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    Al Gore on new climate mission, the impact of election outcomes

    06:27
  • Record-breaking rain causes flash flooding in Pittsburgh

    01:08
  • Strong storms move to Northeast, bringing heavy rain

    01:12
  • Violent and destructive storms race across the South

    03:17
  • Severe storms and tornadoes sweep through Gulf Coast as millions face flooding risk

    02:02
  • Strong storms batter the South, leaving 100k without power

    01:52
  • Where will it be cloudy in US during the total solar eclipse?

    02:04
  • Cloudy skies forecast for some - but not all - of Monday's total eclipse path

    01:07
  • Towns along solar eclipse path brace for millions of tourists

    02:48
  • Aftershocks felt on East Coast as concerns mount over NYC’s structural readiness for earthquakes

    02:08
  • New York governor addresses earthquake, says no damaged buildings reported

    09:50
  • California faces evacuation warnings in Big Sur ahead of storm

    03:53
  • East Coast slammed with flooding rain, tropical storm-force winds

    03:57
  • Major storm pounds East Coast after bringing severe weather to the Midwest and South

    02:12
  • Tens of millions under severe weather threat

    02:10
  • Storm heads for East Coast after tornadoes, hail sweep Midwest

    03:27
  • Major storms expected in much of US threatening snow, floods

    03:20
  • Rain and snow pound the West Coast ahead of Easter holiday

    01:38
  • Powerful storm slams Midwest with heavy rain and snow

    01:23
  • Midwest pummeled with snow as blizzard warnings issued

    03:12

How an atmospheric river will affect California's Central valley

01:47

An atmospheric river is set to bring a great deal of rain and snow to California leaving 17 million people under winter weather alerts. NBC News’ Savannah Sellers breaks down what atmospheric rivers are as it is not the first one to hit the Western U.S. this week.