More: 'Catastrophic' flooding devastates Kerrville, Texas: How to help and where to get help Map: Road closures, driving conditions in Texas Warning vs watch: What is a flash flood warning?

The Madre Fire in San Luis Obispo County grew to 52,500 acres entering the Fourth of July weekend. See where California wildfires are burning.

See where the Madre Fire is burning right now.

The resulting "lung health" scores are shown below on the map created by Newsweek, alongside the rankings of the ten worst states for lung health.

Residents in the path of a wildfire in California have been urged to flee as officials order evacuations across the region. Dubbed the "Wolf" fire, the blaze is burning across some 1,165 acres in ...

The Wolf Fire forced nearly a dozen areas to evacuate after setting over 1,000 acres ablaze in California.