Hurricane Nora was the fourteenth named tropical cyclone and seventh hurricane of the 1997 Pacific hurricane season. The September storm formed off the Pacific coast of Mexico, and aided by waters warmed by El Niño, eventually peaked at Category 4 intensity on the Saffir-Simpson Hurricane Scale.
Nora intensified and weakened quickly before taking an unusual path, which lead it to make landfall twice as a hurricane in Baja California. After landfall, its remnants affected the Southwestern United States with tropical storm-force winds, torrential rain and flooding. Nora is blamed for two direct casualties in Mexico, as well as substantial beach erosion on the Mexican coast, flash flooding in Baja California, and record precipitation in Arizona. Nora persisted far inland, it was only the third known tropical cyclone to reach Arizona while tropical.