Central Texas could see torrential rain and strong storms late Wednesday night, followed by repeated downpours Thursday that forecasters say may trigger flash flooding across much of the region. Light, scattered rain or drizzle is possible during Wednesday’s morning commute, but the greatest risk is expected later. Storms could build in the Hill Country around midnight, with the threat extending overnight. Areas mainly west of Interstate 35 are under a moderate flash-flood risk, rated 3 on a 4-point scale, and a marginal severe-storm risk, rated 1 on a 5-point scale. The heat will persist before the storms arrive. Afternoon highs are forecast in the mid- to upper 90s, with high humidity making conditions feel hotter. Thursday is expected to bring the most significant round of weather, with intermittent strong thunderstorms and heavy showers. Forecasters warn that slow-moving storms passing over the same locations could leave water pooled on streets and other low-lying areas. A moderate flash-flood risk and marginal severe-weather risk are forecast for most of the area. The rain threat is part of a multi-day weather system. Austin’s forecast calls for a 90% chance of thunderstorms Thursday and an 80% chance Friday, though the timing and location of the heaviest rain can vary. Residents should monitor updated forecasts and avoid driving through water covering roads; even shallow, moving floodwater can make a route dangerous.