MIAMI (AP) -- Forecasters say a tropical depression is dumping heavy rains on Central America as it trudges toward southern Mexico.

The National Hurricane Center in Miami said the Atlantic season's second tropical depression could bring up to 10 inches of rain across parts of Belize, Guatemala and southern Mexico. The depression formed Monday off Belize.

It was moving Tuesday over parts of Belize and northern Guatemala with maximum sustained winds of 30 mph (48 kph). It is traveling west-northwest at 8 mph (13 kph).

Forecasters say the depression could strengthen Wednesday nearing Mexico's Bay of Campeche. The heavy rains may cause flash flooding, but no coastal watches or warnings have been issued.