NHC says tropical depression Alberto moving across west-central Indiana

May 30 (Reuters) - The center of tropical depression Alberto, which threatens heavy rainfall, is moving across west-central Indiana, with little-change in strength forecast during the next 36 hours, the U.S. National Hurricane Center (NHC) said on Wednesday.

The system will transition to an extratropical wave cyclone as the remnant circulation encounters an upper level trough moving east across the Great Lakes through Thursday, the Miami-based weather forecaster said.

Tropical depression Alberto is located about 70 miles (113 km) south of South Bend, Indiana with maximum sustained winds of 30 miles per hour (45 kph), it said. (Reporting by Vijaykumar Vedala and Sumita Layek in Bengaluru; Editing by Lisa Shumaker)