Floods and mudslides in Manitou Springs, Colorado, United States leave at least three people missing and one dead.
The United States Census Bureau announces the country's total population to be over 331 million people, thereby marking the second-slowest growth rate in its history. It also announces that Texas will gain two congressional seats during the redistricting process, with Colorado, Florida, Montana, North Carolina, and Oregon gaining one seat each; California, Illinois, Michigan, New York, Ohio, Pennsylvania, and West Virginia will each lose a seat.
U.S. federal health officials are investigating an outbreak of deadly E. coli bacteria that has sickened 19 people in California, Colorado, Missouri, Montana, Utah, Virginia, and Washington. Preliminary evidence suggests that rotisserie chicken salad made and sold in Costco Wholesale stores is the likely source. This follows a totally unrelated outbreak earlier this month connected to Chipotle Mexican Grill restaurants. Those restaurants have been cleaned, new ingredients ordered, and have been reopened. The Costco E. coli 157 strain, which has caused five people to be hospitalized- two of which developed hemolytic uremic syndrome (HUS; which can readily lead to acute renal failure and sepsis), is more dangerous than the Chipotle E. coli 026 strain, though there have been no deaths yet.
In the United States, the National Weather Service issues a blizzard warning for northeastern Colorado and western Kansas with an expected snowfall by midday of 12 inches in Denver, Colorado. Denver International Airport cancels 143 arriving and departing flighits. Several tornadoes occur overnight in northern Texas, western Kansas, and southern Nebraska.
Effective midnight, Washington, D.C. joins Alaska, Colorado, and Washington state as the only places in the United States that locally purport to override federal law and allow the use of marijuana for recreational purposes.