Line Echo Wave Pattern (Lewp) - Honeywell PRIMUS 660 Pilot's Manual

AVOID LINE ECHO WAVE PATTERNS (LEWP) BY 20 MILES
One portion of a line can accelerate and cause the line to
assume a wave–like configuration. Figure 5–45 is an example of an
LEWP. The most severe weather is likely at S. LEWPs form solid or
nearly solid lines that are dangerous to aircraft operations and
disruptive to normal air traffic flow.
The S indicates the location of the greatest hazards to aviation. The
next greatest probability is anywhere along the advancing (usually east
or southeast) edge of the line.
A28–1146–111
REV 2
PRIMUS
N

Line Echo Wave Pattern (LEWP)

Figure 5–45
R
660 Digital Weather Radar System
S
AD–15562–R1@
Radar Facts
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