However, even small amounts of freezing rain or freezing drizzle may cause traveling problems. Freezing Drizzle - 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, possibly producing a thin coating of ice. Even in small amounts, freezing drizzle may cause traveling problems. Freezing Rain - 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, possibly producing a thin coating of ice. Even in small amounts, freezing rain can cause traveling problems.
Large amounts can pull down power lines and tree branches.
Frost - A covering of ice on exposed surfaces when the air temperature falls below the frost point. Frost Advisory - Issued during the growing season when widespread frost formation is expected over an extensive area. When the temperature to which air must be cooled to in order to be saturated is below freezing. The change occurs after dew formation and then the temperature falls below freezing. Heating Degree Day - A form of degree day used to estimate the required energy for heating.