The Enhanced Fujita Scale provides an estimated range of a tornado's wind speeds, based on the tornado's damage.

One question you may ask yourself is how tornadoes are measured? It's with the Enhanced Fujita (EF) scale which is gives a ...

Residents were stunned after a tornado touched down in Pico Rivera early Thursday morning, leaving behind a trail of ...

An EF0 tornado touched down in Los Angeles County early Thursday morning, causing damage to a Pico Rivera neighborhood, the ...

Windspeeds reached 85 mph for about two minutes as the tornado traversed about a mile just west of the 605 Freeway.

Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.

Parts of the city had been urged to evacuate as a powerful system brought rain and snow up and down the state.

A small tornado also touched down for two minutes in the Pico Rivera area between 3 a.m. and 4 a.m., according to the ...

A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.

Wind gusts were forecast to top 50 mph in some areas. In Pico Rivera, a tornado with wind speeds reaching 85 mph traveled ...