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) |
|---|---|---|---|
| 12 am | 17°F | 0% | 48 |
| 1 am | 18°F | 1% | 49 |
| 2 am | 18°F | 2% | 49 |
| 3 am | 18°F | 3% | 49 |
| 4 am | 19°F | 5% | 49 |
| 5 am | 19°F | 9% | 50 |
| 6 am | 20°F | 11% | 50 |
| 7 am | 20°F | 12% | 50 |
| 8 am | 21°F | 10% | 51 |
| 9 am | 22°F | 12% | 51 |
| 10 am | 24°F | 12% | 51 |
| 11 am | 27°F | 13% | 52 |
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!