Two days before deadly Central Texas floods killed at least 27 people at Camp Mystic, a state inspector certified that it had an emergency plan in place and that its cabins and other buildings were safe.

Camp Mystic was overrun by flash flooding that started on Independence Day. Rapidly rising waters ripped through the century-old all-girls Christian summer camp, killing at least 27 people. Others are still missing.

A downpour in the scenic Texas Hill Country quickly turned catastrophic in the early morning hours of the July Fourth holiday.

Texas Governor Greg Abbott said Tuesday that many of those who are not accounted for were staying in state’s Hill Country but did not register at a camp or hotel.

Scientists say a hotter planet is driving more intense storms. But experts say the U.S. is also not doing enough to adapt to increasingly intense floods.