How to Prepare Your Household for a Tropical Cyclone

A tropical cyclone is a large, rotating storm that forms over warm ocean water and can bring some of the most dangerous weather on Earth. Depending on where you live, the same kind of storm is called a hurricane, a typhoon, or a tropical cyclone — the name changes by region, but the hazards are identical: violent wind, a surge of seawater pushed onshore, and torrential rain that can flood areas far from the coast.

Unlike many hazards, a tropical cyclone rarely arrives without warning — forecasters can usually track one for days before it reaches land. That advance notice is a real advantage, but only if a household uses it. Too many people focus on the wind and underestimate the water: storm surge and inland flooding cause a large share of cyclone-related deaths in many seasons, and both can strike well after the strongest winds have already passed.

The households that come through a cyclone safest are the ones who know their risk before the season starts, prepare their property and supplies in advance, and act early on official warnings rather than waiting to see what happens. This guide walks through what to do before, during, and after a tropical cyclone.

Understand Your Cyclone Risk

• Wind. A tropical storm is generally reclassified as a hurricane, typhoon, or severe cyclone once its sustained winds reach roughly 119 km/h. Winds at this strength and above can snap trees, tear off roofing, hurl loose outdoor items like projectiles, and bring down power lines. National forecasters rank storms into categories to communicate how severe the wind threat is — check how your own weather service's scale works.
• Storm surge. As a cyclone nears the coast, its wind and low air pressure can push a wall of seawater onto land, temporarily raising the water level by several metres in severe cases. Storm surge can rise with little warning, travel well inland over low-lying ground, and is one of the most dangerous — and most underestimated — parts of a cyclone.
• Flooding rain. A cyclone can drop hundreds of millimetres of rain in a single day, far more than drains and rivers can carry away. The flash floods and river floods that follow often reach areas well away from the coast and can persist for days after the wind has died down — see How to Prepare Your Household for Flooding for how to protect your home from rising water.
• Watch vs warning. Most national weather services issue a Cyclone or Hurricane Watch when conditions are possible, typically within about 48 hours, and a Warning when they're expected, typically within the next 24–36 hours. Treat a Warning as your signal to finish preparing now, not to start.
• Know your evacuation zone. Coastal and low-lying areas are often assigned an official evacuation zone. Find out now whether you're in one, and what would trigger an evacuation order where you live — it's far harder to check calmly once a storm is already bearing down.

Prepare Before a Tropical Cyclone

• Secure your property. Trim dead branches and weak trees well before cyclone season, clear gutters and drains so rain can run off, and bring loose outdoor items — furniture, bins, trampolines, toys — inside or tie them down firmly. Fit shutters or board up exposed windows if your home is in a high-wind area, and know how to shut off your electricity, gas, and water at the mains.
• Pack an evacuation kit. Put together a bag you can grab in minutes if you're ordered to leave — see What to Pack in a Go Bag: The Complete 72-Hour Evacuation Kit Checklist for exactly what to include.
• Protect your documents and finances. A cyclone can destroy paperwork as readily as it destroys buildings — see How to Protect Your Important Documents and Finances for an Emergency for how to back up and safeguard what you'd need afterwards.
• Plan for an extended power outage. Cyclones are one of the most common causes of prolonged outages, sometimes lasting more than a week — see How to Prepare Your Home for a Power Outage for how to keep your household fed, comfortable, and connected without mains electricity.
• Stock water and food. Keep at least 3 days of supplies on hand — about 3 litres of drinking water per person per day, plus extra for cooking and hygiene — and consider stretching this to two weeks if you live somewhere cyclones regularly disrupt water and power for extended periods. Choose food that needs no cooking or refrigeration, and keep a manual can opener with it.
• Fuel up and charge up. Fill your vehicle's tank, charge phones and power banks, and keep some cash on hand — fuel stations, card readers, and ATMs can all lose power along with everything else.
• Check your insurance. Confirm your policy covers wind damage and, separately, flood damage — the two are often insured differently, and it's far better to find a gap now than after a claim is refused.
• Make a household plan. Agree on a safe room in your home, an evacuation route and destination, and an out-of-area contact everyone can check in with if local phone networks become overloaded.
• Look out for vulnerable household members and neighbours. Agree in advance who will help anyone with limited mobility, a medical condition, or young children to evacuate or shelter, and plan to check on relatives or neighbours living alone as the storm approaches and again once it has passed.

During a Tropical Cyclone

• If you're told to evacuate, go early. Leave calmly by your planned route as soon as an order is issued — don't wait until roads are flooded, blocked by debris, or the storm has already arrived.
• If you're sheltering in place, move to the strongest part of your home — an interior room, on the lowest safe level, away from windows, glass doors, and anything that could fall.
• Keep a battery or hand-crank radio within reach for official updates in case power and mobile networks go down.
• Beware the calm eye. If the wind suddenly drops and the sky clears, the storm is very likely not over — the calm centre, or eye, of the cyclone may be passing directly overhead. Winds will return within minutes to an hour, often just as strong and from the opposite direction. Never go outside during the calm — stay sheltered until officials confirm the danger has fully passed.
• Stay off the roads, and never walk or drive through moving or flood water.
• Stay away from windows, even ones that are boarded or shuttered.

After the Cyclone Passes

• Wait for the official all-clear before leaving shelter or heading home — a calm spell can still be the eye, and roads can stay dangerous long after the wind eases.
• Treat every downed power line as live. Keep well clear, keep others away, and report it — never try to move one yourself.
• Avoid floodwater. It can hide sharp debris, open drains, and submerged power lines, carry disease, and move faster and deeper than it looks — see How to Prepare Your Household for Flooding for more on staying safe around rising or standing water.
• Check your home before you trust it. Look for structural damage, gas leaks, and water damage before going back inside, and air the place out before using anything electrical that got wet.
• Run generators outdoors only, well away from windows and doors — carbon monoxide poisoning is a common and preventable cause of death in the days after a cyclone, when households turn to generators during a power outage.
• Check on vulnerable neighbours and relatives, who may need help clearing debris, accessing medication, or simply confirming they're safe.
• Photograph any damage before you start cleaning up, for your insurance claim.
• Follow local guidance on tap water. Supplies can be contaminated after a storm, and a boil-water notice should be taken seriously until it's officially lifted.

Keeping Pets Safe

Pets need a plan of their own, because many public evacuation shelters don't accept animals. Identify a pet-friendly place to go before the season starts — a relative, a friend further inland, or a shelter that takes pets — and never leave an animal behind if you evacuate. Keep a carrier or lead, at least two weeks of food, water, and any medication alongside your other supplies, and make sure microchip details and ID tags are current. Bring pets indoors early: many animals sense the drop in air pressure before a storm arrives and will try to hide or bolt.