Hot weather is coming to the Miami Valley this weekend — and it will stick around until next early week.
The heat index could hit 100 degrees on Sunday and Monday in the Miami Valley. The heat index, also known as apparent temperature, is a combination of the air temperature and the relative humidity—it’s a measurement of how hot it feels. Heat indexes are higher in places with lots of concrete, like the City of Dayton.
“When you have a lot of concrete, you've got buildings, roads, you don't have a lot of green area that absorbs the heat and keeps it at night," says National Weather Service Meteorologist Allen Randall. "I don't know if you've ridden a bike and all of a sudden you go by a wooded area and you feel considerably cooler? It could be like three, four or five degrees cooler as you go into an area that has a lot of trees.”
Public Health Dayton & Montgomery County says it’s important to stay cool and hydrated during extended periods of hot and humid weather. If you have to be outside, drink plenty of water and limit your amount of activity. When the heat index is as high as it’s predicted to be, it can be dangerous — you should seek out air conditioning right away.
Environmental reporter Chris Welter is a corps member with Report for America, a national service program that places journalists into local newsrooms.