A tropical cyclone is a deep low-pressure system that develops over very warm tropical waters. Depending on the ocean basin and its intensity, the same type of storm may be called a hurricane, typhoon ...

Here's what you will find when you watch KTVU's live news stream on KTVU.com, our mobile news app and FOX Local. KTVU's online news stream is available on KTVU.com, our FOX Local mobile app and the ...

The battle for control of Congress is on. Republicans hope to maintain and expand their narrow majorities in the fall for the second half of President Donald Trump’s term, while Democrats will aim to ...

A much-anticipated El Niño that developed this summer became in September the strongest ever recorded, with cascading effects on global climate expected to peak late this year and into next. Water ...