Some cloud formations can look scary, and they can be a sign of a storm. Here's how they form and what they are.

Checkout these terrifying storm clouds in Straubaug, Germany, as commuters look on in awe. The German Weather Service (DWD) ...

A bystander caught video Tuesday of ominous clouds in the area of 35th Street and Sterling in Independence, Mo.

Lightning and thunderstorms can be scary for some on the ground, so just image seeing them while inside a plane mid-flight.

They look like brush strokes across the blue." In contrast to the Cirrus clouds, there's the Cumulonimbus storm cloud, "which reaches up maybe eight miles into the sky, spreads out at the top in ...

Wind shear prevents tropical cyclones, he says, by essentially knocking over storm clouds to prevent them from rising straight up into the atmosphere. “And so that kind of prevents typically ...

Clouds increase Sunday night ahead of yet another system that brings more showers and thunderstorms. A cold front passes through on Monday with shower and storm chances at their highest during the ...

AUSTIN, Texas — Highs are forecast to hit the mid to upper 90s Sunday area-wide, but despite the sunnier skies forecast for Sunday afternoon, we're tracking an isolated overnight storm chance ...

Highs near 85.Tonight: Mostly clear and mild. Lows near 69. Thursday: Hot and humid. Less haze and clouds. Highs near 89. Lows near 70. Friday: Sun, clouds, very warm and noticeably humid.

MEMPHIS, Tenn. - One more mostly dry and warm day before rain and storm chances pick up. A couple of isolated showers are possible overnight, but the bigger concern comes Friday and Saturday ...

Warm and humid Friday afternoon Another round of storms Friday night into Saturday morning Hot and humid Sunday with highs near the 90s Limited rain chances continue next week with highs in the ...

MOBILE, Ala. (WALA) - You will feel the stickiness as soon as you step outside. With that increasing humidity will come higher heat index values into the triple digits. Highs will be in the low ...