Warnings for catastrophic, life-threatening and unprecedented flooding, and flash flood emergencies, are in effect for portions of southeastern Texas. DO NOT ATTEMPT TO TRAVEL IN THE AFFECTED AREA IF YOU ARE IN A SAFE PLACE. DO NOT DRIVE INTO FLOODED ROADWAYS. Harvey is expected to produce additional rainfall accumulations of 15 to 25 inches through Friday over the upper Texas coast and into southwestern Louisiana. Isolated storm totals may reach 50 inches over the upper Texas coast, including the Houston / Galveston metropolitan area. Please see warnings and products issued by your local National Weather Service office for additional information on this life-threatening situation - www.weather.gov

Tropical Storm Harvey is centered as of 4 p.m. CDT inland about 25 miles (35 km) northwest of Victoria. Harvey is drifting toward the southeast near 2 mph (4 km/h), and a slow southeastward motion is expected over the next couple of days. On the forecast track, the center of Harvey is forecast to move off the middle Texas coast on Monday and meander just offshore through Monday night.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast during the next 24 hours. Some slight restrengthening is possible after the center moves off the coast on Monday night and Tuesday.

A Tropical Storm Warning is in effect from Port O'Connor to Sargent, and a A Tropical Storm Watch has been issued from north of Sargent to San Luis Pass. Tropical storm conditions are occurring in an area near the center of Harvey and over portions of the tropical storm warning area along the coast, and these conditions are likely to persist in areas of onshore flow within the warning area during the next day or so. Tropical storm conditions are possible within the watch area by Monday night. A few tornadoes are possible through Monday near the upper Texas coast and into far southwest Louisiana.

Get the latest on Harvey at www.nhc.noaa.gov/#Harvey