Updated at 10:57 p.m. ET
Tropical Storm Karen has reached Puerto Rico and the U.S. Virgin Islands, bringing heavy rain, flash flooding and winds of 45 mph.
The storm will continue to lash the area overnight and "move over the western Atlantic later tonight and Wednesday," according to the National Hurricane Center.
Karen is expected to produce 3 to 6 inches of rain through Wednesday. The National Weather Service has issued a flash flood warning in several areas in response to the large amount of rain.
Residents have been advised to be wary of strong winds and waterspouts.
According to the NHC's 11:00 p.m. advisory, Karen is located 85 miles northeast of San Juan and 50 miles north of St. Thomas, moving north-northeast at 14 mph.
Karen is one of three active tropical storms in the Atlantic. Experts are watching Tropical Storm Lorenzo, which is forecast to become a hurricane Tuesday night or Wednesday. The NHC has not posted any coastal watches or warnings. The storm is about 545 miles west of the southernmost Cabo Verde Islands, with 70 mph winds.
There is also Tropical Storm Jerry, which is forecast to pass near Bermuda early Wednesday, according to the NHC. Jerry is expected to bring 1 to 2 inches of rain, along with heavy waves.
"Swells generated by Jerry will continue to affect Bermuda during the next few days. These swells are likely to cause life-threatening surf and rip current conditions, the NHC said.
In a noon news conference, government officials from Puerto Rico offered further details on the passage of Karen.
Ernesto Morales with the National Weather Service San Juan stated that 10-foot waves on the southern coast would "aggravate the erosion situation."
Officials also urged people with vulnerable roofs to go to storm shelters. According to a tweet sent by the governor's office, there are 67 open shelters.
Aguaceros de la tormenta Karen comienzan a afectar la zona metropolitana de Puerto Rico. @Metro_PR pic.twitter.com/Zs8yt4rZDw
— Ronald Ávila-Claudio (@ronaldavilapr) September 24, 2019
The tropical storm came ashore in Puerto Rico a day after a magnitude 6.0 earthquake struck nearly 50 miles from the island's shoreline. The U.S. Tsunami Warning Center did not issue any tsunami advisories.
Severe thunderstorms are capable of producing waterspouts and wind gusts up to 40 knots across the Caribbean waters. Tronadas severas capaces de producir trombas marinas y ráfagas de vientos hasta 40 nudos a través de las aguas del Caribe. #prwx #usviwx pic.twitter.com/rWH4hOx3JH
— NWS San Juan (@NWSSanJuan) September 24, 2019
The latest storm comes as Puerto Rico is still recovering from Hurricane Maria, which hit the island two years ago. The local government estimates that about 30,000 families are living under blue plastic tarps, a symbol of post-hurricane construction.
NPR intern Jessica Piper contributed to this report. Paolo Zialcita is an intern on NPR's News Desk.
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