Big Take: The Evolving Economics of Flood Protection
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CBS News
3 hours ago
- CBS News
Maps show U.S. heat advisories, high temperatures as heat dome moves east
The extreme heat that has baked much of the central United States this week is slowly shifting east ahead of the weekend, forecasters said. More than 130 million Americans across at least 20 states are under heat alerts on Thursday. Parts of the Midwest, including the Corn Belt, have felt the high temperatures for multiple days. Temperatures on Thursday are forecast to be 10 to 15 degrees above average for this time of year with feels-like temperatures over 100 degrees expected in multiple areas. Some parts of the Mississippi Valley will continue to see high temperatures over 90 degrees for a few more days, even as the heat dome moves over parts of the Northeast. A heat dome happens when hot air is trapped over an area due to a persistent high pressure system, William Gallus, a professor of atmospheric science at Iowa State University, said. Heat domes can last for days to weeks and can stretch over multiple states. With extreme heat in the Corn Belt, a region including parts of the Plains and Central Mississippi Valley, a phenomenon known as corn sweat has made the humidity worse, experts said. "There are pores on the bottom side of the leaves," Iowa state climatologist Justin Glisan told CBS News national correspondent Lana Zak. "And that's where oxygen is released, but also water vapor." The process can add up to 10 degrees to the feels-like temperature, Glisan said, because just 1 acre of corn can release as much as 4,000 gallons of water into the air per day. Iowa has around 13 million acres of corn.
Yahoo
3 hours ago
- Yahoo
130 million people on alert as hot, sticky weather expected from Texas to Maine
At least 130 million people from Texas to Maine are under alert for dangerous heat and humidity over the next few days. Hot and sticky temperatures will make it feel as high as 115 degrees in parts of the Mississippi River Valley. Even Niagara Falls will get no relief from the sweltering conditions; the tourist destination will feel like the mid-to-upper 90s on Thursday. The heat index in Chicago, which factors in humidity, will make it feel in the triple digits and nighttime and early-morning temperatures will provide little comfort. As of 4 a.m. Thursday, the actual temperature was 80 degrees, or 85 with the heat index. Texas will be just as hot on Thursday, as the heat index is expected to make it feel 107. Up north in Detroit, it's forecast to feel 102. Dangerous heat will spread to the Mid-Atlantic and Northeast as temperatures in the I-95 corridor from Washington, D.C., to Portland, Maine, will make it feel like it's in the mid-90s on Thursday. Maine is under a heat advisory mainly for Friday as the heat index will make Portland, Maine, feel like it's 100 degrees. New York City, Boston and Philadelphia are also bracing for extreme temperatures. On Friday, the feels-like temperature is expected to be reach 104 in New York City, 103 in Boston, 106 in Philadelphia and 109 in Washington, D.C., and Baltimore. Meanwhile, the Midwest and the Southeast is expected to see hot and humid weather stretch into the weekend and into early next, as the heat indices are expected to make it feel 110 degrees in some parts. MORE: Congressional committees push back on Trump administration's proposed NOAA budget cuts Most of the Southeast, including Atlanta, is expected to see a level four out four "extreme heat risk" on Monday and Tuesday as a potentially life-threatening heat wave continues in the region. Besides the heat, the Midwest, specifically Kansas and Missouri, is expected to see a summer flash flooding continue. Strong thunderstorms on Thursday could cause flooding across the region, which is still recovering from flash floods earlier this week. MORE: Body of missing woman found as death toll from Texas floods reaches at least 136 Heavy thunderstorms are expected to develop over the Midwest on Thursday afternoon and through the night, with rainfall totals forecast to reach 2 to 4 inches or higher in some areas along the I-70 corridor. The Kansas City region may see the brunt of storms with multiple rounds of heavy rain possible.
Yahoo
3 hours ago
- Yahoo
130 million people on alert as hot, sticky weather expected from Texas to Maine
At least 130 million people from Texas to Maine are under alert for dangerous heat and humidity over the next few days. Hot and sticky temperatures will make it feel as high as 115 degrees in parts of the Mississippi River Valley. Even Niagara Falls will get no relief from the sweltering conditions; the tourist destination will feel like the mid-to-upper 90s on Thursday. The heat index in Chicago, which factors in humidity, will make it feel in the triple digits and nighttime and early-morning temperatures will provide little comfort. As of 4 a.m. Thursday, the actual temperature was 80 degrees, or 85 with the heat index. Texas will be just as hot on Thursday, as the heat index is expected to make it feel 107. Up north in Detroit, it's forecast to feel 102. Dangerous heat will spread to the Mid-Atlantic and Northeast as temperatures in the I-95 corridor from Washington, D.C., to Portland, Maine, will make it feel like it's in the mid-90s on Thursday. Maine is under a heat advisory mainly for Friday as the heat index will make Portland, Maine, feel like it's 100 degrees. New York City, Boston and Philadelphia are also bracing for extreme temperatures. On Friday, the feels-like temperature is expected to be reach 104 in New York City, 103 in Boston, 106 in Philadelphia and 109 in Washington, D.C., and Baltimore. Meanwhile, the Midwest and the Southeast is expected to see hot and humid weather stretch into the weekend and into early next, as the heat indices are expected to make it feel 110 degrees in some parts. MORE: Congressional committees push back on Trump administration's proposed NOAA budget cuts Most of the Southeast, including Atlanta, is expected to see a level four out four "extreme heat risk" on Monday and Tuesday as a potentially life-threatening heat wave continues in the region. Besides the heat, the Midwest, specifically Kansas and Missouri, is expected to see a summer flash flooding continue. Strong thunderstorms on Thursday could cause flooding across the region, which is still recovering from flash floods earlier this week. MORE: Body of missing woman found as death toll from Texas floods reaches at least 136 Heavy thunderstorms are expected to develop over the Midwest on Thursday afternoon and through the night, with rainfall totals forecast to reach 2 to 4 inches or higher in some areas along the I-70 corridor. The Kansas City region may see the brunt of storms with multiple rounds of heavy rain possible.
