Heat — Massac, Illinois

2024-06-29 · Massac, Illinois

Wider weather episode

Partial clearing of skies, along with moisture advection in southerly flow, resulted in heat indices reaching 105 to 115 degrees across far Southern Illinois and along the Wabash River during the afternoon. The highest heat index in Southern Illinois was 115 degrees at the Cairo Regional Airport AWOS.

Source: NOAA Storm Events Database, event_id 1193506. Narrative written by the NWS forecast office that issued the report.