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 am | 33°F | 0% | 120 |
| 5 am | 32°F | 1% | 118 |
| 6 am | 32°F | 2% | 116 |
| 7 am | 34°F | 2% | 114 |
| 8 am | 34°F | 3% | 112 |
| 9 am | 37°F | 8% | 110 |
| 10 am | 40°F | 8% | 108 |
| 11 am | 42°F | 8% | 106 |
| 12 pm | 44°F | 5% | 104 |
| 1 pm | 45°F | 4% | 102 |
| 2 pm | 47°F | 4% | 100 |
| 3 pm | 49°F | 4% | 98 |
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!