Dolly gains hurricane strength

(CNN) - Dolly has reached hurricane strength and is expected to drench much of northern Mexico and southern Texas over the next few days, the National Hurricane Center said Tuesday.

Dolly is a Category 1 hurricane on the Saffir-Simpson scale, with maximum sustained winds of 75 mph gusting to 90 mph, the center said.

At 5 p.m. ET, the season's second hurricane was centered about 165 miles east-southeast of Brownsville, Texas.

"It's not going to be a picnic out on Padre Island," Read said. "On the beach you're going to have very high winds, storm surge of 5 to 6 feet."