Convenience Big Store: Stubborn high pressure worsens Houston's air quality. Here's how.

SALE! 3 Months for 25¢

Access news, guides, puzzles and more.

Sale Ends Sept. 14

Texas Hurricanes [Simplified]: Get ready and stay informed this hurricane season. Sign up for our hurricane prep course, and we'll text you tips on how to prepare yourself, your home and your go-bag for a hurricane. Plus, we'll text you updates whenever a storm forms in the gulf.

Trees from Memorial Park buffer the view of Houston?s skyline on a hazy hot day in Houston. Hot weather exacerbates ozone, an air pollutant that's harmful to asthmatics.

Photo by: Elizabeth Conley/Staff Photographer

Stubborn high pressure worsens Houston's air quality. Here's how.

Houston faces hazardous air quality Friday as a dome of stagnant high pressure lingers, worsening pollution and creating health risks.

Notice: You're receiving this daily forecast as part of your subscription to the Weather Radar newsletter. You can unsubscribe from these alerts at any time here; it won't affect your receiving Monday's newsletter. Questions? Write to us here.