Mammatus clouds loom overhead

Mammatus clouds cover western Maryland

Stunning mammatus clouds hover over Nebraska

Gorgeous sunset radiates with lenticular clouds

Beautiful billowing clouds turn bright orange at sunset

Beautiful timelapse of lenticular clouds at sunset

Sunset shines through the clouds

Beautiful sunset accompanied by supercell storm clouds

Gloomy wall clouds fill sky in New Mexico

Reed Timmer prepares for the solar eclipse

Reed Timmer strikes gold in Colorado

Reed Timmer battles blinding whiteout conditions

Reed Timmer warns of tornado-favorable storms

Reed Timmer reaches the summit of Mount Washington

AccuWeather Storm Chaser Reed Timmer captures tornado swirling through Wyoming

Reed Timmer reports live from the path of a rain-wrapped tornado hitting Alabama

Reed Timmer in Puerto Rico to deliver supplies collected by AccuWeather

Must see: Tornado literally lands on Reed Timmer while storm chasing

Reed Timmer headed to the plains as severe weather fires up

AccuWeather's Reed Timmer assists Cajun Navy with water rescues in North Carolina

Rounds of chilly air blast the Northeast

Threat for severe storms returning from Thursday night into the weekend

A few slowdowns in store, but mostly clear conditions for travel this Tuesday

Pollen levels on the rise across much of the US

Severe storms expected to ramp up as April comes to an end

Hail rips apart South Carolina yards, cars