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) |
|---|---|---|---|
| 6 pm | 80°F | 23% | 81 |
| 7 pm | 79°F | 19% | 77 |
| 8 pm | 77°F | 15% | 72 |
| 9 pm | 74°F | 10% | 67 |
| 10 pm | 70°F | 1% | 62 |
| 11 pm | 68°F | 1% | 58 |
| 12 am | 67°F | 0% | 53 |
| 1 am | 67°F | 0% | 48 |
| 2 am | 66°F | 0% | 44 |
| 3 am | 65°F | 0% | 39 |
| 4 am | 63°F | 0% | 34 |
| 5 am | 62°F | 0% | 30 |
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!