Excessive Heat — Chickasaw, Iowa

2024-08-26 · Chickasaw, Iowa

Event narrative

Anomalously warm air temperatures and high humidity allowed the heat index to reach 108 degrees at an Iowa Department of Transportation surface observation station near New Hampton on August 26th.

Wider weather episode

After a relatively mild summer, a period of excessive heat impacted much of the region prompting air temperatures to reach well above 90 degrees during the afternoon on August 26th. This combined with dewpoints as high as 80 degrees in some locations allowed for heat indices to climb above 110 degrees on August 26th.

Source: NOAA Storm Events Database, event_id 1213439. Narrative written by the NWS forecast office that issued the report.