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  1. Home
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  3. Lightning, monsoon and severe weather
Topic

Lightning, monsoon and severe weather

Stop work for lightning, secure the site against wind and flood, check before restarting.

Key points

  • Stop outdoor work as soon as you hear thunder or see lightning. Move everyone into a proper building.
  • Stop all outdoor work when wind passes 60 km/h. MEWPs stop at 45 km/h or their own limit, whichever is lower.
  • Get workers out of excavations, basements and tunnels in heavy rain unless they are protected from flooding.
  • Inspect structures, ground and equipment after the storm. Do not restart until it is safe.
Know itLightning, monsoon and severe weather: what supervisors need to knowPlan for lightning, strong winds and floods on site: myENV alerts, when to stop work, wind limits for MEWPs and cranes, and checks before restarting.Read the guide → Check itSevere weather checklistSite checklist for lightning, strong winds and heavy rain: alerts, shelters, wind limits for MEWPs and cranes, flood protection and restart checks.Open the checklist → Brief itToolbox talk: lightning and stormsA five-minute toolbox talk on lightning and storms for outdoor crews: stop at the first thunder, where to shelter, wind limits and checks before restarting.Use the toolbox talk →

All lightning, monsoon and severe weather resources

Guide

Lightning, monsoon and severe weather: what supervisors need to know

Nurul Hidayah Binte Azman · Oct 20, 2026
Checklist

Severe weather checklist

Nurul Hidayah Binte Azman · Oct 20, 2026
Toolbox talk

Toolbox talk: lightning and storms

Nurul Hidayah Binte Azman · Oct 20, 2026

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