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) |
|---|---|---|---|
| 7 pm | 52°F | 2% | 149 |
| 8 pm | 48°F | 3% | 148 |
| 9 pm | 46°F | 3% | 147 |
| 10 pm | 42°F | 5% | 146 |
| 11 pm | 41°F | 9% | 145 |
| 12 am | 40°F | 9% | 144 |
| 1 am | 40°F | 8% | 143 |
| 2 am | 40°F | 8% | 142 |
| 3 am | 40°F | 11% | 141 |
| 4 am | 40°F | 11% | 140 |
| 5 am | 40°F | 14% | 139 |
| 6 am | 41°F | 17% | 138 |
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!