The last days of July will bring rains heavy enough to trigger a flash-flood watch to southern Utah.
A storm system will move into the state from Arizona starting Monday, said National Weather Service meteorologist Mike Seaman. Slot canyons in Zion and Capital Reef National Parks could be dangerous as the rain starts to fall, and the weather service has issued a flash-flood watch for the southern third of the state through 10 p.m. Monday. Some areas could see up to an inch or two of rainfall.
The storms could reach Salt Lake City on Monday or Tuesday, but the northern part of the state should dry out by Wednesday. Southern Utahns, though, will likely see wet weather through the end of the week, Seaman said.
Temperatures could reach the high 90s in Salt Lake City on Monday. Southern Utah should be cooler, at around 90 in St. George and 80 in Cedar City.