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EN6
Beaufort scale
The Beaufort scale is an international scale of wind velocities ranging from 0 (calm) to
12 (Hurricane force).
Past history record
The console automatically stores past 24
hours weather data.
1. When the HOURLY top wind speed
shown, press [ HISTORY ] key to check
the beginning of the current hour's
weather data, e.g. the current time is
7:25 am, March 8, the display will show
the data of 7:00am, March 8.
2. Press [ HISTORY ] key repeatedly to
view older readings of the past 24 hours
(-01H to -24H).
Display
Beaufort
scale
Wind speed
Land condition
Calm, smoke rises vertically.
0
Calm
< 1 km/h
< 1 mph
< 1 knot
< 0.3 m/s
1
2
3
4
5
6
7
8
9
10
11
12
Light air
flow
Light
breeze
Gentle
breeze
Moderate
breeze
Fresh
breeze
Strong
breeze
High wind
Gale
Strong
gale
Storm
Violent
storm
Hurricane
force
Smoke drift indicates wind
direction. Leaves and wind
vanes are stationary.
.
Wind felt on exposed skin.
Leaves rustle. Wind vanes
begin to move.
Leaves and small twigs
constantly moving, light flags
extended.
Dust and loose paper raised.
Small branches begin to move.
Branches of a moderate size
move. Small trees in leaf begin
to sway.
.
Large branches in motion. Whistling
heard in overhead wires. Umbrella
use becomes difficult. Empty plastic
bins tip over.
Some twigs broken from trees.
Cars veer on road. Progress on
foot is seriously impeded.
Some branches break off trees,
and some small trees blow over.
Construction /temporary signs
and barricades blow over.
Trees are broken off or
uprooted, structural damage
likely.
.
Widespread vegetation and
structural damage likely.
Severe widespread damage to
vegetation and structures.
Debris and unsecured objects
are hurled about.
Whole trees in motion. Effort
needed to walk against the
wind.
1.1 ~ 5.5 km/h
1 ~ 3 mph
1 ~ 3 knot
0.3 ~ 1.5 m/s
5.6 ~ 11 km/h
4 ~ 6 knot
4 ~ 7 mph
1.6 ~ 3.3 m/s
12 ~ 19 km/h
7 ~ 10 knot
8 ~ 12 mph
3.4 ~ 5.4 m/s
13 ~ 17 mph
20 ~ 28 km/h
11 ~ 16 knot
18 ~ 24 mph
5.5 ~ 7.9 m/s
29 ~ 38 km/h
17 ~ 21 knot
8.0 ~ 10.7 m/s
25 ~ 30 mph
39 ~ 49 km/h
22 ~ 27 knot
10.8 ~ 13.8 m/s
31 ~ 38 mph
50 ~ 61 km/h
28 ~ 33 knot
13.9 ~ 17.1 m/s
75 ~ 88 km/h
62 ~ 74 km/h
39 ~ 46 mph
17.2 ~ 20.7 m/s
34 ~ 40 knot
47 ~ 54 mph
41 ~ 47 knot
20.8 ~ 24.4 m/s
89 ~ 102 km/h
55 ~ 63 mph
48 ~ 55 knot
103 ~ 117 km/h
24.5 ~ 28.4 m/s
64 ~ 73 mph
56 ~ 63 knot
28.5 ~ 32.6 m/s
≥ 118 km/h
≥ 74 mph
≥ 64 knot
32.7m/s
16


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