Severe weather can develop rapidly and place construction workers at immediate risk. High winds, tornadoes, lightning, hail, hurricanes, and other severe weather events can make outdoor work unsafe within minutes. Every worker should know where designated shelter areas are located, how severe weather warnings will be communicated, and what actions to take when sheltering becomes necessary. Planning ahead and responding quickly can prevent serious injuries and save lives.
This toolbox talk reviews the importance of identifying safe shelter areas and following established emergency procedures during severe weather events.
Why This Matters
- Severe weather can create life-threatening conditions with little warning.
- Knowing where to shelter reduces confusion during emergencies.
- Quick action helps protect workers from high winds, lightning, flying debris, and structural hazards.
- Established shelter procedures improve accountability and emergency response.
- Preparation allows crews to respond safely when weather conditions change rapidly.
Common Severe Weather Hazards
- High winds capable of moving equipment and materials.
- Lightning strikes affecting outdoor workers and elevated structures.
- Tornadoes and rotating storms producing destructive winds and debris.
- Heavy rain causing flooding, reduced visibility, and slippery conditions.
- Hail creating impact hazards and damaging equipment.
- Flying debris from unsecured materials or temporary structures.
- Falling trees, utility poles, or energized power lines.
- Structural damage caused by severe weather.
Safety Checklist
Before Severe Weather Occurs
- Know the location of designated shelter areas before starting work.
- Review the site's severe weather emergency procedures during safety meetings.
- Monitor weather forecasts and emergency alerts throughout the workday.
- Secure tools, materials, equipment, and temporary structures when severe weather is expected.
- Identify evacuation routes leading to designated shelter locations.
- Ensure all workers understand how severe weather warnings will be communicated.
During Severe Weather
- Stop work immediately when instructed by supervisors or when severe weather creates an immediate hazard.
- Proceed promptly to the designated shelter area using established routes.
- Avoid open areas, scaffolding, cranes, aerial lifts, rooftops, and other exposed locations.
- Stay away from windows, exterior walls, and large unsupported roof areas whenever possible.
- Remain in the shelter until authorized personnel determine it is safe to leave.
- Participate in personnel accountability procedures after reaching the shelter area.
Crew Talking Points
- Where is today's designated severe weather shelter area?
- How will workers be notified if sheltering becomes necessary?
- What hazards are most likely during today's weather conditions?
- What equipment or materials should be secured before severe weather arrives?
- Who is responsible for directing workers to shelter during an emergency?
- Speak up immediately if designated shelter areas are inaccessible or severe weather conditions worsen.
Stop Work If
- A severe weather warning or shelter order has been issued.
- Lightning, high winds, tornadoes, or other dangerous weather create an immediate hazard.
- Safe access to the designated shelter area is blocked or compromised.
- Temporary structures or equipment become unstable because of weather conditions.
- Workers cannot safely evacuate or shelter according to the emergency plan.
- You are unsure whether it is safe to remain in the work area.
Final Reminder
Preparation is the key to surviving severe weather safely. Know where designated shelter areas are located, understand how emergency notifications will be communicated, secure the worksite when time permits, and move to shelter immediately when instructed. Never delay seeking shelter during severe weather—your safety is always the highest priority.
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