Heat Wave, Flooding, and Earthquake Strike US Simultaneously
A dangerous heat dome is bringing oppressive triple-digit temperatures to as much as two-thirds of the continental United States, while severe flooding in Missouri has claimed one life and prompted helicopter rescues of more than 200 people from a summer camp. Adding to a day of extreme weather, a magnitude 4.2 earthquake jolted Southern California early Sunday morning, according to AP News.
Heat Dome Intensifies Across the West
The heat dome — formed when high pressure traps hot air while blocking cooling winds and rain — is one of the strongest to affect the Dakotas in 25 years, according to AccuWeather senior meteorologist Chad Merrill. Temperatures are forecast to be 15 to 25 degrees Fahrenheit (8 to 14 degrees Celsius) warmer than normal in many areas, including at night, when the body typically recovers from daytime heat.
The National Weather Service predicts that more than 90 US local temperature records will be tied or broken through Wednesday, with two-thirds of those being overnight heat records. Record triple-digit highs were forecast for Nevada, Utah, Colorado, Wyoming, Idaho, Montana, and the Dakotas. Las Vegas was expected to hit 111°F (48°C) on Saturday.
“The heat doesn’t necessarily stop when it’s dark out,” said Josh Adam, a meteorologist with the National Weather Service in Bismarck, North Dakota, where temperatures will surpass 100°F (37°C) until Tuesday — a dramatic spike for a state where summer temperatures are typically in the 80s.
Overnight temperatures were not forecast to drop below 80°F (27°C) in Fort Lauderdale, Miami, Tampa, Galveston, and Charleston, raising serious health concerns for vulnerable populations. Tynika Smith of Bloomington, Minnesota, who distributed cooling supplies to homeless encampments, said, “They can’t get into a car with air conditioning or go into a house.”
Missouri Flooding Claims One Life, Triggers Mass Rescue
A woman, Faith Gregory, was found dead in Crawford County after her home was swept away from its foundation. Her body was discovered about 1.8 miles (3 kilometers) downstream in Huzzah Creek, according to the AP News report.
More than 200 children and staff were rescued by Army National Guard Black Hawk helicopters from Camp Taum Sauk in Lesterville, Missouri, after floodwaters washed away roads leading to the camp. The camp thanked emergency crews in an Instagram post, saying, “We are beyond thankful for your help keeping our camp community safe.”
About 20 people at the Bearcat Getaway campground near the Black River climbed onto a building to escape floodwaters, but the building collapsed. “Between the weight and the constant waters underneath it, it just gave away on them,” said Sgt. Eddie Young of the Missouri Highway Patrol. Three other people trapped on trees in Reynolds County were also rescued.
Missouri Governor Mike Kehoe declared a state of emergency on Friday, warning that the Black River was expected to crest at more than 28 feet (8.5 meters) near Annapolis — which would be a record. “As recovery efforts continue and additional rain is expected, I urge everyone in flood-prone and low-lying areas to stay weather-aware,” Kehoe said.
The Missouri Emergency Management Agency warned that areas have already received 6 to 12 inches (15 to 30 centimeters) of rain, with further thunderstorms possible.
Earthquake Rattles Southern California
A magnitude 4.2 earthquake struck at 3:38 a.m. PDT on Sunday, about 1.2 miles east-southeast of Frazier Park, California, at a depth of approximately 8 miles (13 kilometers), according to FOX Weather. Light to weak shaking was felt from Kern County southward through Ventura and Los Angeles counties, with the USGS reporting more than 285 people felt the quake. No damage, injuries, or deaths had been reported.
Climate Context and Broader Implications
Climate change from the burning of coal, oil, and natural gas is causing more intense and longer-lasting heat waves that cover larger areas, scientists say. The current extreme weather is unfolding against the backdrop of a developing El Niño — a natural warming of the equatorial Pacific that alters weather patterns and spikes temperatures across the globe. The current El Niño, which formed last month, is expected to rank among the most intense since tracking began in 1950, with an 81% chance of becoming “very strong” by fall.
Meteorologists also warned that the heat could spike fire risk in parts of the country already dry, including the Rockies, where dry thunderstorms could develop.
What to Watch For
The heat dome is expected to continue expanding eastward through mid-week, with more than 90 temperature records potentially falling. Meanwhile, the flood threat may shift southward into the Ohio and Tennessee river valleys as storms move through the region. Authorities urge residents in affected areas to stay informed, have multiple ways of receiving alerts, and take protective action as needed.