A powerful atmospheric river-linked storm that began slamming Southern California on Wednesday prompted evacuation orders in Los Angeles County amid flood threats to burn scars from wildfires that erupted in January.
Threat level: Flood and flash flood watches and high-wind advisories have been issued across Southern California.
The chances of a 130- to 300-foot-wide asteroid hitting Earth just a few days before Christmas 2032 are increasing — but don't panic (or celebrate) just yet.
Why it matters: The near-Earth asteroid, officially named "2024 YR4," could be a regional hazard if it actually hits the planet, NASA says.
