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 | 33°F | 3% | 201 |
| 7 am | 31°F | 3% | 187 |
| 8 am | 31°F | 3% | 173 |
| 9 am | 32°F | 5% | 158 |
| 10 am | 34°F | 9% | 144 |
| 11 am | 36°F | 8% | 130 |
| 12 pm | 38°F | 11% | 116 |
| 1 pm | 39°F | 15% | 102 |
| 2 pm | 40°F | 23% | 88 |
| 3 pm | 40°F | 31% | 73 |
| 4 pm | 39°F | 31% | 59 |
| 5 pm | 38°F | 26% | 45 |
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!