* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Southern New Mexico and Far West Texas. * WHEN...From Monday afternoon through Tuesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Tropical moisture will be transported northward ahead of Hurricane Polo Monday and Tuesday, bringing widespread showers and isolated thunderstorms to the region. High rainfall rates and repeated rounds of rain may result in scattered instances of flash flooding. Heavy rainfall from last week has saturated soils and will elevate the flood threat further through Tuesday night. - http://www.weather.gov/safety/flood