severe weather

At the Salk Institute in San Diego, scientists are using AI to identify roots which will make crops more resilient to drought, floods, and extreme heat. If successful, it could also mean extra revenue for farmers. National climate reporter Chase Cain got an exclusive look inside the high-tech lab.

Rivers rose and flooding worsened Sunday across the South and Midwest, threatening communities already badly damaged by days of heavy rain and wind.

Another round of torrential rain and flash flooding has come for parts of the South and Midwest already heavily waterlogged by days of severe storms that also spawned some deadly tornadoes.

At least 42 people are dead after powerful storms swept across the country over the weekend, uprooting trees and destroying homes and businesses.

Residents are surveying damage from unusually vicious weather in multiple states where violent twisters, blinding dust storms and fast-moving wildfires decimated neighborhoods.

A massive storm has decimated homes and other structures and left at least 35 people dead since Friday.

A powerful system of storms is sweeping across the Midwest and South, raising tornado warnings.

With heavy rainfall expected, officials are advising Los Angeles County beachgoers to stay out of the water on Thursday due to the increased possibility of runoff containing dangerous wildfire debris.    

The public is being advised to avoid the ocean over concern of higher bacteria level as the storm hits. This video was broadcast on the NBC4 News at 4 a.m. on March 13, 2025. 

Heavy rain has fallen in the overnight hours across Southern California, prompting evacuation and flood warnings for wildfire burn zones. 

Steady rain continues to fall in the Palisafes burn scar area. Brittany Hope reports for the NBC4 News at 4 a.m. on March 13, 2025. 

Parts of Sierra Madre are under evacuation order as city officials worry over potential mud flows. Lauren Coronado reports for the NBC4 News at 4 a.m. on March 13, 2025. 

The Inland Empire is under an evacuation warning due to potential flooding and mud flow. Annette Arreola reports for the NBC4 News at 4 a.m. on March 13, 2025. 

The heavy rain and wind events most known for dousing California and other parts of the West have been getting bigger, wetter and more frequent in the past 45 years as the world warms, according to a comprehensive study of atmospheric rivers in the current issue of the Journal of Climate.

The California Highway Patrol said they received several cars from drivers who got stuck in the snow on Highway 18 Thursday night. 

The California Highway Patrol says they received several calls for help after drivers got stuck in the snow on Highway 18. Karma Dickerson reports for the NBC4 News at 5 a.m. on March 7, 2025. 

Tornadoes can form in minutes, leaving little time to prepare. Knowing the difference between alerts and having a safety plan in place is critical.

Preparations are underway in areas near the Eaton Fire burn zone ahead of the storm as residents in Sierra Madre are under an evacuation warning. Brittany Hope reports for the NBC4 News at 6 a.m. on March 5, 2025. 

Mudslides are dangerous torrents that are usually referred to by geologists and first responders as debris flows.

After the storm that hit Southern California on Thursday, crews in Altadena now begin to clean the massive mudflow left behind. Lolita Lopez reports for the NBC4 News at 4 p.m. on Friday, Feb. 14, 2025.