N.J. Stat. § App.A:9-43.20: Declaration of Code Blue alert.

3. A coordinator shall declare a Code Blue alert after evaluating weather forecasts and advisories produced by the National Weather Service that predict the following weather conditions in the county within 24 to 48 hours:

a. temperatures will reach 32 degrees Fahrenheit or lower; or

b. the National Weather Service wind chill temperature will be zero degrees Fahrenheit or less for a period of two hours or more.

L.2017, c.68, s.3; amended 2019, c.427, s.1.