Shear line

shear line - In meteorology, a line or narrow zone across which there is an abrupt change in the horizontal wind component parallel to this line; a line of maximum horizontal wind shear.
shield - See rain-gauge shield, radiation shield.

SHEAR LINE
A line of maximum horizontal wind shear. A narrow zone across which there is an abrupt change in the horizontal wind component parallel to it.

See also: Meteor, Snow, Maximum, Low, Radiation