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Wind Chill Table:Last newsletter we wrote about
figuring out wind speeds in nature. This week we are
adding a wind chill table to help you play safe in the
great outdoors.
| |
| Actual Temp. |
Calm
|
5 MPH
|
10 MPH
|
15 MPH
|
20 MPH
|
25 MPH
|
30 MPH
|
35 MPH
|
40 MPH
|
+50
|
50
|
48
|
40
|
36
|
32
|
30
|
28
|
27
|
26
|
+40
|
40
|
37
|
28
|
22
|
18
|
16
|
13
|
11
|
10
|
+30
|
30
|
27
|
16
|
9
|
4
|
0
|
-2
|
-4
|
-6
|
+20
|
20
|
16
|
4
|
-5
|
-10
|
-15
|
-18
|
-20
|
-21
|
+10
|
10
|
6
|
-9
|
-18
|
-25
|
-29
|
-33
|
-35
|
-37
|
0
|
0
|
-5
|
-21
|
-36
|
-39
|
-44
|
-48
|
-49
|
-53
|
-10
|
-10
|
-15
|
-33
|
-45
|
-53
|
-59
|
-63
|
-67
|
-69
|
-20
|
-20
|
-26
|
-46
|
-58
|
-67
|
-74
|
-79
|
-82
|
-85
|
-30
|
-30
|
-36
|
-58
|
-72
|
-82
|
-88
|
-94
|
-98
|
-100
|
-40
|
-40
|
-47
|
-70
|
-88
|
-96
|
-104
|
-109
|
-113
|
-116
|
-50
|
-50
|
-57
|
-85
|
-99
|
-110
|
-118
|
-125
|
-129
|
-132
|
Wind
Scale:
During my many years as a
scout leader I've found that the Wind Scale they teach
the scouts in their field book is one of the best to help
you determine wind chill.
| Description |
Wind Speed MPH |
| Smoke or Steam Rising Up |
0
|
| Smoke or Steam Drifting |
1-3
|
| Leaves Rustle/Flag Stir |
4-7
|
| Leaves and Twigs Move |
8-12
|
| Branches move/ Flag Flaps |
13-18
|
| Small Trees Sway/ Flag Ripples |
19-24
|
| Large Branches Move/Flag Beats |
25-31
|
| Whole Tree Moves/ Flag Stands Fully
Extended |
32-38
|
|