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 | 80°F | 39% | 18 |
| 8 pm | 80°F | 24% | 19 |
| 9 pm | 77°F | 8% | 21 |
| 10 pm | 73°F | 6% | 23 |
| 11 pm | 71°F | 3% | 24 |
| 12 am | 69°F | 2% | 26 |
| 1 am | 68°F | 1% | 28 |
| 2 am | 67°F | 1% | 29 |
| 3 am | 65°F | 2% | 31 |
| 4 am | 64°F | 1% | 32 |
| 5 am | 62°F | 1% | 34 |
| 6 am | 60°F | 1% | 36 |
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!