发布时间：2026-07-22
Lightning warning systems grade their response by storm distance: 20 km — get ready; 10 km — suspend hazardous outdoor work; 5 km — execute emergency procedures. Here is how the zones are set and used.
Lightning warning systems grade their response by storm distance: 20 km — get ready; 10 km — suspend hazardous outdoor work; 5 km — execute emergency procedures. Here is how the zones are set and used.