hazard

"We human beings are living in this boundary layer, so understanding and accurately modeling it is essential for storm forecasting and hazard preparedness," said author Qiusheng Li.

Even after Luna was injured, the city didn’t address the hazard, Zabetian said.

In a statement, it described the investigation as “frivolous” and said “all temporary and full-time workers understand the hazards and appropriate safety measures of their assigned role.”

One resident, who did not want to be named, said what happened to Riley was "not a surprise" and there were other safety hazards, including loose manhole covers.

Large hail and squally winds will also be a hazard.