Lightning Safety
Lightning kills approximately 40 people per year in the US. The 30-30 Rule: if the time between lightning flash and thunder is 30 seconds or less, take shelter immediately. Wait 30 minutes after the last thunder before resuming outdoor work. Ground-mounted lightning rods do not protect large work areas — seek a substantial building or hard-top vehicle.
Wet Work Electrical Hazards
Water dramatically reduces electrical resistance. Never use unprotected electrical equipment in wet conditions. All temporary power in wet areas must have GFCI protection. Inspect extension cords for insulation damage before wet-weather use. Keep electrical equipment elevated off wet ground. Never touch electrical equipment with wet hands.
Slip & Trip Hazards
Wet surfaces, mud, and ice dramatically increase slip/fall risk. Walk-don't-run on wet surfaces. Use slip-resistant footwear. Install matting at site entrances and high-traffic areas. Barricade icy areas. Report slippery conditions to your supervisor. Extra caution on scaffolding, ladders, and elevated work platforms in wet conditions.
Weather Delay Procedures
LEO's weather delay policy: site superintendent calls weather delays based on NOAA forecasts and on-site conditions. Conditions that trigger work stoppage: sustained winds over 25 mph (elevated work), lightning within 10 miles, visibility below safety threshold, or ice/snow accumulation on work surfaces. Workers are paid for weather delays per the applicable labor agreement. Never pressure workers to continue in unsafe weather.
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