Extreme Cold/Wind Chill — South Sioux, Nebraska

2025-01-20 to 2025-01-21 · South Sioux, Nebraska

Event narrative

Overnight low temperatures fell to between -15 F and -20 F across southern Sioux County from 1/20 into 1/21, with daytime highs generally remaining under 0 F during the afternoon on 1/20. The cold temperatures combined with gusty winds resulted in a prolonged period of extreme wind chills under -30 F. Minimum observed wind chill values reached -37 F at the Agate RAWS sensor (3 miles ENE of Agate) at 4:13 AM MST on 1/21.

Wider weather episode

A strong arctic front brought prolonged frigid temepratures to the Nebraska panhandle Friday, January 17 through the early morning of Tuesday, January 21. The coldest temperatures occured Sunday night and Monday night.

Source: NOAA Storm Events Database, event_id 1223954. Narrative written by the NWS forecast office that issued the report.