Sioux County, Nebraska FirstAlerts

Everything reported for Sioux County and within 40 miles of it, at every level. Warnings and official records name the county they apply to, which is the level most of them are issued at.

• Severe WeatherAug 15, 2026, 4:24 p.m. ETWyoming, United States

  NWS Cheyenne Issues Flood Watch for Portions of Nebraska and Wyoming

  A Flood Watch is in effect on August 15, 2026, from 2:00 p.m. to 10:00 p.m. for 15 zones across Nebraska and Wyoming.

• Disaster DeclarationsAug 20, 2026, 4:52 p.m. ETDawes County, Nebraska, United States

  Dawes County Fire Management Assistance Declaration Announced

  Federal fire management assistance declared for Dawes County, Nebraska, covering the South Fork Fire.

• Disaster DeclarationsAug 20, 2026, 4:52 p.m. ETSioux County, Nebraska, United States

  Sioux County Fire Management Assistance Declaration Announced

  FEMA has declared a fire management assistance declaration for Sioux County, Nebraska, covering the South Fork Fire.