CNN-weather/environment

By Derek Van Dam, CNN Meteorologist (CNN) — Typhoon Mawar was barreling toward Guam early Wednesday, threatening to slam into the US territory as the strongest storm there in decades. The typhoon, which strengthened rapidly in recent days, is posing a “triple threat” of devastation including deadly winds equivalent to at least a Category 4

By Jennifer Gray, CNN Meteorologist The West has taken a dive straight into summer, with temperatures well above those normally seen even at the end of July. Record-breaking temperatures and a heat wave will continue to grip the entire region through much of this week. Yesterday, several locations across the Pacific Northwest broke daily high

By Jennifer Gray, CNN meteorologist More than 50 high temperature records could be broken through Monday as heat builds across the western US and Canada. Temperatures will run as much as 25 degrees above normal, with temperatures possibly hitting 90 degrees this weekend or early next week in Seattle. If this happens, this would be

By Nouran Salahieh, Tina Burnside and Amy Simonson, CNN Close to 100 wildfires raging across the Alberta region of Canada have forced more than 29,000 people to flee in what officials have called an “unprecedented situation” for the province. In the past 24 hours alone, 16 new fires have ignited in Alberta, Wildfire Information Unit

By Dave Alsup, Matt Phillips and Emma Tucker, CNN Almost 25,000 people who live in the Canadian province of Alberta have been evacuated as wildfires rage across the region, which is seeing abnormally hot weather and high winds, emergency officials said Saturday. There are at least 103 wildfires burning across the western province, Alberta Premier

By Jennifer Gray, CNN Meteorologist Tornadoes are one of Earth’s most violent natural forces. They have whipped up in all 50 US states — and across the globe — at various times of year, sometimes causing untold devastation. But despite strides in their study, there’s still so much scientists don’t know about them. “There is

By Jennifer Gray, CNN Meteorologist In the Midwest, the unofficial start to summer with barbecues seems a little far-fetched as people are still shoveling and having to clear snow off their grills before they even think about using them. Another late-season storm is bringing wintry conditions this week to parts of the Midwest and Ohio

By Jennifer Gray, CNN Meteorologist and Madison Richardson, CNN The strength of tornadoes is rated on the Enhanced Fujita, or EF, Scale. The scale runs from 0 to 5 and rates tornadoes after they’ve hit by assessing damage to determine wind speed. Estimates are based on damage to trees, institutional buildings and homes, making it

By Allison Chinchar, CNN Meteorologist More than 20 million people in the Southeast have the potential for severe storms this weekend, including possible tornadoes, waterspouts, hail and damaging winds. “Yet another round or two of severe weather and heavy rainfall is expected over the weekend,” the National Weather Service office in Tallahassee said. “Still some

By Aya Elamroussi and Dave Hennen, CNN Parts of the South are yet again at risk of facing severe storms Friday that could bring damaging winds, large hail and the possibility of tornadoes to millions in north-central Texas. More than 12 million people in Texas, including the Dallas-Fort Worth area, are under a significant risk

By Jennifer Gray, CNN Meteorologist Tornadoes are among the most destructive forces in nature. They can level well-built structures, uproot trees, toss semitrailers — and kill. Tornadoes are most common in the US Plains and Southeast but have been reported in all 50 states. They can happen during the day or at night and in