5.7 SLINE: Shear Line
Figure 66 SLINE Example Configuration
SLINE marks the transition between two air masses on the image.
Because the wind can be dierent on either side of the air mass, sudden wind shifts occur
when a frontal boundary passes.
The following figure shows an example of a typical shear line. The most severe wind shifts
are associated with mesoscale gust fronts, which occur at the leading edge of a
thunderstorm outflow, and with larger scale cold fronts, which may be associated with
severe weather.
IRIS Product and Display User Guide M211319EN-H
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