Translations:Adventist Youth Honors Answer Book/Nature/Weather - Advanced/20/en
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The best indication of the presence of severe weather along a squall line is its morphing into a line echo wave pattern, or LEWP. A LEWP is a special configuration in a line of convective storms that indicates the presence of a low pressure area and the possibility of damaging winds, large hail, and tornadoes. At each kink along the LEWP is a mesoscale low pressure area. In response to very strong outflow southwest of the mesoscale low, an equatorward portion of the line bulges outward forming a bow echo. Behind this bulge lies the mesoscale high pressure area.
