Thursday, October 23, 2014

What do National Weather Service Advisories Mean?

The National Weather Service will inform you about developing hazardous weather with outlooks, watches, warnings and advisories.      

A Winter Weather Advisory is issued when general snow accumulations are expected
between 4 and 8 inches in 12 hours in the mountains...and between 3 and 6 inches in 12 hours at lower elevations.

When falling snow is accompanied by blowing snow to cause travel problems due to lower visibilities.                              

When wind blown snow will occasionally reduce visibilities and create a hazard for travelers.

For freezing drizzle or a mix of precipitation types...such as snow and sleet...that will impact travel conditions.

A Dense Fog Advisory is issued when widespread fog will reduce visibilities to 1/4 mile or less.

A Wind Chill Advisory is issued when wind and temperature combine to produce wind chill values of minus 18 degrees to minus 24 degrees across the plains and high valleys...and values of minus 25 to minus 35 degrees across the mountains.

A Frost Advisory is issued during the growing season when temperatures are expected to drop to between 32 and 35 degrees on clear calm nights.

A Blowing Dust Advisory is issued when blowing dust reduces visibilities to between a quarter of a mile and a mile. 

You can view the current watches, warnings and advisories for Colorado by visiting: http://alerts.weather.gov/cap/co.php?x=1

www.READYColorado.com. Stay #COwx aware and remain #COReady.