A Code Orange air quality alert will be in effect on Saturday for Jefferson and Shelby counties.
The Alabama Department of Environmental Management said ground-level ozone concentrations could be high enough tomorrow to affect sensitive groups.
Those include people with respiratory conditions and children. The general public is not expected to be affected.
An area of high pressure nearby will cause very hot temperatures and light winds in Alabama on Saturday, which could help to keep pollutants closer to the ground.
Highs are expected to peak in the mid- to upper 90s in the Birmingham metro area Saturday.
Here’s the forecast for Saturday for all of Alabama:
Here are the forecast high temperatures for Saturday in Alabama.NWS
Some recommendations for air quality alert days from ADEM:
* Conserve electricity and set your air conditioner at a higher temperature.
* Limit driving and combine errands.
* Avoid use of gas-powered lawn and garden equipment.
* Refuel vehicles after 6 p.m.
* Limit engine idling.
* Use household, workshop, and garden chemicals in ways that keep evaporation to a minimum, or try to avoid them when poor air quality is forecast.
* If breathing becomes difficult, move indoors.
For more information on what to do on an air quality alert day, visit the Environmental Protection Agency at airnow.gov.