VERACRUZ, Mexico -- Two tropical systems were converging on Mexico's east and west coasts Saturday, sparking authorities to evacuate coastal residents and set up shelters while watching rising rivers.

Hurricane Ingrid was gathering strength off Mexico's Gulf Coast, with forecasters predicting further increases in speed. They said Ingrid would likely become a hurricane Saturday afternoon.

"Mexico will have to deal with not just one, but two, tropical entities," said weather.com meteorologist Chrissy Warrilow. "Ingrid will be lashing the eastern coast bringing as much as two feet of rain to areas already inundated by Tropical Storm Ferdinand and Tropical Depression 8."

Though Ingrid will likely make landfall in Mexico, the U.S. will still see some impact.
"U.S. cities including Brownsville and Corpus Christi by heavy rain and wind from Ingrid."

A hurricane watch is in effect north of Cabo Rojo to La Pesca. A tropical storm warning is in effect from Coatzacoalcos to Cabo Rojo.

Manuel is expected to produce 10 to 15 inches of rain over parts of the Mexican states of Oaxaca and Guerrero, and life-threatening flash floods and mudslides are likely.

"Manuel will be moving into areas of Mexico with lots of mountainous features," said Warrilow. "Heavy rain, mudslides, and dangerous flash flooding are expected to occur.

Elsewhere, the remnants of Tropical Storm Humberto were swirling in the Atlantic, far from land. It was expected to regenerate in a couple of days, according to the Hurricane Center.

In Veracruz state off the Gulf Coast, state officials were evacuating communities in eight cities near the Tecolutla river where authorities reported higher-than-normal water levels.

State officials said they had also opened 12 shelters where they've directed some 1,000 people. Many have opted to stay with relatives and others.

A bridge collapsed near the northern Veracruz city of Misantla Friday, cutting off the area from the state capital. Thirteen people died when a landslide buried their homes in heavy rains spawned by Tropical Depression Fernand on Monday.

State officials imposed an orange alert, the highest possible, in parts of southern Veracruz.

http://www.weather.com/news/weather-hurricanes/two-tropical-storms-converge-mexico-20130914