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 | 81°F | 6% | 36 |
| 8 pm | 79°F | 8% | 36 |
| 9 pm | 76°F | 10% | 35 |
| 10 pm | 74°F | 19% | 34 |
| 11 pm | 73°F | 28% | 34 |
| 12 am | 73°F | 37% | 33 |
| 1 am | 71°F | 46% | 33 |
| 2 am | 70°F | 55% | 32 |
| 3 am | 70°F | 64% | 32 |
| 4 am | 69°F | 70% | 31 |
| 5 am | 71°F | 75% | 31 |
| 6 am | 71°F | 75% | 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!