The July Fourth flood moved so quickly in the middle of the night that it caught many off guard in a county that lacked a warning system.

Democratic Representative Jared Moskowitz has called for Homeland Security Secretary Kristi Noem to be investigated over the Federal Emergency Management Agency's response to catastrophic flooding in Texas.

Some governors and mayors are concerned over how current or potential cuts to agencies will impact how the government can respond in the future to major weather events.

July 9 (Reuters) - U.S. Homeland Security Secretary Kristi Noem called on Wednesday for the Federal Emergency Management Agency to be eliminated in its current form, even as the disaster-relief agency deployed specialists and supplies to Texas to help respond to devastating floods.

Federal regulators removed dozens of Camp Mystic buildings from a 100-year flood map as the camp looked to expand.

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

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

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.