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 am | 58°F | 22% | 213 |
| 9 am | 61°F | 36% | 225 |
| 10 am | 64°F | 38% | 237 |
| 11 am | 66°F | 38% | 248 |
| 12 pm | 67°F | 26% | 260 |
| 1 pm | 66°F | 23% | 272 |
| 2 pm | 66°F | 20% | 283 |
| 3 pm | 66°F | 18% | 295 |
| 4 pm | 65°F | 21% | 307 |
| 5 pm | 63°F | 22% | 318 |
| 6 pm | 62°F | 30% | 330 |
| 7 pm | 61°F | 32% | 342 |
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!