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 am | 21°F | 5% | 108 |
| 7 am | 20°F | 5% | 104 |
| 8 am | 20°F | 4% | 100 |
| 9 am | 21°F | 4% | 95 |
| 10 am | 22°F | 4% | 91 |
| 11 am | 23°F | 6% | 87 |
| 12 pm | 24°F | 7% | 82 |
| 1 pm | 24°F | 7% | 78 |
| 2 pm | 25°F | 5% | 74 |
| 3 pm | 26°F | 5% | 69 |
| 4 pm | 24°F | 6% | 65 |
| 5 pm | 24°F | 5% | 61 |
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!