Winter Weather Advisory in Effect for Portions of Northern New York and Vermont Tomorrow

A Winter Weather Advisory is in effect from 8 AM to 11 PM Friday for portions of northern New York and Vermont. Total snow accumulations between 2 and 5 inches are expected. Plan on slippery road conditions. Hazardous conditions could impact the Friday evening commute. Slow down and use caution if traveling. Read More >

Surface to 1km Lapse Rate

A lapse rate is the rate of temperature change with height. The faster the temperature decreases with height, the "steeper" the lapse rate and the more unstable the atmosphere becomes. Values less than 5.5-6.0 degrees C/km represent stable conditions, while values near 9.5 degrees C/km are considered unstable. Between these values, lapse rates are considered conditionally unstable, meaning that it may become unstable if enough moisture is present. For more information on lapse rates, please click here.

Radar