| # |
MPH |
Knots |
Description |
Specifications |
| 0 |
< 1 |
< 1 |
Calm |
Smoke rises vertically. |
| 1 |
1-3 |
1-3 |
Light Air |
Direction of wind shown by smoke drift but not by wind vanes. |
| 2 |
4-7 |
4-6 |
Light Breeze |
Wind felt on face;
Leaves rustle; Wind vanes moved by wind |
| 3 |
8-12 |
7-10 |
Gentle Breeze |
Leaves and small twigs in constant motion; Wind extends light flag. |
| 4 |
13-18 |
11-16 |
Moderate |
Raises dust, loose paper; Small branches moved. |
| 5 |
19-24 |
17-21 |
Fresh |
Small trees begin to sway; Crested wavelets form on inland waters. |
| 6 |
25-31 |
22-27 |
Strong |
Large branches in motion; Whistling heard in telephone wires; Umbrellas
used with difficulty. |
| 7 |
32-38 |
28-33 |
Near Gale |
Whole trees in motion; Inconvenience felt walking against the wind. |
| 8 |
39-46 |
34-40 |
Gale |
Twigs break off trees; Wind generally impedes progress; Mobile homes
may shake. |
| 9 |
47-54 |
41-47 |
Strong Gale |
Slight structural damage occurs; Mobile homes, sheds, roofs, lanais,
and RV's suffer minor damage. |
| 10 |
55-63 |
48-55 |
Storm |
Small trees uprooted; Moderate damage occurs to mobile homes and RV's;
Brick and wood frame houses receive minor structural and roof damage;
Some signs blown down. |
| 11 |
64-73 |
56-63 |
Violent Storm |
Moderate sized trees uprooted; Large branches snapped off trees;
Chimneys and road signs toppled; Significant mobile home damage;
Power lines downed. |
| 12 |
74-95 |
64-83 |
Hurricane Category 1 |
Mobile homes overturned; Large trees and branches downed; Moderate
roof damage to wood and brick homes; Minor pier damage. |
Follow us on X
Follow us on Facebook
Follow us on YouTube
TBW RSS Feed