* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of Colorado, including the following areas, Animas River Basin, Central Gunnison and Uncompahgre River Basin, Four Corners/Upper Dolores River, Grand and Battlement Mesas, Northwest San Juan Mountains, Paradox Valley/Lower Dolores River, San Juan River Basin, Southwest San Juan Mountains, Uncompahgre Plateau and Dallas Divide, Upper Gunnison River Valley and West Elk and Sawatch Mountains and southeast Utah, including the following areas, Canyonlands/Natural Bridges, La Sal and Abajo Mountains and Southeast Utah. * WHEN. From noon MDT today through Monday afternoon. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, including slot canyons and arroyos. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS. - Abundant monsoonal moisture will fuel thunderstorms capable of producing heavy rainfall rates and lead to the possibility of excess runoff. - http://www.weather.gov/safety/flood