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 | 68°F | 28% | 38 |
| 5 pm | 67°F | 39% | 37 |
| 6 pm | 69°F | 49% | 36 |
| 7 pm | 66°F | 46% | 36 |
| 8 pm | 65°F | 29% | 35 |
| 9 pm | 63°F | 28% | 34 |
| 10 pm | 59°F | 45% | 34 |
| 11 pm | 57°F | 33% | 33 |
| 12 am | 55°F | 31% | 32 |
| 1 am | 55°F | 16% | 32 |
| 2 am | 53°F | 13% | 31 |
| 3 am | 51°F | 8% | 30 |
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!