How to Write an Event Emergency Plan (Weather, Power and Cancellations)

Every experienced event planner knows that something unexpected will happen. A supplier calls in sick, the heavens open over an outdoor ceremony or the power cuts out halfway through the speeches. The difference between a minor hiccup and a disaster is having a plan before it happens. An event emergency plan does not need to be complicated. It just needs to be written down and shared with the right people.

Start With a Risk Assessment

A risk assessment helps you identify what could go wrong and how likely it is. For many events, it is also a requirement of the venue or local authority.

1. List the Risks: Weather, power failure, supplier no-shows, medical emergencies, overcrowding, fire, lost children and security issues.
2. Assess Likelihood and Impact: Rate each risk as low, medium or high.
3. Plan a Response: Decide what you will do, who is responsible and what resources you need.
4. Review and Share: Update the plan as details change and share it with your team and key suppliers.

Planning for the Weather

In the UK, the weather is the most common risk for outdoor events.

• Wet Weather: Have a marquee, indoor space or covered area ready. Provide umbrellas, matting for walkways and towels for chairs.
• Hot Weather: Provide shade, water and sun cream, and plan for guests who may feel unwell.
• High Winds: Check the safe wind limits for marquees, inflatables and staging. Your marquee supplier will advise when structures must be closed.
• Decision Points: Agree in advance when and how you will decide to move the event indoors, and who makes the call.

Preparing for Power Failures

Power is essential for lighting, sound, catering and safety equipment. Ask your venue about backup power and emergency lighting. For outdoor events or marquees, hire a generator with enough capacity and a backup unit for critical equipment. Your lighting and sound supplier should know the power requirements of every piece of equipment.

Keep torches, battery-powered lanterns and a fully charged power bank in your event kit, and make sure staff know where fuse boards and emergency exits are.

Backup Suppliers

A single supplier cancellation can affect the whole event. Build relationships with backup options in advance.

• Key Suppliers: Keep details of alternative caterers, DJs, photographers and transport companies.
• Contract Clauses: Check whether suppliers will provide a replacement if they cannot attend.
• Contact Sheet: Keep a printed list of every supplier's name, phone number and arrival time.

In our experience at EMO, a strong network of trusted suppliers is the most valuable insurance an event can have. Browsing a directory of vetted event suppliers makes it far easier to find a replacement quickly.

Understanding Venue Clauses and Insurance

Read your venue contract carefully. Understand cancellation terms, force majeure clauses, maximum capacity and the venue's own emergency procedures. Ask who is responsible for security, first aid and evacuation.

Event insurance can protect you against cancellation, supplier failure, extreme weather, damage and public liability claims. Check exactly what is covered and the deadlines for buying a policy. Many policies need to be in place well before the event.

First Aid and Medical Emergencies

For larger events, book trained first aiders or a medical provider. For smaller gatherings, make sure at least one person has first aid training and that a well-stocked first aid kit is available. Know the address and postcode of the venue, the nearest hospital with an A&E department and the location of the nearest defibrillator.

Communicating the Plan

• Brief Your Team: Everyone should know their role in an emergency.
• Assign a Lead: One person makes decisions and communicates with guests.
• Prepare Messages: Draft text and email templates for delays, changes or cancellations.
• Know the Exits: Make sure staff and suppliers know evacuation routes and assembly points.

Final thoughts

An event emergency plan is something you hope never to use, but it gives you the confidence to handle anything. Assess your risks, prepare for weather and power issues, line up backup suppliers, check your contracts and insurance and share the plan with your team. When the unexpected happens, you will be ready.