Sep 21, 2015
An upper level low pressure system spinning off of the coast of central Baja California drew significant amounts of tropical moisture into central Arizona on September 21st. The moisture was being shed off of a tropical depression named 16-E. The favorable combination of plentiful tropical moisture, elevated instability and upper level wind fields allowed scattered thunderstorms to develop over the western Arizona deserts during the afternoon hours. Locally heavy rainfall developed over western
Source: NOAA National Weather Service Storm Events Database (event 597613). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in La Paz County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.