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 | 55°F | 0% | 17 |
| 10 pm | 53°F | 0% | 18 |
| 11 pm | 52°F | 0% | 18 |
| 12 am | 51°F | 0% | 18 |
| 1 am | 51°F | 2% | 18 |
| 2 am | 51°F | 3% | 19 |
| 3 am | 50°F | 5% | 19 |
| 4 am | 50°F | 5% | 19 |
| 5 am | 50°F | 5% | 19 |
| 6 am | 49°F | 6% | 20 |
| 7 am | 49°F | 12% | 20 |
| 8 am | 49°F | 19% | 20 |
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!