The National Weather Service expanded Flood Watches on June 15 across Texas, keeping alerts in place through 7:00 p.m. on June 16 for parts of central and western Texas and through Thursday morning for Southeast and South Texas. The watches now include counties such as Llano, Burnet, Williamson, Val Verde, and a broad swath of South Texas counties and barrier islands, where deep tropical moisture and a slow-moving boundary continue to support widespread heavy rain.
The expansion matters because excessive rainfall can overwhelm drainage and trigger rapid rises on rivers, creeks, and urban underpasses. Forecast guidance indicated isolated pockets may exceed 8 inches of rain with rates at times surpassing 2 to 3 inches per hour, conditions that can escalate into flash flooding with little warning. Last update: June 15, 2026.
Flood watch timeline and central-west Texas counties
The current watch for central and western Texas has remained in effect from 9:38 a.m. on June 14 through 7:00 p.m. on June 16, covering counties including LlanoBurnetWilliamsonand Val Verde. Forecasters noted saturated ground and slow-moving storms could concentrate high totals in narrow corridors, while any shift in storm tracks could relocate the greatest impacts during the period. Officials reiterated the distinction between a watch—conditions are favorable for flooding—and a warningwhich signals flooding is occurring or imminent, urging residents in flood-prone zones to monitor later forecasts and be ready to act.
Southeast and South Texas outlook through Thursday morning
In Southeast Texas, a separate watch is expected to last until 7:00 a.m. Thursday, with most areas receiving 2 to 3 inches and localized totals potentially reaching 8 inches over the next couple of days. The daily timing favors isolated morning showers, increasing rainfall by late morning on the west and north sides of the region, and heavier bands lifting north by evening, a pattern projected to persist through midweek. A low-pressure system moving through Mexico is funneling tropical moisture into the area—while the chance of tropical cyclone development is near 30%, the moisture plume interacting with a slow-moving cold front is sufficient to produce repeated downpours before a drier trend returns into the weekend.
South Texas counties and barrier islands under watch
A Severe Flood Watch is in effect for portions of South Texas through Thursday at 7:00 a.m. CDT, covering 18 counties and associated islands. The areas include La Salle, McMullen, Live Oak, Bee, Goliad, Victoria, Webb, Duval, Jim Wells, Inland Kleberg, Inland Nueces, Inland San Patricio, Coastal Aransas, Inland Refugio, Inland Calhoun, Coastal Kleberg, Coastal Nueces, Coastal San Patricio, Aransas Islands, Coastal Refugio, Coastal Calhoun, Kleberg Islands, Nueces Islands, and Calhoun Islands. Forecasters warned that excessive runoff may cause flooding of rivers, creeks, and low-lying areas, with creeks and streams potentially rising out of their banks and low-water crossings becoming impassable; residents should be prepared to take action and dial 911 in emergencies.
Safety guidance and recent flash flood alerts
Officials advised avoiding low-lying routes and underpasses, planning alternate travel during periods of intense rainfall, and remembering “Turn around, don’t drown,” as most flood fatalities occur in vehicles. Even where surface flooding is not immediately evident, conditions can worsen quickly as additional rain falls on saturated soils and training thunderstorms overwhelm urban drainage. In Southeast Texas, the College Station area recently saw a flash flood warning that expired, while a flood advisory continued for parts of Grimes County as heavier rain bands shifted north through the evening.
Recent alerts underscored the hazard in far West Texas as well. On June 13, Flash Flood Warnings were updated for east central Jeff Davis County and south central Reeves County until 5:15 p.m., following radar estimates of 1 to 2 inches with an additional 0.5 to 2 inches possible. Those alerts followed a June 12 warning for west central Jeff Davis County, active until 7:30 p.m. CDT, with officials citing flooding on roads and underpasses and rapid rises on streams, and urging people to seek higher ground as the storm footprint evolved across the region.
