flash flooding

Hurricane Polo Slams Mexico's Pacific Coast, Takes Aim at U.S. Southwest

Hurricane Polo battered Mexico's Pacific coast and is now tracking toward the U.S. Southwest, where forecasters warn of heavy rain and flash flooding.

Polo Remnants Threaten Life-Threatening Flash Floods Across Southwest

Forecasters warn that moisture from Tropical Storm Polo could trigger dangerous flash flooding across Arizona, New Mexico and parts of Texas through the weekend.