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

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

Earlier in the day, Environment Canada issued a snow squall warning, cautioning that a “brief, intense snowfall is expected to develop. Under the snow squall, visibility will be significantly reduced ...

Dozens of centimetres of snow has fallen in northern Ontario, creating difficulties accessing vehicles and leaving homes.

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

On Saturday at 1:33 a.m. the National Weather Service released an updated snow squall warning in effect until 1:45 a.m. for Lycoming County.

It's going to be a dark and somewhat stormy night in North Jersey on March 16 as the system that's pummeling the Midwest with ...

The Storm Prediction Center has placed the D.C. region under a Moderate Risk (level 4 out of 5) for severe thunderstorms.

Squall lines rank among the most common and destructive forms of organized severe weather in the United States, yet they remain poorly understood by the general public compared to tornadoes or ...

A tornado watch means conditions are favorable for tornadoes, while a warning means a tornado is imminent or occurring. A “tornado watch” has been issued by the National Weather Service and its Storm ...

A report was issued from the NWS Spokane WA on Saturday at 4:42 p.m. for a snow squall until 5:15 p.m. for Spokane area and ...

A strong storm system could bring severe weather to Washington DC on Monday. Forecasters warn of damaging winds, hail, heavy rain and a small tornado risk during the afternoon rush hour.