Fox News Weather Center

Tropical System Could Deliver One Foot of Rain to Mexico

The latest tropical system in the Eastern Pacific will bring a new round of dangerous and life-threatening flooding and mudslides to areas in Mexico already hit hard since the summer.

A developing tropical system over the Eastern Pacific that will likely soon garner the name Tropical Storm Sonia is forecast to turn northeastward into early next week, reaching part of the west coast of Mexico.

States to watch in Mexico for heavy rain and flooding issues include southern Baja California Sur, Sinaloa, Nayarit and Durango.

Mexico cities that could experience flooding problems include Mazatlan, Culiacan, Los Mochis, Durango and La Paz. There is the potential for 6 to 12 inches of rain along the path of the systems as it moves inland and the moisture is squeezed out over the southwestern-facing slopes along the Mexico mainland.

Similar to what happened Raymond's moisture last week, some moisture from Sonia will survive the trip over the Mexico mountains and will join up with a new storm forecast to affect Texas and the southern Plains later next week.

Enough rain could fall in the South Central states to bring a new round of flash and urban flooding from Wednesday to Thursday of next week.

The Eastern Pacific has produced 16 tropical systems through the end of October, including seven hurricanes. Three (Barbara, Manuel and Octave) have made landfall along the west coast of Mexico this season yielding flooding rainfall. However, five others (Erick, Ivo, Julliette, Lorena and Raymond) that paralleled the coast just offshore also brought swaths of rain and flooding.

Manuel and Octave caused significant rain and flooding in the southern Gulf of California region.

At least four other systems (Barry, Fernand, Ingrid and Karen) from the Atlantic Basin brought heavy rain and flooding to some eastern portions of Mexico this season.