Excessive Heat — St. Louis, Missouri

2012-07-01 to 2012-07-08 · St. Louis, Missouri

Event narrative

St. Louis County reported 2 heat related deaths. In all cases, air conditioners were not working or not turned on. The County also reported 88 heat related cases treated at area hospital emergency rooms.

Wider weather episode

A record setting heat wave continued from late June into July, finally breaking on July 9. Columbia, MO was over 100 degrees from June 27 - July 7. St. Louis, MO was over 100 degrees from June 28 - July 7. St. Louis had a high of at least 105 degrees from July 4 - 7, peaking at 107 on the 7th. The heat wave was not typical for the area since the air was very dry. The relative humidity would usually fall to around 20% by late mid-afternoon. There were 17 heat related deaths confirmed in the Missouri Counties. St. Louis County Health Department reported 88 heat related injuries treated at area hospitals. The City of St. Louis reported 84 heat related cases at City hospitals.

Source: NOAA Storm Events Database, event_id 399764. Narrative written by the NWS forecast office that issued the report.