What is an omega block? According to Weather.com meteorologist Jonathan Erdman, "if you trace the path of the jet stream across the U.S. from the West to the East, you will trace out the Greek ...

You're about to walk your dog, but the sky looks ominous. You pull out your phone, open your favorite weather app, and see that it's about to pour. You wait for the rain to pass. Or maybe you ...

An “Omega block” is setting up across the US, and forecasters warn that it will lead to a stagnant pattern with prolonged periods of warmth in some areas and steady rain in others.

Definition of severe weather. Severe weather is officially defined as a storm that produces one of the following: wind gusts 58+ mph, tornadoes or hail over 1 inch in diameter.

The weather service said the tornado warnings were activated by meteorologists who detected cloud rotation — a key indication of a potential tornado spinning — on radar.

Your Weather Forecasts Are About to Get a Lot Less Accurate “We’re becoming more blind” amid Donald Trump’s gutting of federal agencies.