The National Weather Service in League City has issued a * Urban and Small Stream Flood Advisory for... Southwestern Montgomery County in southeastern Texas... * Until 1230 PM CDT. * At 1024 AM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding in the advisory area. Up to three inches of rain have already fallen and an additional 1 to 2 inches is possible. * Some locations that will experience flooding include... Southwestern Conroe, The Woodlands, Shenandoah and Lake Conroe Dam. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots.