Shearlines vs. Fronts
Shear Lines: are associated with wind shifts
(direction and speed).
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.
An area of directional wind confluence along the tail end of a
surface front.
Lacks the baroclinicity/density discontinuity of surface fronts
Fronts: The interface or transition zone between
two air masses of different density.
Density depends on temperature and moisture content
Fronts either lie along shear lines or can lag behind
them.