The National Weather Service (NWS) has issued a Flash Flood Watch for Harris County tonight (Tuesday, June 4) through Thursday morning. Tropical moisture from the Gulf of Mexico will move into southeast Texas overnight and trigger periods of heavy rainfall along the coast and in Harris County. Some areas may see two to four inches of rain, and isolated higher amounts that could lead to rapid street flooding. HCOHSEM urges residents to closely monitor the weather through Thursday. Sign up to receive emergency alerts at www.readyharris.org. People should bring their pets inside and delay travel or outdoor activities during periods of heavy rainfall. If travel is unavoidable, reduce your speed to avoid hydroplaning. If a Flash Flood Warning is issued for your area, DO NOT TRAVEL. If you must travel, never drive into high water and use extreme caution at underpasses and low-lying areas where water accumulates. Always remember to Turn Around, Don't Drown! DO NOT DRIVE through high water and DO NOT DRIVE AROUND BARRICADES. Just two feet of water can sweep your vehicle away.Monitor weather at www.weather.gov/hgx/