Both water management and irrigation system maintenance can help maximize forage production with a limited water supply. Currently, in Idaho, reservoir storage is low, giving little carryover water to augment a potentially short snow year.
Given the current snowpack water content and the uncertainty of forecasting future snow accumulation, this looks like a year to manage early-season irrigation carefully to make best use of limited water.
Both alfalfa and corn benefit from adequate early-season soil moisture. In alfalfa, adequate water as the crop is breaking dormancy leads to more early vigor and plant growth.