the Umpqua River Basin.
Officials say farmers and ranchers along the South Umpqua River could face restrictions on water supplies as early as this month.
The Roseburg News-Review reports that (http://bit.ly/YzmfwP) flows in the river are expected to be below average or well below average this summer.
The south tributary of the Umpqua River relies mainly on rainfall and often runs low in the summer, but restrictions don't typically kick in until August.
The North Umpqua tributary benefits from snowmelt at higher elevations.
Low snowfall and an early melt across the state have raised concern about irrigation supplies. In the Klamath Basin, a drought has been declared, and some irrigators are facing potential water cutoffs.