Yerington - The Lyon County Office of Emergency Management was notified by the Walker River Irrigation District that the West Walker River and Main Stream Walker River may see flows between 2500 Cubic Feet per Second (CFS) and 3000 CFS within the next 24 hours.
Based upon this information OEM conducted a briefing with Lyon County Departments, the City of Yerington, the Nevada Division of Emergency Management, Mineral County Emergency Management, the Lyon County School District, the American Red Cross and the Mason Valley Fire Protection District.
The National Weather service reported that no precipitation is forecasted in the area for the next 48 hours. They also reported that the flows would be substantially lower (1600 CFS to 1800 CFS) due to changing conditions at the diversion for the Topaz Reservoir.
Officials say they anticipate seeing the river rise in Wellington and Smith Valley between 2:00 PM and 3:00 PM this afternoon and rising occurring in Yerington/Mason Valley early tomorrow morning. Lyon County has take precautionary action to notify the residences in Hoye Canyon, Walker River Resort and the Smith Valley Cattle Feeders of potential high water.
Lyon County does not anticipate any major flooding but has provided three locations for the public to get sand and sand bags in the event of low level localized flooding. The locations are:
Yerington/Mason Valley: Mason Town Hall
Smith Valley: Smith Valley Fire Station on Highway 208
Wellington: NDOT Mixing Site on Upper Colony Road
These are precautionary steps only. The Lyon County Office of Emergency Management wants to remind the citizens of southern Lyon County that we experienced peak flows of over 2000 CFS this summer with no major flooding issues. The Lyon County Sheriff's Office will maintain surveillance of the river throughout the next 48 hours. The Lyon County Office of Emergency Management will notify the public of any changes on the Walker River system.