Devastating, life-threatening floods have already started in some states as an atmospheric river causes heavy rainfall.

Severe thunderstorms are expected to smack 12 states in the Midwest and South over the weekend, with some tornadoes possible.

The Current Radar map shows areas of current precipitation (rain, mixed, or snow). The map can be animated to show the previous one hour of radar.

The 12 hour Surface Analysis map shows current weather conditions ... with its use finally spreading to the United States during World War II. Surface weather analyses have special symbols ...

Joe Edwards is a Live News Reporter based in Newsweek's London Bureau. He covers topics related to weather, climate, and ...

A life-threatening outbreak of long-lived and strong tornadoes is expected today in parts of the central and eastern US from ...

South-central parts of the United States are ... to the likelihood of severe weather conditions, according to AccuWeather. A ...

Nearly 30 tornadoes were confirmed after the first wave of the storm, which will extend into the weekend. Mud smeared streets ...