糖心视频

 Sara Swanson

Smoke from wildfires making Michigan sunsets even more vibrant

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For the better part of a month, Michigan sunsets have been deep shades of red and orange because smoke is obscuring light in the upper atmosphere. (National Weather Service Gaylord)

By Makayla Coffee (Bridge Michigan)

No doubt, Michigan summer sunrises and sunsets are something to behold. And if they鈥檝e been particularly vibrant lately, you can thank 鈥斅爋r blame 鈥斅燙anada and the west coast.

That because wildfires thousands of miles away are making for hazy weather, obscuring clouds and turning typically yellow sunsets into panoramas of orange, red and pink.

While the views have been magnificent, the sunsets also have raised concerns about air quality in Minnesota and other states and聽promoted fears they could accelerate climate change.

鈥淲e really have been dealing kind of off and on with the hazy skies since the beginning of the month, and that is because we have had a persistent area of high pressure out west and that pushed the jet stream pretty far to the north,鈥 said Sabrina Jauernic, a Gaylord-based meteorologist with the National Weather Service.

Here what you need to know.

What is causing this haze?

Wildfires have taken over large swaths of the West, including Montana, Idaho, Oregon and Washington. There are more than聽90 fires total in several states, according to the聽National Interagency Fire Center.

One fire alone, the Bootleg Fire in Oregon, began July 6 and had spread to聽413,762 acres聽by Aug. 2 and was only 84 percent contained.

As smoke from those fires blow east, wildfires are also consuming central Canada, which has experienced聽4,891 wildfires聽as of July 28. That is over 1,000 more wildfires than the 10-year average of 3,753.

鈥淚 would say the vast majority of the smoke over our area right now is stemming from fires in Canada as opposed to like the western United States,鈥 said Jordan Wendt, meteorologist at Marquette National Weather Service.

鈥淭hat mainly due to northwest winds aloft and there quite a few fires just to the east of Lake Winnipeg along the Manitoba and Ontario border. The northwest wind kind of tracks right over upper Michigan and northern Minnesota across Lake Superior.鈥

The smoke from the fires is trapped in the upper atmosphere and winds move it throughout the country.

You can notice the difference most at sunrise and sunset, though, because of the science behind light and wavelengths.

Smoke scatters shorter wavelengths like yellows and blues, but 鈥渓onger wavelengths, like red and orange, can pass directly through the smoke layer,鈥澛燼ccording to the National Weather Service.

鈥淵ou see a red-orange sunset.鈥

What does this mean for Michigan air quality?

The fires have prompted Minnesota and some other states to issue聽air quality alerts.

Last weekend, Michigan also had some issues with air quality, and state officials said there were some spikes in areas like Grand Rapids聽that could be attributed to the wildfires.

Even so, there no cause for concern yet, said Hugh McDiarmid, a spokesperson for the Michigan Department of Environment, Great Lakes and Energy.

鈥淭he upper atmosphere definitely has a thick smoke layer鈥 but not a lot of it seems to be mixing down to the surface air,鈥 he said.

鈥淕enerally 鈥 even though you can see it and even smell it in Michigan, it hasn鈥檛 really had a significant effect on overall air quality in Michigan – at least not yet.鈥

According to聽AirNow Fire and Smoke Map, certain areas of Michigan air quality index are deemed 鈥渕oderate鈥 and 鈥済ood鈥 as of Tuesday.

Although Michigan is not seeing any drastic changes in air quality, areas of the state might be affected differently. Factors such as temperature, wind, the direction of the wind and the terrain could all affect how an area is impacted.

McDiarmid said those with health conditions should take precautions.

鈥淭o this point (the fires have鈥檛) had a big impact, but it one more drop in the bucket of unhealthy air for people who are sensitive to that,鈥 McDiarmid said.

Michigan provides some tools for residents to keep track of air quality, including聽local air quality indexes聽and other聽general information.

How long should Michigan expect to see these effects?

It depends on how long the fires last.

鈥淲hat you are looking for after the wildfires end is high winds just to dilute the smoke and mix it out of the atmosphere,鈥 Wendt said.

鈥淪o that could be in the order of even just a couple of hours or a day. If the winds are pretty strong it will move all of the smoke away and mix it out 鈥 as long as there are no wildfires producing more, of course.鈥

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