Thunderstorms are capable of growing higher than the cruising altitude of airplanes, and twice the height of Mt. Everest.

Tornadoes form by an extreme spinning of air caused by a mixture of heat, humidity and changes in air. Here's how they all ...

Unseasonable warmth is setting the stage for damaging thunderstorms capable of bringing powerful wind, large hail and tornadoes to nearly 175 million people in the central and eastern United ...

SEATTLE — Widespread thunderstorms hit western Washington Wednesday evening. A Severe Thunderstorm Watch for King County and southward counties into Oregon expired at 9 p.m. night. Seattle ...

SEATTLE — Widespread thunderstorms moved through western Washington Wednesday night, with lightning illuminating skies across the region. The National Weather Service said about 900 lightning ...

NOW WITH WHAT TO DO WHEN THUNDER ROARS. YOU MAY HAVE HEARD THE PHRASE WHEN THUNDER ROARS, GO INDOORS. THIS IS BECAUSE THUNDERSTORMS CAN PRODUCE FREQUENT LIGHTNING, WHICH CAN BE VERY DANGEROUS.

UPDATE: A severe thunderstorm watch has been issued for parts of western Washington. Click here for the latest forecast information. SEATTLE - March is flipping the script on the old "in like a ...

Once wind shear, lift, moisture and instability are in place, we can start whipping up thunderstorms. All tornadoes start with a thunderstorm: When plentiful heat and humidity are in force ...