Preparing for Severe Weather

Severe weather covers a range of conditions, including intense thunderstorms, strong winds, heavy rainfall, hail and, in some regions, extreme heat. While the specific risks vary by location and season, some general principles help reduce risk regardless of the type of event.

Recognising the signs

Many severe weather events do not arrive without warning. Rapidly darkening skies, a sudden drop in temperature, a noticeable shift in wind direction, or a quick build up of tall, dense cloud can all signal that conditions are changing quickly. Official forecasts and warnings remain the most reliable source of advance notice, but being able to recognise these signs can help when conditions shift faster than expected.

Thunderstorms and lightning

Thunderstorms can develop quickly, particularly during the warmer months in regions with a summer rainfall pattern. Lightning is a serious risk during these events. A widely used guideline is that if the time between seeing lightning and hearing the following thunder is thirty seconds or less, the storm is close enough that it is sensible to seek solid shelter. Open fields, isolated trees, and elevated or metal structures should be avoided during active lightning.

Strong wind

Strong, gusty wind can bring down loose branches, signage and other unsecured objects, and can make driving, particularly in high sided vehicles, considerably more difficult. Securing loose items outdoors ahead of an expected windy spell, and allowing extra following distance and reduced speed while driving in strong crosswinds, both reduce risk meaningfully.

Heavy rainfall and flooding

Heavy, sustained rainfall can lead to localised flooding, particularly in low lying areas, near rivers, or where drainage is limited. Fast flowing water, even at a shallow depth, can be more dangerous than it appears, both for pedestrians and for vehicles attempting to cross a flooded road. Where a flood warning or advisory has been issued, avoiding unnecessary travel through affected areas is generally the safest approach.

Hail

Hail can form rapidly within strong thunderstorms and can cause damage to vehicles, roofing and crops within a short period. Where hail is forecast or already occurring, moving vehicles under cover and staying indoors, away from windows, reduces the risk of injury or damage.

Extreme heat

During periods of unusually high temperature, the main risks relate to dehydration and heat related illness, particularly for young children, older adults, and anyone engaged in physical activity outdoors. Staying hydrated, limiting strenuous outdoor activity during the hottest part of the day, and keeping indoor spaces as cool as practical all help manage this risk.

General preparation habits

Check forecasts regularly during seasons known for severe weather in a given region, rather than only when conditions already look threatening.
Keep basic supplies, such as a torch, spare batteries and a first aid kit, easily accessible in case of power disruption during a storm.
Know the safest, most solid shelter options at home, at work, and at any location visited regularly.
Pay attention to official warnings and advisories issued for the specific area, since conditions can vary significantly even within a single region.

None of these measures guarantee safety during every possible event, but together they form a sensible, practical baseline for reducing risk when severe weather develops.