CHANHASSEN, Minn. — Red Flag Warnings have been issued by the National Weather Service (NWS) for most of Minnesota and parts of northern Wisconsin until late tonight due to extreme fire danger.

We know what tornado and thunderstorm warnings are, even flash flood warnings. Do you know what a red flag warning is? Here's is the answer.

A red flag warning was issued by the National Weather Service in Denver at 12:58 AM on Sunday, April 20.

The National Weather Service has issued a red flag warning for Coconino County through 8 p.m. April 17.

Nearly all of South Florida was under a Red Flag Warning on Saturday as the National Weather Service in Miami warns of dangerous fire weather conditions that could lead to fast-spreading wildfires ...

Meteorologist Tony Pann goes over the Red Flag warnings across the Baltimore area. The warning means that once a brush fire starts, it could spread very easily.

The warning is in effect from 11 a.m. to 7 p.m. Wednesday for areas along and east of the Blue Ridge and the central Shenandoah Valley. Conditions include dry and gusty winds, low humidity, and warm ...

The National Weather Service has issued a red flag warning for all of east central Florida and South Florida.

The National Weather Service has issued a red flag warning for all of east central Florida and South Florida.

Blizzard warnings are in effect from Kansas to Minnesota, and red flag warnings are active across eight states. Over 20 million Americans are on alert for dangerous fire weather.

A red flag warning means conditions exist that could lead to a wildfire. A fire warning is issued when there is an active fire spreading that is threatening life and property.