WATCH: Sam Champion's 'Extreme Makeover: Home Edition'
The "GMA" weather anchor joined the Muppets to help rebuild a family's home.
WATCH: First Winter Storm Packs a Wallop
A record-setting blizzard affected millions of people across 12 states.
WATCH: Sam Champion's Favorite Diane Moments
The weather anchor reminisces about Diane Sawyer's first day on "GMA."
WATCH: Record Rains Drown the South
Massive flooding washes out roads and forces schools to close.
WATCH: Dickens Classic Goes Digital
Sam Champion tours Disney's "Christmas Carol" train promoting the 3-D remake.
Storm Spotters Track Monster Tornado
Eyewitnesses recall massive storm that left Iowa town in ruins.
Tornadoes Tear Through Midwest
Buildings destroyed and cars flipped throughout Midwest, but no fatalities.Deadly Storm Safety Myths Debunked
Learn how to stay safe in the eye of a killer tornado — wherever you are.
Myths About Driving in Severe Weather
Do you know the right thing to do during lightning, a snow storm or flooding?
When Lightning Strikes, What Do You Do?
Tips and tricks to protect yourself when a storm thunders your way.
How to Survive in a Tornado
Tornadoes can hit anywhere. Where should you take cover in a twister?
Weather Forecasting: Myth or Reality
Weather predictions translate to big business, but how accurate are they?
Spring Forward, Fall Back, but Why?
Justification for daylight-saving time ranges from energy efficiency to safety.
Avalanche: Averting Danger, Tips for Survival
Dynamite used in the West to combat record snowfall and near-record avalanches.
Make Your Home Hurricane Proof
Hurricane season starts tomorrow -- don't get caught unprepared.
