Why the sky has been so hazy

  • Haze caused by smoke from Canadian wildfires blowing over the upper Midwest was visible along I-88 west of Elburn Monday.

      Haze caused by smoke from Canadian wildfires blowing over the upper Midwest was visible along I-88 west of Elburn Monday. Paul Valade | Staff Photographer

  • The EPA showed part of the Chicago area as orange, or "unhealthy for sensitive groups," on Monday.

    The EPA showed part of the Chicago area as orange, or "unhealthy for sensitive groups," on Monday.

  • Paul Valade/pvalade@dailyherald.comThe Chicago area's "milky white" sky is caused by smoke from Canadian wildfires blowing over the upper Midwest, which could contribute to worsening air quality on Tuesday. The haze made for an impressive sunset looking from the baseball fields at Lippold Park in Crystal Lake.

    Paul Valade/pvalade@dailyherald.comThe Chicago area's "milky white" sky is caused by smoke from Canadian wildfires blowing over the upper Midwest, which could contribute to worsening air quality on Tuesday. The haze made for an impressive sunset looking from the baseball fields at Lippold Park in Crystal Lake.

 
Daily Herald staff
Updated 7/9/2019 6:08 AM

The Chicago area's "milky white" sky is caused by smoke from Canadian wildfires blowing over the upper Midwest, which could contribute to worsening air quality in the region today.

The smoke originated from fires in western Ontario and eastern Manitoba, making the sky hazy in spite of clear weather, the National Weather Service in Chicago reported on Twitter Monday.

by signing up you agree to our terms of service
                                                                                                                                                                                                                       
 

"The sky may have a milky white look to it, especially over parts of far northern IL," the Twitter post said.

"Could see some of this reach pretty low and maybe even impact air quality some," the weather service said in an earlier Twitter post.

The Environmental Protection Agency reported moderate air quality in most of the Chicago area on Monday, which means pollutants could cause a health concern for a very small number of unusually sensitive people.

But today, much of the Chicago area is expected to see air quality listed as "unhealthy for sensitive groups," which means older people, children and people with lung diseases.

0 Comments
                                                                                                                                                                                                                       
 
Article Comments ()
Guidelines: Keep it civil and on topic; no profanity, vulgarity, slurs or personal attacks. People who harass others or joke about tragedies will be blocked. If a comment violates these standards or our terms of service, click the X in the upper right corner of the comment box. To find our more, read our FAQ.