Station Data
Click below for wind rose diagrams, modal direction data, and snow transport data for Grand Rapids.
Wind Roses, Frequency Distribution (%)
Modal Direction
See the degree vs. cardinal direction table
| Oct | Nov | Dec | Jan | Feb | Mar | Oct-Mar |
|---|---|---|---|---|---|---|
| 160 | 310 | 320 | 310 | 300 | 310 | 310 |
Snow Transport
Potential Snow Transport (Qupot) over Snow Accumulation Season [kg/m] by Wind Speed Class [kts]
| Direction | 11-16 | 17-22 | 23-27 | 28-33 | >34 | Total |
|---|---|---|---|---|---|---|
| N | 580 | 204 | 784 | |||
| NNE | 50 | 50 | ||||
| NE | ||||||
| ENE | ||||||
| E | 8 | 8 | ||||
| ESE | 109 | 109 | ||||
| SE | 622 | 68 | 690 | |||
| SSE | 1,723 | 476 | 2,199 | |||
| S | 1,378 | 442 | 1,820 | |||
| SSW | 319 | 68 | 387 | |||
| SW | 50 | 136 | 186 | |||
| WSW | 92 | 34 | 126 | |||
| W | 445 | 102 | 547 | |||
| WNW | 2,605 | 1,122 | 3,727 | |||
| NW | 3,967 | 3,297 | 162 | 186 | 7,611 | |
| NNW | 2,689 | 2,243 | 4,933 | |||
| Total | 23,179 |