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) |
|---|---|---|---|
| 7 pm | 39°F | 52% | 508 |
| 8 pm | 34°F | 32% | 480 |
| 9 pm | 33°F | 16% | 453 |
| 10 pm | 31°F | 9% | 425 |
| 11 pm | 30°F | 7% | 397 |
| 12 am | 28°F | 4% | 369 |
| 1 am | 28°F | 3% | 341 |
| 2 am | 27°F | 5% | 313 |
| 3 am | 27°F | 2% | 286 |
| 4 am | 27°F | 1% | 258 |
| 5 am | 26°F | 1% | 230 |
| 6 am | 26°F | 1% | 202 |
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!