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) |
|---|---|---|---|
| 9 am | 63°F | 61% | 32 |
| 10 am | 64°F | 74% | 33 |
| 11 am | 65°F | 88% | 33 |
| 12 pm | 66°F | 91% | 34 |
| 1 pm | 67°F | 88% | 35 |
| 2 pm | 67°F | 90% | 35 |
| 3 pm | 68°F | 92% | 36 |
| 4 pm | 67°F | 94% | 37 |
| 5 pm | 66°F | 76% | 38 |
| 6 pm | 64°F | 68% | 38 |
| 7 pm | 63°F | 60% | 39 |
| 8 pm | 62°F | 51% | 40 |
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!