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) |
|---|---|---|---|
| 4 pm | 79°F | 68% | 269 |
| 5 pm | 79°F | 42% | 233 |
| 6 pm | 79°F | 12% | 197 |
| 7 pm | 78°F | 5% | 160 |
| 8 pm | 75°F | 3% | 124 |
| 9 pm | 72°F | 1% | 88 |
| 10 pm | 70°F | 1% | 52 |
| 11 pm | 68°F | 2% | 16 |
| 12 am | 67°F | 2% | -21 |
| 1 am | 66°F | 2% | -57 |
| 2 am | 64°F | 1% | -93 |
| 3 am | 63°F | 0% | -129 |
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!