UPDATE 2-Tropical Storm Cindy downgraded to tropical depression after landfall

landfall@ (Adds that storm was downgraded)

June 22 (Reuters) - Tropical Storm Cindy was downgraded to a tropical depression on Thursday after reaching land near the Texas-Louisiana border, but heavy rains, flooding and tornadoes still threatened parts of several states, the U.S. National Hurricane Center said.

Cindy was considered a tropical storm when it hit land early Thursday. By 10 a.m. CT (1500 GMT), the storm was centered about 60 miles (98 km) north of Lake Charles, Louisiana, with maximum sustained winds of 35 miles per hour (65 km/h).

The National Hurricane Center (NHC) said no further advisories would be issued for the storm, which was no longer considered a tropical storm after its sustained winds dropped below 39 miles per hour (63 kmh).

The storm is expected to continue to weaken but still carry heavy rains as it moves over eastern Texas, northern Louisiana, southern Arkansas, western and central Tennessee, and most of Kentucky and West Virginia, as well as parts of Indiana, Ohio and western Pennsylvania, the Miami-based weather forecaster said.

It is forecast to reach southeastern Arkansas early Friday and Tennessee later that day, the NHC said.

"Life-threatening" flash flooding was possible as the storm could drop three to six inches (8-15 cm) of rain and as much as eight inches in some parts of Texas, Louisiana and Arkansas, the NHC said. Up to eight inches of rainfall was expected in southern portions of Mississippi, Alabama and Florida through Friday morning.

The storm's first fatality was reported on Wednesday, when a 10-year-old boy was struck by a log dislodged by a large wave as he stood near the shore in Fort Morgan, Alabama, the Baldwin County coroner said.

The storm could cause a surge of up to three feet (1 meter) in isolated areas from southeastern Louisiana to the western Florida Panhandle, and possibly spawn tornados from the lower Mississippi and Tennessee Valley regions to the central Gulf Coast, the NHC said.

There were no tornadoes reported on Thursday by the National Weather Service, which said there were two in Mississippi and one in Alabama on Wednesday.

After posing a threat to the massive energy industry in and along the Gulf of Mexico earlier, by Thursday morning, Cindy was having little to no effect on oil and natural gas production, energy companies said.

Power outages in the area of the storm were minimal on Thursday morning. (Reporting by Brendan O'Brien in Milwaukee, Scott DiSavino in New York and Bernie Woodall in Fort Lauderdale, Fla.; Editing by Colleen Jenkins and Bernadette Baum)