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SAFETY
Operator Safety
Windchill/Temperature Charts
The following charts will help you determine when temperatures
become dangerous for riding.
WIND CHILL CHART (°F)
Estimated Wind Speed
p
in MPH
in MPH
Calm
5
10
15
20
25
30
35
40
Wind Speeds Greater
Than 40 MPH Have
Little Added Effect
Little Added Effect
WIND CHILL CHART (°C)
Estimated Wind Speed
p
in KPH
in KPH
0
10
20
30
40
50
60
70
Wind Speeds Greater
Than 70 KPH Have Little
Add d Eff
Added Effect
t
22
Actual Thermometer Reading (°F)
50
40
30
20
50
40
30
20
48
37
27
16
40
28
16
4
36
22
9
-5
32
18
4
-10
30
16
0
-15
28
13
-2
-18
27
11
-4
-20
26
10
-6
-21
Little Danger
(For Properly
Clothed Person)
Clothed Person)
5
0
-5
5
0
-5
1
-4
-11
-4
-9
-17
-7
-13
-21
-9
-16
-24
-11
-18
-26
-12
-19
-27
-13
-20
-28
Little Danger
(For Properly
(
p
y
Cl th d P
Clothed Person)
)
10
0
-10
Equivalent Temperature (°F)
10
0
-10
6
-5
-15
-9
-21
-33
-18
-36
-45
-25
-39
-53
-29
-44
-59
-33
-48
-63
-35
-49
-67
-37
-53
-69
Increasing
Danger
Danger From Freezing of Exposed Flesh
Actual Thermometer Reading (°C)
-10
-15
-20
Equivalent Temperature (°C)
-10
-15
-20
-16
-22
-27
-23
-29
-36
-28
-35
-42
-32
-39
-47
-34
-41
-49
-35
-43
-51
-36
-44
-52
Increasing
Danger
Danger From Freezing of Exposed Flesh
-20
-30
-40
-20
-30
-40
-26
-36
-47
-46
-58
-70
-58
-72
-85
-67
-82
-96
-110
-74
-88
-104
-118
-79
-94
-109
-125
-82
-98
-113
-129
-85
-100
-116
-132
Great
Danger
-25
-30
-35
-25
-30
-35
-33
-38
-45
-42
-48
-54
-48
-55
-63
-53
-61
-69
-57
-64
-73
-59
-66
-75
-60
-68
-76
Great
Danger
-50
-60
-50
-60
-57
-68
-83
-95
-99
-112
-124
-133
-140
-145
-148
-40
-40
-50
-61
-69
-76
-80
-82
-84
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