Parts of North Texas are under critical or extreme fire threats on Monday, according to the National Weather Service.As a result of those very high winds, and also extremely low relative humidity, a red flag warning is in place for counties west of Dallas-Fort Worth from 11 a.

The National Weather Service has issued a red flag warning Monday, March 17 for parts of North Texas due to dangerously dry conditions. NWS meteorologist Miles Langfeld said areas west of I-35 are under threat the afternoon of March 17, and the same warning extends further west of highway 281 for Tuesday, March 18.

The Treasure Coast will be under a red flag warning from noon to 8 p.m. Monday, according to the National Weather Service. Here's what that means.