Six states have been placed under expanded red flag warnings amid a severe weather outbreak in the U.S. this weekend that could trigger "catastrophic grassland fire danger" for affected areas.

Red flag warnings are issued when there is a dangerous combination of weather conditions coming together over a certain area that could lead to rapid growth and spread of a fire. Think of how a tornado watch works, conditions are favorable, and the area is being monitored for development.

Many wildfires in eastern Oklahoma have already sparked this March, and this week, the state will begin moving toward ‘extreme’ wildfire level risk.

Texas will experience wind gusts of up to 55 mph in parts on Wednesday, while relative humidity will plummet to as low as six percent.

In Oklahoma, red flag warnings are issued when conditions such as high temperatures, low humidity, and strong winds create a heightened risk of wildfires, urging residents to take extra precautions.

Heavy wind can impact travel safety, reduce air quality, cause property damage and exacerbate the risk of wildfire.