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 pm | 79°F | 4% | 45 |
| 10 pm | 75°F | 4% | 44 |
| 11 pm | 74°F | 5% | 43 |
| 12 am | 73°F | 5% | 41 |
| 1 am | 72°F | 8% | 40 |
| 2 am | 69°F | 12% | 39 |
| 3 am | 69°F | 16% | 38 |
| 4 am | 68°F | 13% | 37 |
| 5 am | 67°F | 10% | 36 |
| 6 am | 68°F | 7% | 35 |
| 7 am | 69°F | 6% | 34 |
| 8 am | 70°F | 6% | 32 |
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!