Sensors show diminution from 100% two weeks ago as abnormally dry conditions emerge in north-central, southwest Wyoming.
Wyoming sees potential to release water owned by the federal government instead of cutting back use by irrigators, industry and municipalities to meet downstream obligations.
Lawmakers seek “beneficial use” label for drought mitigation, security against downstream demands.
Legislators hoping to build a Wyoming energy complex could more easily divert Green River water under a bill U.S. Sen. John Barrasso advanced last week.
Wyoming biologists seek to determine how drought, energy development, habitat competition and migration barriers may play a role in pronghorn herds that are about half their size as they were 20 years ago.