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 | 28°F | 73% | 59 |
| 6 am | 26°F | 58% | 58 |
| 7 am | 25°F | 40% | 57 |
| 8 am | 23°F | 18% | 56 |
| 9 am | 23°F | 8% | 56 |
| 10 am | 23°F | 3% | 55 |
| 11 am | 21°F | 2% | 54 |
| 12 pm | 21°F | 1% | 53 |
| 1 pm | 21°F | 0% | 52 |
| 2 pm | 21°F | 0% | 51 |
| 3 pm | 21°F | 0% | 50 |
| 4 pm | 19°F | 0% | 49 |
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!