危险的空气质量将是本周早些时候数百万美国人要处理的一个重要问题，因为大火继续在加拿大各地蔓延。
据气象学家称，大部分烟雾来自魁北克省新的野火。
防火非营利组织SOPFEU的数据显示，到目前为止，2023年该省已发生近400起森林火灾，而10年平均水平为197起。据加拿大广播公司报道。
卫星图像显示，从芝加哥和印第安纳波利斯到辛辛那提的地区上空烟雾弥漫，威斯康星州的大部分地区正在经历地表附近的危险空气。
这种近地表的烟雾，意味着人们可以呼吸到它，将在周日从威斯康星州延伸到西弗吉尼亚州。
中西部的干燥天气和阵风增加了野火的风险，密歇根州的大部分地区都处于红色预警下。
不建议室外焚烧，因为消防队员在过去几天里一直在努力扑灭几起火灾。
根据密歇根州自然资源部的数据，周六开始的密歇根州荒野小径火灾已经烧毁了约2400英亩，85%的火势得到了控制。
根据气象学家的说法，老年人、儿童、患有肺病或心脏病的人以及孕妇不应该参加长时间或高强度的运动。
近地面烟雾将在周二早上加剧，影响从纳什维尔到印第安纳波利斯，匹兹堡到纽约市，康涅狄格州哈特福德到佛蒙特州伯灵顿的地区。
2023年6月4日野火烟雾预报天气图。
美国广播公司
尽管距离夏季正式开始越来越近，但东北部的大部分地区在周日却异常凉爽，新英格兰的大部分地区气温高达50至60度。
本周末持续的多云和阵雨天气导致气温比常年同期低20到30度。
预计未来一周气温将稳步回升至70多度。
纽约和匹兹堡都预测周二会达到81度。
与此同时，在热带地区，大西洋飓风季节的第一个命名风暴——热带风暴Arlene已经消失。然而，南佛罗里达仍然有阵雨。
由于迈阿密和劳德代尔堡等城市的降雨量将增加1到2英寸，洪水观察将至少持续到周日晚上。
Canadian fires bring dangerous air quality to the US, impacting millions of Americans
Dangerous air quality will be a significant issue for millions of Americans to deal with early this week, as fires continue to spark throughout Canada.
Much of that smoke is coming from new wildfires in the Quebec province, according to meteorologists.
There have been nearly 400 forest fires in the province so far in 2023, while the 10-year average is 197, data from the fire prevention nonprofit SOPFEU shows,according to the Canadian Broadcasting Corporation.
Satellite images show smoke moving over areas from Chicago and Indianapolis to Cincinnati, and much of Wisconsin is experiencing dangerous air near the surface.
This near-surface smoke, meaning people would be able to breathe it, will stretch from Wisconsin to West Virginia on Sunday.
Dry weather and gusty winds in the Midwest have increased the wildfire risk, with a large portion of Michigan under a red flag warning.
Outdoor burning is not recommended, as firefighters have been working to put out several fires over the last few days.
The Wilderness Trail Fire in Michigan, which began on Saturday, has burned about 2,400 acres and is 85% contained, according to the Michigan Department of Natural Resources.
Older adults, kids, people with lung or heart disease and those who are pregnant should not partake in lengthy or heavy exertion, according to meteorologists.
The near-surface smoke will intensify by Tuesday morning, impacting areas from Nashville to Indianapolis, Pittsburgh to New York City and Hartford, Connecticut, to Burlington, Vermont.
Despite inching closer to the official start of summer, a large part of the Northeast is unseasonably cool on Sunday, with much of New England looking at high temperatures in the 50s and 60s.
A persistent cloudy and showery stretch of weather this weekend is leading to temperatures that are 20 to 30 degrees below normal for this time of year.
Temperatures are expected to steadily rebound into the 70s headed through the upcoming week.
New York and Pittsburgh are both forecast to reach 81 degrees on Tuesday.
Meanwhile, in the tropics, Tropical Storm Arlene, the Atlantic hurricane season's first named storm, has fizzled out. However, a showery pattern remains for south Florida.
A flood watch will remain in effect until at least Sunday evening due to an additional 1 to 2 inches of rain in cities like Miami and Fort Lauderdale.
