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Photo gallery: The week in weather
July 2011 highs and lows
Your best reader-submitted weather photos
The facts behind lightning's flash
Explore hurricane intensity, science, history and damage
Heat seared much of the southern, central and eastern USA on Tuesday.
Volcanoes may release particles that can cause changes in local and regional weather at rates up to 100 million times higher than previously realized.
Storm surge is the most dangerous aspect of hurricanes, but many public misconceptions persist about it.
The trees on the Merritt Parkway between New York City and New England are not just pretty they're also perilous.
The National Weather Service issued heat advisories on Tuesday for much of the East Coast, from Georgia to Connecticut.
The sky was filled with a hazy shade of brown as residents washed their cars and swept sidewalks.
Employees returned to work Wednesday at the once fire-threatened Los Alamos nuclear lab.
Scientists are monitoring unusual underground activity that could signal an eruption at the Hekla volcano in southern Iceland.
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Check out the latest watches and warnings for severe storms, tornadoes, floods, and extreme heat.
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