Things may have cooled off somewhat in most of the country, but now the Southwest gets to join in the scorching fun, according to a heat warning issued by the National Weather Service for areas of Arizona, California, and Nevada. Parts of all three states are expected to see temperatures exceeding 110 degrees between now and Wednesday, when the heat warning is scheduled to end. Meanwhile, the cold front pushing through the Midwest and parts of the South and Mid-Atlantic brought significant relief—but also severe storms and flash floods in certain areas. Las Vegas is expected to tie—or even break—its record-high temperature for July 10 of 114 degrees. Monday's temperature of 113 tied the record-high for the day, set in 1943.