Key positions at National Weather Service offices across Texas are vacant, sowing doubt over the state’s ability to respond to natural disasters as rescuers comb through the flood-ravaged Hill Country.

NWS says Flash Flood Warnings were issued on July 3 and early July 4 in Central Texas, giving more than three hours of warning.

"A lot of the weather forecast offices now are not operating at full complement of staff," said the former lead of NOAA.