When you look at the winds aloft report the wind direction usually varies at 3, 6, 9, and 12 thousand feet. Average the wind direction from the winds aloft report and the surface wind. Use that average as a guide. Example:
| Altitude | Direction |
| Surface | 240 |
| 3000 | 260 |
| 6000 | 270 |
| 9000 | 270 |
| 12000 | 290 |
1330 / 5 = 266 Degree