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 | 50°F | 8% | 79 |
| 8 pm | 48°F | 9% | 79 |
| 9 pm | 45°F | 9% | 79 |
| 10 pm | 42°F | 9% | 78 |
| 11 pm | 40°F | 10% | 78 |
| 12 am | 39°F | 11% | 77 |
| 1 am | 37°F | 12% | 77 |
| 2 am | 37°F | 14% | 76 |
| 3 am | 36°F | 15% | 76 |
| 4 am | 37°F | 19% | 76 |
| 5 am | 37°F | 28% | 75 |
| 6 am | 37°F | 37% | 75 |
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!