Bresser 7003500 Mode D'emploi page 70

3 Gentle breeze
Moderate
4
breeze
5 Fresh breeze
6 Strong breeze
7 High wind
8 Gale
9 Strong gale
10 Storm
11 Violent storm
12 Hurricane force
12 ~ 19 km/h
8 ~ 12 mph
Leaves and small twigs constantly moving,
light flags extended.
7 ~ 10 knots
3.4 ~ 5.4 m/s
20 ~ 28 km/h
13 ~ 17 mph
Dust and loose paper raised. Small
branches begin to move.
11 ~ 16 knots
5.5 ~ 7.9 m/s
29 ~ 38 km/h
18 ~ 24 mph
Branches of a moderate size move.
Small trees in leaf begin to sway.
17 ~ 21 knots
8.0 ~ 10.7 m/s
39 ~ 49 km/h
Large branches in motion. Whistling heard
25 ~ 30 mph
in overhead wires. Umbrella use becomes
22 ~ 27 knots
difficult. Empty plastic bins tip over.
10.8 ~ 13.8 m/s
50 ~ 61 km/h
31 ~ 38 mph
Whole trees in motion. Effort needed to
walk against the wind.
28 ~ 33 knots
13.9 ~ 17.1 m/s
62 ~ 74 km/h
Some twigs broken from trees.
39 ~ 46 mph
Cars veer on road. Progress on foot is
34 ~ 40 knots
seriously impeded
17.2 ~ 20.7 m/s
75 ~ 88 km/h
Some branches break off trees, and some
47 ~ 54 mph
small trees blow over. Construction /
41 ~ 47 knots
temporary signs and barricades blow over.
20.8 ~ 24.4 m/s
89 ~ 102 km/h
55 ~ 63 mph
Trees are broken off or uprooted,
structural damage likely.
48 ~ 55 knots
24.5 ~ 28.4 m/s
103 ~ 117 km/h
64 ~ 73 mph
Widespread vegetation and structural
damage likely.
56 ~ 63 knots
28.5 ~ 32.6 m/s
≥ 118 km/h
Severe widespread damage to vegetation
≥ 74 mph
and structures. Debris and unsecured
≥ 64 knots
objects are hurled about.
≥ 32.7m/s
70