Houston Weather Alert: Live Updates on Tornado Risk, Flash Flood Warnings & Temperature Swings

Houston residents woke up to steamy Memorial Day air, with temperatures hovering near 84 °F and humidity above 70 percent by late morning. Southerly winds around 10 mph are pushing warm Gulf moisture inland, setting the stage for an active weather afternoon. Meteorologists at the National Weather Service and several local TV stations warn that scattered thunderstorms will erupt after 1 p.m., intensifying through the commute hours. Some cells could turn severe, producing quarter-size hail, wind gusts over 50 mph and torrential downpours that trigger street flooding on the usual low-lying bayous. If you plan outdoor Memorial Day grilling, keep an eye on real-time radar and be ready to move the party indoors. The stormy pattern continues Tuesday and Wednesday as a slow-moving upper disturbance taps deep tropical moisture. AccuWeather projects daytime highs near 87 °F Tuesday, slipping to the low 80s Wednesday when widespread heavy thunderstorms may drop 1–3 inches of rain in pockets across Harris, Fort Bend and Montgomery counties. Localized flash flooding is possible where storms “train” over the same neighborhoods. By Thursday and Friday, the atmosphere gradually stabilizes. Highs remain in the mid-80s with lingering hit-or-miss showers, but sunshine should return for the weekend. Dew points stay in the mid-70s, so expect that classic Houston humidity even during drier breaks. Safety tips: never drive through water of unknown depth, secure loose patio items before storms roll in, and download a reliable weather app for push alerts. For outdoor workers, follow the OSHA heat index guidelines—frequent breaks and hydration are critical as the heat index surges past 95 °F between storms. May is historically Houston’s second-wettest month, and this week’s rounds of rain could ease emerging drought pockets while reminding the region why flood preparedness matters. Stay weather-aware, Houston, and you’ll navigate this stormy stretch safely—and maybe even enjoy some cooler temps once the rain passes.