Predictive Windshear Alerts
Aural Alert
 Visual Alert
 Description
WINDSHEAR
AHEAD
 Red WINDSHEAR on both
attitude indicators
RED windshear symbol on
navigation display. Red
WINDSHEAR message on
navigation display (all modes).
 Windshear close to and directly
ahead of the airplane detected
by the weather radar. Enabled
during takeoff, below 1,200 feet
RA. Predictive windshear
symbol on the navigation
display shows windshear
position (expanded MAP,
center MAP, and expanded
VOR or APP modes only).
GO AROUND,
WINDSHEAR
AHEAD
 Red WINDSHEAR on both
attitude indicators
RED windshear symbol on
navigation display. Red
WINDSHEAR message on
navigation display (all modes).
 Windshear within 1.5 miles and
directly ahead of the airplane
detected by the weather
radar. Enabled during
approach, below 1,200 feet
RA. Predictive windshear
symbol on the navigation
display shows windshear
position (expanded MAP,
center MAP, and expanded
VOR or APP modes only).
The weather radar uses radar imaging to detect disturbed air prior to entering a windshear.

Note: The weather radar provides windshear alerts for windshear events containing some
level of moisture or particulate matter.

Note: The weather radar detects microbursts and other windshears with similar
characteristics. The weather radar does not provide alerting for all types of windshear.
The flight crew must continue to rely on traditional windshear avoidance methods.