Tune into any TV weather report and you’ll hear the words “Doppler radar” as meteorologists track storms across California. But how does Doppler radar work? And how accurate is it? The concept of ...

Outside every National Weather Service (NWS) office around the U.S. stands what looks like an enormous white soccer ball, perched atop metal scaffolding several stories high. These somewhat plain ...

Saturday is expected to bring the potential of severe weather in Northern California, along with heavy rain and wind. Snow is also expected to impact travel in the Sierra on Sunday. Here is where to ...

Follow atmospheric river storm impacts with interactive radar and see the latest traffic conditions and rain totals.

WE’RE SEEING HERE IN THE VALLEY FLOOR. THE COLD FRONT COMING THROUGH. THERE’S SOME INSTABILITY BEHIND US. I WANT TO SHOW YOU GOT SOME LIGHTNING STRIKES POPPING UP. NOW, MORE THAN LIKELY WE’RE NOT ...