MEXICO CITY—Tropical Storm Nora is dropping heavy rains along the Gulf of California after weakening from a hurricane that set off floods and landslides on Mexico’s Pacific coast, caused havoc in Puerta Vallarta, and left at least one dead and seven missing. Nora weakened from a Category 1 hurricane at midday Sunday after making a brief land passage just inland from the Mazatlan resort area and then moving back over water and entering the narrow gulf. Though it was barely a tropical storm by late Sunday, forecasters warned that its heavy rains still posed a danger for areas along the gulf. Nora had maximum sustained winds of 40 mph (65 kph) late Sunday and was moving to the north-northwest at 12 mph (19 kph). Its center was about 95 miles (155 kilometers) southeast of Los Mochis. Communities in the coastal states of Michoacan, Colima and Jalisco experienced heavy rain and …