Hard Freeze- freeze where vegetation is killed and the ground surface is frozen solid.
Hard Freeze - A freeze when the air temperature is 26 degrees or colder for at least four consecutive hours. It usually means that seasonal vegetation will be destroyed.
It differs from a dry freeze or black frost, for these terms are usually used to describe purely local freezing due to chilling of the surface air by rapid radiation from a restricted portion of the earth. Compare light freeze, hard freeze, ...
 See also: Front, Low, Meteorology, Precipitation, Radiation
  
|
RSS
