Canadian wildfire smoke tinting moon and sun in St. Louis

Posted: Jun 30, 2015 / 09:17 AM CDT

Updated: Jun 30, 2015 / 09:17 AM CDT

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ST. LOUIS, MO (KTVI)- Notice that haze? Well, that’s smoke and it’s getting thicker over the central United States. The smoke is coming from wildfires in Alaska and the Canadian provinces of Alberta and Saskatchewan and being carried southward on upper level winds.

Many noticed the red appearance of the moon overnight and the sun Tuesday morning. The particles of smoke in the air scatter the light, allowing the longer red wavelengths to be seen more than the typical, shorter blue.

Smoke is getting thicker over the Central U.S. #CanadaFires pic.twitter.com/P8qf280J63

— NWS Des Moines (@NWSDesMoines) June 29, 2015

By the way, the haze is thanks to wildfires in Canada. Smoke from multiple fires in Saskatchewan dropping in on the northwest flow. #stlwx

— Angela Hutti (@AngWxGrl) June 30, 2015