Heavy street flooding some areas of upper Plaquemines Parish is beginning to subside while rain continues to pour in the lower part of the parish, officials said around 12:30 p.m. Monday.

Areas in St. Bernard and Plaquemines parishes remain under a tornado watch until 1 p.m., according to the National Weather Service, although forecasters say a tornado is not immediately likely.

Forecasters earlier had issued a tornado warning for those areas, and urged residents to take cover after a tornado was spotted at U.S. Naval Air Station in Belle Chasse. That warning was lifted at 11:30 a.m.

A front security building’s awning at the base was damaged, according to Commander Eric Becnel, a spokesman for the Plaquemines Parish Sheriff’s Office

In Plaquemines, authorities reported golf ball-sized hail in the Jesuit Bend to Myrtle Grove areas, and several down power lines and leaning power poles in the Jesuit Bend area, including one in the 5500 block of Highway 39 in Braithwaite, Becnel said.

Minor wind damage was reported to buildings in the 5500 block of Highway 39 in Braithwaite. A tree also reportedly fell on a mobile home in the 17000 block of Highway 15 in Davant.

Patrick Harvey of the Plaquemines Parish Office of Homeland Security and Emergency Preparedness confirmed that a tornado that touched down at the Naval base did not move outside the base.

He said he spoke with the emergency manager there and tornado only lasted about a minute and crews were assessing the situation.

Harvey said Plaquemines has first responders travelling through the parish now that the rain has lightened up. He said the parish got four inches of rain in 30 minutes and “it’s just taking time for the pumps to catch up.”

By 12:30 p.m., more than 5,110 households had lost power in St. Bernard, according to Entergy Louisiana. In Plaquemines, almost 2,900 households were in the dark.