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Hanna weakens, dumps heavy rain over southeast Texas and Mexico; another system developing in Atlantic

Paola PĂ©rez, Orlando Sentinel on

Published in Weather News

ORLANDO, Fla. -- After picking up strength and making landfall as a Category 1 hurricane Saturday, Hanna is now a tropical storm, producing heavy rain and dangerous flash flooding over parts of southeast Texas and northeast Mexico.

Tropical Storm Hanna was last located 55 miles west of McAllen on Sunday, moving west southwest at 9 mph and packing maximum sustained winds of 50 mph with higher gusts, according to the National Hurricane Center's latest advisory.

Tropical-storm-force winds extend outward up to 115 miles mainly over water to the east of the center, forecasters said.

Hanna's center will continue moving inland over northeastern Mexico through Sunday night. A tropical storm warning is in effect from Baffin Bay, Texas to Barra el Mezquital, Mexico.

Hanna poses no threat to Florida at this time. But the hurricane center is watching yet another broad area of low pressure with potential for development.

The low pressure area was located about 1,000 miles west southwest of the Cabo Verde Islands on Sunday morning, moving west across the Atlantic at about 20 mph as it produced a "wide area of disorganized showers and thunderstorms," the NHC said.

 

A 60% chance of development into a tropical depression is possible within the next 48 hours, and within the next five days the chances rise to 90%.

Tropical Storm Hanna is expected to rapidly weaken to a depression "later today and dissipate Monday" as it moves farther inland.

However, forecasters stressed that "heavy rainfall, strong winds, storm surge, dangerous surf, and isolated tornadoes remain a threat."

Hanna is expected to dump 6 to 12 inches of rain, perhaps up to 18 inches in some areas, through Sunday night in south Texas and nearby Mexican states. 2 to 4 inches of rain along the upper Texas and Louisiana coasts is also expected.

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