Severe Storms and Heatwave Disrupt U.S.

Overnight, more than 250 storms unleashed heavy rain, dangerous flooding, and high winds across the United States. This threat is expected to persist into Tuesday. In Kentucky, video footage showed emergency crews navigating knee-deep floodwaters to rescue residents stranded in their vehicles during Monday’s floods. Similarly, in New Jersey, rising waters trapped cars and trucks.

Virginia experienced a suspected tornado, which left numerous fallen trees blocking roads and power outages affecting tens of thousands. In the West, Colorado faced severe dust storms with winds reaching 100 mph. Overall, the storms impacted almost half of the country and even interrupted a World Cup game in Philadelphia due to lightning.

Airports along the East Coast, from Boston to Washington, were forced to impose ground stops due to severe weather, leading to 10,000 flight disruptions at the start of the week. By early Tuesday, 851 flight delays and 175 cancellations were reported across the U.S. Northeast hubs, such as John F. Kennedy International Airport, LaGuardia Airport, Philadelphia International Airport, and Ronald Reagan Washington National Airport, were among the most affected as stormy weather and low visibility continued.

An additional 12 million people face storm risks on Tuesday across two key regions. In the mid-Atlantic, areas from eastern North Carolina through southeastern Virginia and southern Maryland may experience damaging winds, with a slight chance of tornadoes. Flash flood warnings and watches are in place from Norfolk, Virginia, to West Virginia, with isolated rainfall totals potentially reaching 2-4 inches.

The second region extends across the western High Plains to the central Plains, covering eastern Wyoming, Colorado, and the Oklahoma-Texas border. Here, very large hail, greater than 2 inches in diameter, and damaging winds are likely. There is also a possibility of a few tornadoes.

As the storm threat continues into Wednesday, attention remains on the western High Plains, particularly from eastern Wyoming to eastern New Mexico and the Texas Panhandle.

Meanwhile, intense heat is affecting the South and West. Heat alerts cover regions from Louisiana to the Pacific Northwest, impacting 30 million people with heat watches, warnings, and advisories. Forecasts suggest possible record highs, with temperatures reaching 110 degrees Fahrenheit in Las Vegas, 111 in Phoenix, 100 in Albuquerque, and 101 in Lubbock. Along the Gulf Coast, humidity will further elevate heat index values.

This intense heat will continue through the week, posing health risks in affected areas. As the West Coast begins to cool down, the East is expected to experience rising temperatures. Later this week and into the weekend, triple-digit temperatures are anticipated in parts of the Southern Plains, the Southeast, and Northern Florida.