk, sawatch ranges and grand mesa on monday...
Strong winds, significant snow, and a very weak old snowpack have conspired to build dangerous avalanche conditions across northern and central colorado for monday. Significant new snow with very strong westerly winds have contributed to dangerous avalanche conditions across the colorado backcountry. At this time backcountry travel across the warning area is not recommended. Toepfer 2/2
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Source: NWS Watches, Warnings or Advisories for zone COC059

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