A severe weather system is causing widespread flooding and power outages across the southern and central United States, with millions at risk of dangerous conditions. Flash floods have stranded drivers in Texas, while future storms threaten the Midwest and mid-Atlantic regions with tornadoes, hail, and damaging winds.
Part 1: Immediate Action & Core Facts
Flash flooding in Texas has led to water rescues and stranded vehicles, particularly on I-35 in Waco and Austin. The National Weather Service (NWS) has issued flood watches for central and southern Texas, Louisiana, and Mississippi, with rainfall rates of 2 to 5 inches per hour. Severe storms are expected to return Wednesday in the Midwest and Thursday in the mid-Atlantic, affecting up to 48 million people.
Part 2: Deeper Dive & Context
Current Flooding Risks
A stationary frontal boundary is causing daily flash flood risks across Texas, Louisiana, and Mississippi through the week. Houston is under a level 3/4 moderate risk for excessive rainfall and flash flooding from Monday to Thursday, with potential totals exceeding 10 inches in some areas. The Texas Game Wardens reported responding to numerous calls involving people trapped by floodwater, with videos showing stranded vehicles and waist-high water.
Upcoming Storm Threats
The NWS warns of another severe weather outbreak Wednesday, affecting roughly 39 million people from eastern Kansas to central Ohio. Hazards include damaging straight-line winds, large hail, and tornadoes, with major cities like Kansas City, St. Louis, Chicago, Indianapolis, and Columbus at risk. On Thursday, about 48 million people from eastern Kentucky to Long Island could face severe storms.
Power Outages and Heat Risks
By Monday morning, roughly 50,000 power outages had been reported due to high winds, including about 26,000 in Ohio and 24,000 in Pennsylvania. Meanwhile, record high temperatures started in western Washington and Oregon on Sunday, adding to the extreme weather conditions.
Tropical Disturbance Fueling Rainfall
The heavy rainfall is being fueled by a tropical disturbance, an early-stage system of thunderstorms and clouds forming in tropical or subtropical waters. This system is contributing to the prolonged and intense rainfall across the affected regions.