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Page 21
39 - 46 mph
from trees.
Cars veer on road.
Progress on foot is
seriously impeded
34 - 40 knot
17.2 - 20.7 m/s
9
Strong gale
75 - 88 km/h
Some branches break
off trees, and some
small trees blow over.
Construction
/temporary signs and
barricades blow over.
47 - 54 mph
41 - 47 knot
20.8 - 24.4 m/s
10
Storm
89 - 102 km/h
Trees are broken off or
uprooted, structural
damage likely.
55 - 63 mph
48 - 55 knot
24.5 - 28.4 m/s
11
Violent storm
103 - 117 km/h
Widespread vegetation
and structural damage
likely.
64 - 73 mph
56 - 63 knot
28.5 - 32.6 m/s
12
Hurricane force
≥ 118 km/h
Severe widespread
damage to vegetation
and structures. Debris
and unsecured objects
are hurled about.
≥ 74 mph
≥ 64 knot
≥ 32.7m/s
Figure 19
5.8.2
Wind Units of Measure and Wind Direction Format
While in normal mode, perform the following operations to change the wind settings.
Command
Mode
Settings
[WIND]
+ 2
seconds
Enter Wind Settings
Wind Speed Units of Measure
Press
[ ]
to change between m/s → km/h →
knots → mph
[WIND]
Wind Direction Format
Press
[ ]
to change between degrees (0-360°)
and 16-point compass direction.
[WIND]
Exit Wind Settings
[WIND]
+ 2 seconds means press and hold the
WIND
button on the front of the display for two
seconds.
[WIND]
means press but do not hold the
WIND
button on the front of the display.
5.8.3
Wind Speed Level Indicator
The wind speed level is based on the Beaufort scale, and is displayed at the bottom of the
WIND
field:
Figure 20