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EN - 11
2 Light breeze
5.6 ~ 11 km/h
Wind felt on exposed skin. Lea-
ves rustle. Wind vanes begin to
move.
4 ~ 7 mph
4 ~ 6 knot
1.6 ~ 3.3 m/s
3 Gentle breeze
12 ~ 19 km/h
Leaves and small twigs constantly
moving, light ags extended.
8 ~ 12 mph
7 ~ 10 knot
3.4 ~ 5.4 m/s
4 Moderate breeze
20 ~ 28 km/h
Dust and loose paper raised.
Small branches begin to move.
13 ~ 17 mph
11 ~ 16 knot
5.5 ~ 7.9 m/s
5 Fresh breeze
29 ~ 38 km/h
Branches of a moderate size
move. Small trees in leaf begin
to sway.
18 ~ 24 mph
17 ~ 21 knot
8.0 ~ 10.7 m/s
6 Strong breeze
39 ~ 49 km/h
Large branches in motion. Whist-
ling heard in overhead wires.
Umbrella use becomes dicult.
Empty plastic bins tip over.
25 ~ 30 mph
22 ~ 27 knot
10.8 ~ 13.8 m/s
7 High wind
50 ~ 61 km/h
Whole trees in motion. Eort nee-
ded to walk against the wind.
31 ~ 38 mph
28 ~ 33 knot
13.9 ~ 17.1 m/s
8 Gale
62 ~ 74 km/h
Some twigs broken from trees.
Cars veer on road. Progress on
foot is seriously impeded.
39 ~ 46 mph
34 ~ 40 knot
17.2 ~ 20.7 m/s
9 Strong gale
75 ~ 88 km/h
Some branches break o 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 o or uprooted,
structural damage likely.
55 ~ 63 mph
48 ~ 55 knot
24.5 ~ 28.4 m/s
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