АНУ-ын нутаг дэвсгэр даяар ойн түймрийн утаа, үер усны аюул зэрэг цаг агаарын эрс тэс үзэгдлүүд нэгэн зэрэг тохиолдож, сая сая иргэдийн аюулгүй байдалд эрсдэл учруулаад байна.
Баруун бүсийн 15 мужид 68 томоохон ойн түймэр идэвхтэй үргэлжилж байгаа бөгөөд аянга цахилгааны улмаас шинээр 17 түймэр нэмж гарчээ. Гал түймрийг унтраахаар 17,400 гаруй алба хаагч, 140 нисдэг тэрэг болон цэргийн C-130 агаарын хөлгийн багууд ажиллаж байна. Энэ жил нийт 3.72 сая акр талбай шатсан нь өнгөрсөн жилийн мөн үеийнхээс нэг сая акрээр илүү үзүүлэлт болоод байна.
Түймрийн утаа Их нууруудаас Вашингтон хүртэлх бүс нутгийг бүрхэж, агаарын чанар эрс муудлаа. Үүний улмаас Чикаго хотын агаарын чанар дэлхийд хоёрдугаарт эрэмбэлэгдэхүйц бохирдож, эрх баригчид цэцэрлэгт хүрээлэн, далайн эрэг орчмын үйл ажиллагааг хязгаарлаад байна. Мэргэжилтнүүдийн үзэж байгаагаар уур амьсгалын өөрчлөлтөөс үүдэлтэй тийрэлтэт урсгалын өөрчлөлт нь ийм төрлийн гамшигт үзэгдлийг удаан хугацаагаар тогтоон барьж, хор уршгийг нь нэмэгдүүлж байна.
Үүний зэрэгцээ Техас мужийн Хилл Каунтри бүс нутагт гурван өдөр дараалан үргэлжилсэн хүчтэй аадар борооны улмаас үер бууж, хоёр хүн амиа алдсан байна. Засаг захиргаанаас аврах ажиллагааг эрчимжүүлж, олон зуун иргэнийг үерийн бүсээс нүүлгэн шилжүүлээд байгаа бөгөөд ирэх долоо хоногоос цаг агаар халуун, хуурай болох төлөвтэй байна.
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The United States is grappling with a trifecta of extreme weather events, as wildfire smoke chokes the East, floodwaters inundate the South, and new blazes ignite across the West.
Millions of Americans are facing hazardous conditions, with authorities urging residents to remain indoors amidst the widespread environmental challenges.
From the Great Lakes down to Washington, D.C., a thick blanket of wildfire smoke descended on Friday, creating unhealthy air quality. Simultaneously, Texas’s Hill Country has endured its third consecutive day of severe flooding.
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The situation is particularly dire in the West, where 68 large wildfires are now active across 15 states. The Pacific Northwest saw a significant escalation overnight, with 17 new fires erupting following a series of lightning strikes, making it the nation’s most active fire region, according to the National Interagency Fire Center (NIFC).
The battle against these blazes involves over 17,400 personnel, supported by 140 helicopters and four military C-130 air tanker crews deployed nationwide. Record-low snowpack in the Mountain West and persistent drought conditions have pushed fuel levels to extreme dryness, creating fire-prone environments typically not seen until mid-August, the NIFC reported.
So far this year, nearly 3.72 million acres have burned across the country, surpassing last year’s mid-July total by more than a million acres.
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Jesse Berman, a professor at the University of Minnesota School of Public Health whose research focuses on how extreme weather affects health, said simultaneous disasters like those playing out now can make them more dangerous.
“These are compound events, and that can sometimes make the impacts of them far worse than what we would experience with any one of these events individually,” Berman said.
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University of Pennsylvania climatologist Michael Mann said the extreme weather events were linked by a wave pattern in the jet stream that may be a phenomenon known as “resonance,” which occurs when large waves in the jet stream become amplified and trapped, causing extreme weather to persist over a region for longer periods, creating more chaos on the ground.
Mann said his research shows that human-driven climate change has led to a tripling of these stalled jet stream events since the 1950s.
Hazy Skies
The smoke from wildfires in Canada has turned skylines from Minneapolis to Washington orange-brown and pushed dangerous air quality onto tens of millions of people across the Midwest, Northeast and Mid-Atlantic.
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Chicago’s air quality was second-worst in the world on Friday, according to Swiss air quality technology company IQAir. The conditions prompted local officials to close parks and beaches along Lake Michigan for the immediate future, cancelling or moving parks department activities indoors.
The closures limited options for residents without air conditioning, which, according to the Civic Data Atlas comes to about 4% of citywide households. Temperatures in the city were expected to reach above 90 degrees Fahrenheit (32 degrees Celsius) with heat index values up to 97 F, the National Weather Service said, activating the city’s community service cooling centers.
Detroit, Minneapolis and Toronto ranked among the most polluted cities on Earth earlier in the week.
A heat dome parked over the Carolinas has set up northwesterly winds funneling smoke from Minnesota and Canada into the country’s most populous corridor. Rain forecast for the weekend could finally begin clearing the air.
Texas gets soaked
There was no such relief yet in Texas, where the Hill Country endured a third consecutive day of catastrophic flash flooding, where more than 27 inches of rain have fallen in some areas since Tuesday, according to the National Weather Service.
Two people are confirmed to have died in the state in this week’s floods: a 65-year-old man swept away in his RV near the town of Comfort, and a 74-year-old man who drove into floodwaters in Uvalde County, according to Governor Greg Abbott. Rescuers have pulled hundreds of people from rising water so far this week.
The NWS forecasts rains to begin easing in Texas on Friday, with hot and dry weather expected in the coming week.
