* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Santa Cruz River Valley/Altar Valley and Western Pima County.
* WHEN...From Monday afternoon through Monday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded.
* ADDITIONAL DETAILS... - Scattered to numerous thunderstorms are expected Monday afternoon into Monday evening. Rainfall rates in excess of 1 inch per hour are expected with the stronger storms with isolated areas having the potential of 2 inches or more in an hour. - http://www.weather.gov/safety/flood