CNN-weather/environment

By Taylor Ward and Monica Garrett, CNN (CNN) — A heat wave in parts of the South and Mississippi Valley is peaking and a new one is building in the West on Friday, putting more than 70 million people in those areas under heat alerts ahead of the holiday weekend. More dangerous severe thunderstorms and

By Aya Elamroussi, CNN and Taylor Ward, CNN Meteorologist (CNN) — More than 100 million people are under air quality alerts Friday morning from Wisconsin to Vermont and down to North Carolina as smoke from Canadian wildfires continues to waft south, though conditions are expected to improve slowly into the holiday weekend. Storms Thursday brought

By Angela Fritz, CNN (CNN) — A powerful thunderstorm complex was racing across the Midwest Thursday afternoon, blowing through the harmful smoke from Canada’s wildfires and clearing the air in its wake. The storm – referred to as a bow echo because of its arc-like appearance on radar – has a history of producing wind

By Jennifer Gray, CNN meteorologist (CNN) — A deadly heat wave will worsen in parts of the South today, but relief from the most extreme, record-breaking temperatures arrives in Texas and is on the horizon elsewhere. Parts of Texas have baked in triple-digit heat for more than two weeks, but today is the first day

By Nouran Salahieh and Taylor Ward, CNN (CNN) — More than 55 million people from southern Arizona to the Florida coast are sweltering under a worsening heat wave that is expected to expand its reach this week, bringing more dangerous triple-digit temperatures. Excessive heat warnings, the highest criteria of heat alerts, include Dallas, New Orleans

By Jennifer Gray, CNN meteorologist (CNN) — Parts of Texas have been roasting for more than two weeks and flirting with the state’s record high temperature, and now, temperatures could get even hotter and expand to other areas across the South. “Many areas outside south and south-central Texas (will) experience their most significant heat of

By Jennifer Gray, CNN Meteorologist (CNN) — Summer is notorious for producing punishing heat waves, often referred to as heat domes. A heat dome occurs when a ridge of high pressure builds over an area and doesn’t move for up to a week or more. High pressure results in fair weather with lots of sunshine

By Melissa Alonso, Andy Rose and Dave Alsup, CNN (CNN) — A tornado struck the largest coal mine in the US while workers were in the midst of a shift change Friday in northeast Wyoming, injuring at least 8 people, officials said. The tornado hit the North Antelope Rochelle Mine in Campbell County at around

By Rachel Ramirez, CNN (CNN) — Chris Gloninger spent the last 18 years breaking down Iowa’s latest local weather news. This week, he is making the news. After spending the last two years as chief meteorologist at Des Moines news station KCCI, a CNN affiliate, Gloninger announced Wednesday he is resigning as one of the

By Jennifer Gray, CNN Meteorologist (CNN) — Measuring earthquakes is no easy task, given they strike suddenly and sometimes at global scale. When the Earth’s crust shifts abruptly, an earthquake occurs, with energy radiated out as seismic waves and shaking that’s sometimes experienced by people, buildings and infrastructure. Seismic waves and factors related to the

By Jennifer Gray and Tina Burnside, CNN (CNN) — Nearly 100 people attending a concert Wednesday evening at the Red Rocks Amphitheatre near Denver were injured after being pelted with large hail during severe storms that moved across the area, a fire department said. At least seven people were taken to hospitals with non-life-threatening injuries,

By Alisha Ebrahimji, Elizabeth Wolfe and Dave Alsup, CNN (CNN) — All residents have been accounted for after a tornado ravaged a small town in northwest Texas, killing four people and injuring 10 Wednesday night, officials said. The search, however, continues as crews look for possible visitors or drivers who were in the area when

By Elizabeth Wolfe and Robert Shackelford, CNN (CNN) — Tropical Storm Bret continued to strike eastern Caribbean islands early Friday, pelting the region with stiff winds and heavy rain that could cause flooding and dangerous surf. Bret, earlier packing near-hurricane-force sustained winds of 70 mph, weakened slightly to 60 mph with even higher gusts and

By Jennifer Gray, CNN Meteorologist (CNN) — Tropical Storm Bret again strengthened slightly during the day Wednesday and is forecast to reach the Lesser Antilles on Thursday as a strong tropical storm. Now packing 65 mph winds, the storm is likely already near its peak intensity. “Little change in strength is forecast during the next

By Chris Boyette and Kelly Murray, CNN (CNN) — Following a weekend of devastating storms, hundreds of thousands of customers are without power in areas of the South and Southwest now facing scorching heat. As of Tuesday, more than 38 million Americans are under active extreme heat advisories, watches, and warnings, according to the National

By Kendall Trammell and Judson Jones, CNN (CNN) — There’s a reason these maps are called spaghetti models. Just take a look. There are lines all over the place, like a plate of spaghetti. The simple lines actually come from some of the fastest computers in the world, making billions of computations. Also known as