ST. LOUIS (KSDK) – The heat picks up Tuesday, and it brings a 2014 milestone.
With temperatures reaching into the mid-90s, the first orange air quality for 2014 has been issued for the day.
The air quality index measures the amount of pollution in the air.
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The orange label means air means members of sensitive groups – such as people with lung disease or asthma – could be affected, according to the U.S. Environmental Protection Agency. The general public is unlikely to be affected.
Tuesday's heat index should be around 100 this afternoon, and there's a chance for storms Tuesday night and Wednesday, according to NewsChannel 5 meteorologist Scott Connell.
Cooler and drier air is expected Thursday into Friday.
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