Sioux City, IA
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Latest Stories from Iowa
Monarch butterflies head to Mexico as scientists unlock new way to track their journey
Each fall, millions of monarchs from Canada and the U.S. travel thousands of miles to reach their winter home in the mountain forests of central Mexico. But this year's migration comes with a new scientific tool that could offer researchers an unprecedented look at the butterflies' movements.
Fall blast sends temperatures tumbling across the US
A powerful cold front is sweeping across parts of the U.S., bringing the late-season heat wave to a screeching halt. Starting this weekend, the cold front is expected to impact much of the central and eastern U.S., causing temperatures to plummet by more than 40 degrees.
Timeline: When will dangerous, tropically enhanced flooding reach the Southwest, Southern Plains and Midwest?
A dangerous multiday flood event is developing across the Four Corners, Southwest and Plains this week as tropical moisture from the remnants of Polo, which made landfall in Baja California late Monday, and Hurricane Rachel spread northward through the week.
Waterlogged Midwest facing intense flooding through Sunday as severe storms lash region
The weeklong firehose of storms aimed at parts of the Midwest, Plains and Ohio Valley will extend through next Monday, putting millions at risk of flash flooding as thunderstorms repeatedly track over the same corridor.