Weather

Florence continues to batter the Carolinas on Sunday, with the storm drifting slowly and causing heavy rainfall and extensive, severe flooding through the Carolinas. Winds are not as strong, but remain gusty and powerful enough to knock down trees and cause power outages. As the storm turns more to the northwest, the risk of heavy rain will extend farther north through the Appalachian Mountains with the risk of flash flooding. Parts of the Ohio Valley may start to get downpours by Sunday night.

Another area of heavy rain has been affecting Texas, as a tropical disturbance has pushed westward through the region. Most of the stormy weather will be focused over the Hill Country on Sunday, where tropical downpours and flash flooding remain likely.

Much of the rest of the eastern two-thirds of the country will remain rain-free, with a very warm and humid air mass for late summer stretching from the Atlantic coast through the Plains. There will be spotty showers in South Florida at the southern edge of this air mass, as well as near the Canadian border with Montana and the Dakotas.

Temperatures will remain cooler than normal through the Northwest, but seasonably hot across the Southwest.

Focus: Isaac Being Monitored

Isaac will pass through the Caribbean Sea into Monday, bringing gusty showers to Puerto Rico, Hispaniola and Jamaica. All interests along the U.S. Gulf Coast should monitor Isaac, as it may gain strength in the Gulf of Mexico late this week.