Hurricane Darby was a tropical cyclone that meandered over the open waters of the eastern Pacific Ocean in late June 2010. The fourth named storm and the second of only two major hurricanes to form during the unusually inactive 2010 Pacific hurricane season, Darby originated from an area of disturbed tropical weather on June 22. It quickly organized, and it peaked as a low-end Category 3 hurricane on the Saffir–Simpson scale on June 25. The remnants of Hurricane Darby brushed Mexico and produced moderate rainfall which worsened flooding caused by Hurricane Alex in the 2010 Atlantic hurricane season.