Understand the difference between a squall line and a thunderstorm as a severe weather system sweeps the U.S. this March.

Squall lines rank among the most common and destructive forms of organized severe weather in the United States, yet they ...

Some squall lines can produce tornadoes, too. They’re often wrapped in rain and move erratically.

More inclement--and potentially dangerous--weather is on the way for a significant section of the country Sunday, according ...

A dangerous line of severe thunderstorms is pushing east across the Mid-South today, and the National Weather Service in ...

A squall line stretching roughly 400 miles triggered numerous tornado and severe thunderstorm warnings across Virginia on ...

The period between midafternoon and early evening is of greatest concern, but some storms are possible earlier.

An enhanced risk has been issued for severe storms through overnight Monday, primarily based on the potential for widespread ...

Severe weather is expected to impact Robeson County and the surrounding region on Monday, with thunderstorms and gusty winds in the forecast. An update issued by the National Weather Service on Monday ...

Severe weather Monday is likely, with threats of damaging winds, tornadoes and hail possible in central North Carolina.

The National Weather Service released an updated snow squall warning at 7:23 p.m. on Tuesday in effect until 7:45 p.m. for ...