The risk of the catastrophic flooding that struck Texas Hill Country as people slept on July 4 and left at least 120 dead was potentially underestimated by federal authorities, according to an ABC News analysis of Federal Emergency Management Agency data, satellite imagery and risk modeling.

Two days after deadly Texas floods, the agency struggled to answer calls from survivors because of call center contracts that weren’t extended.

Forecasters warn that slow-moving storms could bring heavy downpours to already saturated areas, increasing the risk of flash flooding.

Over 100 people have died after heavy rain pounded Kerr County, Texas, early Friday, leading to "catastrophic" flooding, the sheriff said.

Gov. Greg Abbott announced the federal declaration Friday after formally requesting it for the Austin-area counties Thursday afternoon.

President Donald Trump was expected to arrive in Kerr County, Texas, Friday afternoon, one week after the area was struck by catastrophic flooding.

President Donald Trump is touring the devastation left by flash flooding in central Texas amid growing questions about how local officials responded to the crisis as well as questions about the federal response -- including the fate of the Federal Emergency Management Agency -- that he has so far avoided.

As President Donald Trump heads to Texas on Friday for a firsthand look at the devastation caused by catastrophic flooding, he has remained conspicuously quiet about his previous promises to do