MEXICO CITY, Oct 1 (Reuters) - A new storm system, which

bore down on Mexico's southern Pacific coast and nearby

Guatemala on Tuesday night, is expected to move inland on

Wednesday, according to the U.S. National Hurricane Center

(NHC).

The tropical depression, dubbed Eleven-E as it is not yet a

named storm, would likely strengthen to tropical storm strength

overnight, threatening fresh flooding and landslides, the NHC

said. The area recently saw devastating rainfall.

Last week, Hurricane John and its remnants dumped massive

amounts of rain over a large swathe of Mexico's southwestern

coast, triggering deadly mudslides that led to at least 22

deaths.

The Miami-based forecaster said the tropical depression is

located about 75 miles (121 km) southeast of the major Mexican

port of Salina Cruz in Oaxaca state. The port is home to a major

oil refinery operated by national oil company Pemex.

The company did not immediately respond to a request for

comment after its business hours.

The storm system is expected to produce between 4 inches and

12 inches (10 cm and 30 cm) of rain across several southern

Mexican states, as well as along a stretch of western Guatemala,

the NHC said.