To save lives, supercomputers dive into the hearts of nature’s worst tornadoes
Leigh Orf chases tornadoes across America’s central plains, but not from inside a pickup truck. He creates computer simulations of supercell thunderstorms -- and the twisters they spawn -- from the safety of his lab.
Watch 3:59
News Wrap: Deadly tornadoes rip across the Midwest
In our news wrap Wednesday, three people died due to damaging tornadoes overnight, with some of the worst damage striking Illinois and Missouri. Also, there's word that President Trump's travel ban will no longer include citizens from Iraq, no bar…
Watch 2:57
News Wrap: Sandoval withdraws from SCOTUS consideration
In our news wrap Thursday, Gov. Brian Sandoval (R-Nev.) officially withdrew his name from consideration for the late Antonin Scalia’s seat on the Supreme Court. Also, battered communities across southeastern Virginia began cleanup in the aftermath of Wednesday evening’s tornadoes,…
Watch 3:41
In Tornado Alley, using drones to pinpoint severe weather
More than 100 tornadoes touched down in Oklahoma last year, and a new multi-million-dollar grant to four universities in the heart of Tornado Alley may lead to better information about where and when severe weather may strike. NewsHour's Stephen Fee…
Violent weather has battered the South and Midwest in recent days, bringing the death toll from up to 45. On Saturday, at least nine tornadoes swept through the Dallas area, blasting neighborhoods with winds of about 200 miles an hour.
Residents of several southern states on Saturday began surveying the ruins left by tornadoes and heavy rains that barreled through the region this week, killing at least 18 people.
In our news wrap Thursday, tornadoes touched down across five states on Wednesday evening. In Mississippi, which saw the worst of the extreme weather, a state of emergency was declared across seven counties. Also, a record number of people are…
In our news wrap Tuesday, Kenyan President Uhuru Kenyatta blamed local political leaders for two nights of rampages that killed at least 60 near the tourist resort island of Lamu. The Somali militant group al-Shabab had already claimed responsibility for…
