Snow will become heavy at times this afternoon over north central Colorado. Snowfall rates will be around a half inch per hour...however up to one inch per will be possible under the heavy snow. West winds at 20 to 40 mph with gusts to 60 mph will become more common over the higher mountains...producing areas of blowing and drifting snow. Travel conditions will continue to deteriorate through the afternoon.
Forecast for South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet
Updated: 5:08 am MST on December 21, 2014
Winter Storm Warning in effect from noon today to midnight MST Monday night...
Snow and areas of blowing snow. Very windy. Snow may be heavy at times in the afternoon. Snow accumulation of 4 to 6 inches. Highs 27 to 37. West winds 20 to 30 mph with gusts to around 55 mph increasing to 25 to 40 mph with gusts to around 75 mph above timberline in the afternoon.
... Winter Storm Warning remains in effect until midnight MST Monday night...
* timing... light snow will continue this morning. Snow will quickly increase in intensity this afternoon with heavy snow and near blizzard conditions overnight. Lighter snow will continue Monday and Monday night... but there will still be extensive blowing snow and poor travel conditions.
* Snow accumulations... 14 to 24 inches.
* Wind/visibility... winds of 20 to 40 mph will be common... with gusts as high as 75 mph over higher exposed areas. Widespread blowing and drifting snow will develop this afternoon... and blizzard conditions may become widespread this evening.
* Impacts... travel conditions will deteriorate quickly this afternoon. Roads will become snow packed with drifting snow and near zero visibilities in windier areas. Road closures are possible... and chains will likely be required for commercial vehicles over the passes. There is a significant threat of travelers being stranded for an extended time with this storm.
A Winter Storm Warning for heavy snow means severe winter weather conditions are expected or occurring. Heavy snow and strong winds will make travel dangerous or impossible. Consider avoiding travel in the warning area as conditions will become dangerous. If you must travel... be prepared for slow and difficult driving and be prepared for the possibility of Road closures or becoming stranded. Carry warm clothing and blankets... extra food and water... a full Gas Tank... and a shovel in your vehicle in case of an emergency.
Local Storm Report
12/21/2014 0201 PM
2 miles SSE of Breckenridge, Summit County.
Heavy snow m6.5 inch, reported by trained spotter.
Since 8am 12/21, 8.9 inches since 8am 12/20
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