The National Weather Service has declared a flash flood watch for portions of southeast Texas through this afternoon, including in the city of Houston as well as in the following counties: Harris, Fort Bend, Jackson, Austin, Chambers, Brazoria, Galveston, Liberty, Waller, Matagorda, Colorado and Wharton. Overnight showers and thunderstorms have produced heavy rainfall and are expected to carry on throughout the day. Rainfall amounts of two to three inches are likely in the watch area with potential amounts of four to six inches in concentrated areas, which could lead to flash flooding. The flood watch has been issued until 4 p.m. Heavy rainfall has already led to high water on streets in Galveston and Brazoria counties where a flood warning is in effect until 11 a.m. Residents are encouraged to avoid going outside when flood warnings are in effect. Radar estimates show as much as 11 inches have already fallen on the Danbury area in Brazoria County. Danbury ISD has cancelled classes today. County offices of emergency management are monitoring street flooding in Harris and Fort Bend counties as well. Stay tuned to www.communityimpact.com for updates.