Good tubing on the Mill River in Northampton, MA, USA is defined as: temperature at least 76°F, chance of precipitation 30% or less, flow rate between 120 and 250 cubic feet per second.
| hour | temperature | precipitation | flow rate (cfps) |
|---|---|---|---|
| 3 am | 40°F | 78% | 254 |
| 4 am | 39°F | 74% | 251 |
| 5 am | 38°F | 71% | 247 |
| 6 am | 37°F | 62% | 244 |
| 7 am | 37°F | 54% | 240 |
| 8 am | 36°F | 45% | 237 |
| 9 am | 36°F | 33% | 233 |
| 10 am | 36°F | 20% | 230 |
| 11 am | 36°F | 16% | 226 |
| 12 pm | 35°F | 11% | 223 |
| 1 pm | 35°F | 17% | 219 |
| 2 pm | 35°F | 24% | 216 |
The photo above was taken on Sunday, August 28, 2011, at noon. The flow rate at that time was 4,380 cubic feet per second. It peaked a couple hours later at 7,020 cfps. Not good tubing!