Cooling Power of Wind on Exposed Flesh Expressed as an Equivalent Temperature (Under calm conditions)
Estimated |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Actual Temperature in Farenheit |
||||||||||||
50 |
40 |
30 |
20 |
10 |
0 |
-10 |
-20 |
-30 |
-40 |
-50 |
-60 |
|
Calm |
50 |
40 |
30 |
20 |
10 |
0 |
-10 |
-20 |
-30 |
-40 |
-50 |
-60 |
5 |
48 |
37 |
27 |
16 |
6 |
-5 |
-15 |
-26 |
-36 |
-47 |
-57 |
-68 |
10 |
40 |
28 |
16 |
4 |
-9 |
-24 |
-33 |
-46 |
-58 |
-70 |
-83 |
-95 |
15 |
36 |
22 |
9 |
-5 |
-18 |
-32 |
-45 |
-58 |
-72 |
-85 |
-99 |
-112 |
20 |
32 |
18 |
4 |
-10 |
-25 |
-39 |
-53 |
-67 |
-82 |
-96 |
-110 |
-124 |
25 |
30 |
16 |
0 |
-15 |
-29 |
-44 |
-59 |
-74 |
-88 |
-104 |
-118 |
-133 |
30 |
28 |
13 |
-2 |
-18 |
-33 |
-48 |
-63 |
-79 |
-94 |
-109 |
-125 |
-140 |
35 |
27 |
11 |
-4 |
-20 |
-35 |
-51 |
-67 |
-82 |
-98 |
-113 |
-129 |
-145 |
40 |
26 |
10 |
-6 |
-21 |
-37 |
-53 |
-69 |
-85 |
-100 |
-119 |
-132 |
-148 |
Wind speeds greater than 40 mph have little added effect |
LITTLE DANGER |
INCREASING DANGER |
GREAT DANGER |
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Source: NAVMED Bulletin 5052-29