Excessive Heat — Lake, South Dakota

2024-08-25 · Lake, South Dakota

Event narrative

Afternoon and early evening heat index values reached as high as 112 degrees at Madison.

Wider weather episode

A strong ridge of high pressure locked in very warm and extremely humid conditions. Dew points in the upper 70s and lower 80s combined with temperatures in the upper 80s to lower 90s to produce daily heat index values from 100 to 120 degrees.

Source: NOAA Storm Events Database, event_id 1215094. Narrative written by the NWS forecast office that issued the report.