The National Weather Service has issued a dust storm warning for Maricopa County starting at 4:22 p.m. July 21. The warning expires at 5:15 p.m. July 21.

For the latest watches and warnings, see our weather alert page.

A “haboob” typically occurs in Arizona during monsoon. From June to September, large dust storms can occur across the state as high winds pick up loose dust.

“Haboob” is an Arabic word that translates to “big, blasting winds.” explained Andrew Deemer, a meteorologist from the National Weather Service in Phoenix and former linguist.

Terminology: When did we start using haboob to describe dust storms in Arizona

What should I do in a dust storm if I am driving?

The Arizona Department of Transportation has helpful tips for drivers who may get stuck in a dust storm while driving. The “Pull Aside, Stay Alive” campaign aims to save drivers from dangerous situations by providing tips to survive a blowing dust event.

• If you encounter a dust storm, immediately check traffic around your vehicle (front, back and to the side) and begin slowing down.
• Do not wait until poor visibility makes it difficult to safely pull off the roadway – do it as soon as possible. Completely exit the highway if you can.
• Do not stop in a travel lane or in the emergency lane. Look for a safe place to pull completely off the paved portion of the roadway.
• Turn off all vehicle lights. You do not want other vehicles, approaching from behind, to use your lights as a guide and possibly crash into your parked vehicle.
• Set your emergency brake and take your foot off the brake.Stay in the vehicle with your seat belt buckled and wait for the storm to pass.
• Drivers of high-profile vehicles should be especially aware of changing weather conditions and travel at reduced speeds.

More information on dust storm safety can be found at PullAsideStayAlive.org and safety tips for driving in rainstorms can be found at azdot.gov/monsoon

This article was generated by The Arizona Republic and USA TODAY Network using data released by the National Weather Service. It was edited by a staff member.