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, 24-Nov-2014 12:23pm MST
Effective:Mon, 24-Nov-2014 12:23pm MST
Expires:Mon, 24-Nov-2014 5:00pm MST
Severity:Moderate
Urgency:Expected
Certainty:Likely
Status:Actual
Type:Alert
Category:Met

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
 
Instructions: A winter storm warning for heavy snow means severe winter weather conditions are expected or occurring. Significant amounts of snow are forecast that will make travel dangerous. Carry a winter survival kit with warm clothing and blankets...a flashlight... Food...and water in your vehicle in case of an emergency. Check the latest road conditions and restrictions before departing.

Message summary: ...snow will diminish but still windy over the north central colorado mountains this afternoon...
.snowfall will become more showery and less intense this afternoon as an area of moisture moves past the mountains. It will remain windy with areas of blowing and drifting snow. At noon road conditions over the higher passes were generally snowpacked and icy with areas of poor visibility. Loveland pass was closed. Only slight improvement is expected before late this afternoon.
...winter storm warning remains in effect until 5 pm mst this afternoon...
* timing...light to moderate snowfall will diminish this afternoon.
* snow accumulations...additional snowfall of 1 to 3 inches this afternoon.
* wind/visibility...west to northwest winds 20 to 30 mph with gusts to 45 mph in higher areas. Visibilities below a quarter mile in areas.
* impacts...roads will be snowpacked and icy with areas of poor visibility. Travel will be slow and hazardous.
...view the complete message
 

High Wind Watch High Wind Watch - Jefferson (Colorado)


Updated:Mon, 24-Nov-2014 11:59am MST
Effective:Mon, 24-Nov-2014 11:59am MST
Expires:Tue, 25-Nov-2014 5:00pm MST
Severity:Severe
Urgency:Future
Certainty:Possible
Status:Actual
Type:Alert
Category:Met

Areas affected: Boulder And Jefferson Counties Below 6000 Feet, West Broomfield County; Jefferson and West Douglas Counties Above 6000 Feet, Gilpin, Clear Creek, Northeast Park Counties Below 9000 Feet; Larimer County Below 6000 Feet, Northwest Weld County; Larimer and Boulder Counties Between 6000 and 9000 Feet
 
Instructions: Remember...a high wind watch means that strong and potentially damaging winds may occur. Persons in the watch area should remain alert to the possibility of high winds and be prepared to take action should high winds develop. Drivers along north-south roadways such as the peak to peak highway and along highway 93 south of boulder should consider avoiding these routes or delaying travel if the high winds develop.

Message summary: ...strong winds possible in and near the foothills on tuesday...
.northwesterly flow aloft will increase over colorado on tuesday which may lead to the development of strong winds in and near the foothills by tuesday morning which will continue into the afternoon.
...high wind watch remains in effect from late tonight through tuesday afternoon...
* timing...strong winds may develop around sunrise on tuesday and continue through the afternoon.
* winds...northwest 25 to 40 mph with gusts to 75 mph.
* impacts...lightweight objects and high profile vehicles may be affected by the strong gusty winds.
...view the complete message

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Source: NWS Watches, Warnings or Advisories for zone COC059

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