Damage from Hurricane Harvey is expected to total tens of billions of dollars. Current estimates range from $20 billion to $40 billion, but only one in six have insurance.

Bloomberg reports Harvey's Cost Reaches Catastrophe as Modelers See Many Uninsured.

Hurricane Harvey's second act across southern Texas is turning into an economic catastrophe — with damages likely to stretch into tens of billions of dollars and an unusually large share of victims lacking adequate insurance, according to early estimates.

Harvey's cost could mount to $24 billion when including the impact of relentless flooding on the labor force, power grid, transportation and other elements that support the region's energy sector, Chuck Watson, a disaster modeler with Enki Research, said by phone on Sunday. That would place it among the top eight hurricanes to ever strike the U.S.