Cold/Wind Chill — Aurora, South Dakota

2025-02-11 · Aurora, South Dakota

Event narrative

Wind chill temperatures ranged from 25 to 34 below zero during the early morning hours. A South Dakota State University Mesonet site near White Lake briefly dipped as low as 37 below zero.

Wider weather episode

A mid-level disturbance from Canada moved southeast across the Dakotas into Minnesota February 10-11, resulting in periods of light to moderate snowfall. The highest snow totals, exceeding 6 inches in some places, fell along a narrow west to east band just south of Interstate 90 across southeast South Dakota, coincident with the strongest low level frontogenesis. An arctic air mass followed the snowfall, resulting in many locations reporting wind chill values of 25 below or colder the morning of February 11.

Source: NOAA Storm Events Database, event_id 1238119. Narrative written by the NWS forecast office that issued the report.