Isaias made landfall near Ocean Isle Beach, N.C., just after 11 p.m. EDT on Monday as a Category 1 hurricane, causing flooding and several home fires. Its maximum sustained winds reached 85 mph. But as the storm center moved inland, it was downgraded to a tropical storm with 70 mph winds and an increasing threat of tornadoes in southeastern Virginia and northward.

Heavy rains lashed the east coast of Florida on Sunday as the tropical storm’s sustained winds fell just below Category 1 hurricane levels. Isaias weakened from a hurricane to a tropical storm on Saturday afternoon after passing over the Bahamas. It is expected to make landfall in the Carolinas on Monday night then sweep up the East Coast, bringing heavy rain and flooding.

Bahamian Prime Minister Hubert Minnis late on Thursday relaxed coronavirus restrictions to allow people to prepare for the storm but announced a 10 p.m. to 5 a.m. curfew beginning on Friday. Hurricane Isaias maintained maximum sustained winds of 80 miles per hour and is expected to track through the Bahamas before moving toward South Florida on Saturday. The Florida Division of Emergency Management closed some drive-thru and walk-up COVID-19 testing sites on Thursday evening as it braced for the Category 1 storm.

Over the weekend, Hanna brought winds of 50 mph and more than 12 inches of rain to parts of South Texas and northeastern Mexico, areas also dealing with a surge of coronavirus cases. The storm made landfall on Saturday on Padre Island, Texas, south of Corpus Christi but weakened to a tropical depression by Sunday night. Although Hanna destroyed boats, flooded streets, and knocked out power, no deaths have yet to be reported on either side of the border.

The storm that dumped rain on the South could join forces with another weather system coming out of the Rocky Mountains this week. Tropical Storm Cristobal, now weakened to a tropical depression, swept through Missouri on Tuesday and is set to bring more rain, high wind, and thunderstorms to the Midwest. The storm already caused flooding and dangerous weather in parts of Louisiana, Mississippi, and Alabama, as well as a tornado in Florida.

Cristobal made landfall on the southeast Louisiana coast on Sunday, packing winds of 50 miles per hour. The storm was below hurricane strength as it moved inland, but forecasters cautioned its effects could stretch some 180 miles along the Gulf Coast. The National Hurricane Center said Cristobal will weaken into a tropical depression today as it moves across southeastern Louisiana, Arkansas, and Missouri before entering Canada on Wednesday.

Floodwaters mixed with water from containment ponds at a Dow Chemical plant in Midland, Mich., after two dams failed along the Tittabawassee River on Wednesday. The company said the ponds just held water and posed no threat. The Environmental Protection Agency said state officials would evaluate the plant when possible. Officials did not report any injuries or deaths in the flood, but they asked about 10,000 evacuees not to return to the area yet. The National Weather Service said flooding could affect communities farther downstream from Midland in the coming days.