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) |
|---|---|---|---|
| 8 pm | 49°F | 55% | 39 |
| 9 pm | 48°F | 52% | 41 |
| 10 pm | 48°F | 51% | 43 |
| 11 pm | 47°F | 53% | 45 |
| 12 am | 46°F | 57% | 47 |
| 1 am | 46°F | 67% | 49 |
| 2 am | 45°F | 67% | 50 |
| 3 am | 44°F | 52% | 52 |
| 4 am | 45°F | 40% | 54 |
| 5 am | 45°F | 20% | 56 |
| 6 am | 42°F | 17% | 58 |
| 7 am | 44°F | 22% | 60 |
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!