News from our Blog
Image description: This map shows tornado tracks from 1950 to 2006. Stronger tornadoes appear as brighter lines.
The map was created by John Nelson of IDV Solutions using data that’s available on Data.gov. Learn more about the map.
Image description: This color-coded map shows how persistent, scorching heat in the central and eastern regions of the United States shattered long-standing temperature records last month, making it the fourth warmest July nationally. In the South, the heat exacerbated drought conditions as dry as the historic droughts of the 1930s and 1950s, though not as long lived. The average U.S. temperature was 77 degrees F, which is 2.7 degrees above average. Learn more about this historic heatwave.
Image description: Before-and-after images show some of the results of recent intense Missouri River flooding near the city of Hamburg, Iowa (indicated by “A”). A closer look at the NASA image, acquired on July 17, shows that the brown sediment-choked waters went right up to the city limits — but not in. Hamburg was saved by its final defense, a 2-mile levee built with the U.S. Army Corps of Engineers and now under control of the city. Meanwhile, Americorps volunteers are helping to monitor the levee by checking for signs of weakness and other dangers.
Photo used with permission from Jonathan Rahmani.
The new center of the U.S. population is Plato, Missouri, according to 2010 census data. With each new census, a new center of the U.S. population emerges. Over the years, it has continually moved west, as the population moved off the east coast. For the first census, in 1790, the center of population was Chestertown, Maryland.
Use the interactive map from the Census Bureau to see how the center of population has changed over the years.