| Yellowstone River | 17,800 cfs | HIGH |
| Gallatin River | 1,430 cfs | NORMAL |
| Madison River | 383 cfs | NORMAL |
| Jefferson River | 2,770 cfs | NORMAL |
| Clark Fork River | 13,400 cfs | NORMAL |
| Milk River | 486 cfs | NORMAL |
| Musselshell River | 3,250 cfs | NORMAL |
| Big Horn River | -- | |
| Bitterroot River | 6,460 cfs | NORMAL |
| Boulder River | -- | |
| Flathead River | 24,400 cfs | NORMAL |
| Kootenai River | -- | |
| Missouri River (Fort Benton) | -- | |
| Beaverhead River | 91 cfs | HIGH |
| Blackfoot River | 4,730 cfs | NORMAL |
| Gallatin River (upper) | 1,360 cfs | NORMAL |
| Swan River | 8,080 cfs | NORMAL |
| Wade Hampton Creek | -- | |
| Yellowstone River (Billings) | 12,300 cfs | NORMAL |
| Swiftcurrent Creek At Many Glacier Mt | 294 cfs | NORMAL |
| St. Mary River Near Babb Mt | 2,170 cfs | NORMAL |
| St. Mary Canal At St. Mary Crossing Near Babb Mt | 590 cfs | NORMAL |
| Red Rock Cr Ab Lakes, Nr Lakeview, Mt | 58 cfs | NORMAL |
| Red Rock R Bl Lima Reservoir Nr Monida Mt | 49 cfs | HIGH |
| Beaverhead River At Barretts Mt | 575 cfs | NORMAL |
| Beaverhead River At Dillon Mt | 160 cfs | NORMAL |
| Ruby River Above Reservoir Near Alder, Mt | 227 cfs | NORMAL |
| Ruby River Below Reservoir Near Alder, Mt | 418 cfs | NORMAL |
| Ruby River Near Twin Bridges Mt | 58 cfs | HIGH |
| Beaverhead River At Twin Bridges, Mt | 221 cfs | NORMAL |
| Big Hole River Bl Big Lake Cr At Wisdom Mt | 149 cfs | NORMAL |
| Big Hole River Bl Mudd Cr Nr Wisdom Mt | 1,400 cfs | NORMAL |
| Big Hole River Near Wise River Mt | -- | |
| Big Hole River At Maiden Rock Nr Divide Mt | 2,730 cfs | NORMAL |
| Big Hole River Near Melrose Mt | 2,840 cfs | NORMAL |
| Big Hole River Near Glen Mt | 2,760 cfs | NORMAL |
| Big Hole R Bl Hamilton Ditch Nr Twin Bridges, Mt | 2,600 cfs | NORMAL |
| Jefferson River At Parsons Bdg Nr Silver Star, Mt | -999,999 cfs | HIGH |
| Boulder River Near Boulder, Mt | 202 cfs | NORMAL |