* WHAT. Flooding caused by excessive rainfall is expected. * WHERE. A portion of south central Arizona, including the following county, Maricopa. * WHEN. Until 1245 AM MST. * IMPACTS. Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS. - At 939 PM MST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.25 and 0.75 inches of rain have fallen. - This includes the following streams and drainages. Gila River, Cave Creek and Salt River. Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include. Phoenix, Avondale, Tolleson, Laveen and Phoenix International Raceway. - http://www.weather.gov/safety/flood
