Wind Speed
|
| Code |
Description |
| 0 |
Calm - (<1 mph) smoke rises vertically |
| 1 |
Light Air - (1-3 mph) smoke drifts, weather vane inactive |
| 2 |
Light Breeze - (4-7 mph) leaves rustle, can feel wind on face |
| 3 |
Gentle Breeze - (8-12 mph) leaves and twigs move around, small flag extends |
| 4 |
Moderate Breeze - (13-18 mph) moves thin branches, raises loose papers |
| 5 |
Fresh Breeze - (> 19 mph) small trees begin to sway |
