Sustained winds or frequent gusts of 35 mph (56 km/h) or greater, considerable falling and/or blowing snow reducing visibility frequently to 1/4 mile (0.4 km) or less for a period of three hours or mo [..]

Issued when widespread blowing snow with winds 25 to 35 mph (40 to 56 km/h), occasionally reducing visibility to 1/4 mile (400 m) or less, is expected.

An uneven distribution of snowfall or existing snow caused by strong surface wind. Drifting snow may occur during or after a snowfall.  If the snow is lifted more than 6 feet above the ground, it is t [..]

A condition occurring over a large area when the surface air temperature remains below 32 degrees Fahrenheit for an extended period of time.

Issued during the growing season when surface temperatures are expected to drop below freezing over a large area for an extended period of time, regardless if frost develops or not.

Drizzle that falls in liquid form and then freezes upon impact with the ground or an item with a temperature of 32 degrees Fahrenheit or less. Even in small amounts, freezing drizzle may cause traveli [..]

Rain that falls in liquid form and then freezes upon impact with the ground or an item with a temperature of 32 degrees Fahrenheit or less. Even in small amounts, freezing rain can cause traveling pro [..]

A covering of ice that forms on exposed surfaces when the air temperature falls below the frost point.

Issued during the growing season when widespread frost formation is expected over an extensive area. Air temperatures are usually in the mid 30s Fahrenheit at eye level.

When the temperature to which air must be cooled to saturation is below freezing.