Five states are under a “red flag warning” due to hot, dry and unstable conditions. Wildfires in Canada are also affecting the air quality in U.S.

A red flag warning in effect for California's Central Valley extends into the Bay Area, indicating heightened risk of wildfire through Friday evening, the National Weather Service says.

Four wildfires ignited Tuesday in the north end of California’s Central Valley, part of a swath of the state that is under a red-flag warning for heightened fire risk. The map above shows the ...

A red flag warning means that warm temperatures, very low humidity and strong winds are expected to combine to create an increased risk of fire danger, according to the NWS.

Red flag warnings are confined to specific areas, often outlined on maps put out by public safety departments. In many cases, flat coastal areas may be outside the warning zone, while nearby hilly ...

The National Weather Service (NWS) has issued a "red flag warning" across 11 states on Friday, due to conditions being prime for wildfires. Nearly all of Wyoming is under a red flag warning ...

Red flag warnings are typically issued during the spring and fall fire seasons, the weather service says, which is Feb. 15 to April 30 and Oct. 1 to Dec. 15. What to do if you get a red flag warning ...

A Red Flag Warning has been issued for critical fire weather conditions. It's in effect from 11 AM Tuesday - 7 AM Thursday for the majority of the Bay Area and higher elevations of the Central Coast.

Red flag warning map from the National Weather Service in Gaylord, Michigan, on April 28, 2025. National Weather Service "Be careful with any activities that could potentially lead to a ...

A map from the National Weather Service has shown that three full states are under a sweeping weather service warning. The states of Massachusetts, Connecticut, and Rhode Island are all under Red ...

According to the National Weather Service's map of the United States today, red flag warnings are active in eastern Illinois, including the Chicago area, as well as across northern Indiana right ...