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) |
|---|---|---|---|
| 5 am | 37°F | 24% | 76 |
| 6 am | 37°F | 31% | 77 |
| 7 am | 37°F | 34% | 77 |
| 8 am | 38°F | 41% | 77 |
| 9 am | 39°F | 40% | 77 |
| 10 am | 40°F | 35% | 77 |
| 11 am | 41°F | 30% | 78 |
| 12 pm | 42°F | 28% | 78 |
| 1 pm | 43°F | 25% | 78 |
| 2 pm | 43°F | 20% | 78 |
| 3 pm | 45°F | 15% | 78 |
| 4 pm | 46°F | 11% | 79 |
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!