Home > Severe Weather > WeatherSafe > Thunderstorms > Before The Storm
Thunderstorms: Before The Storm
Severe Weather Safety and Advice From SkyWarn UK
Thunderstorms and lightning are one of natures most dazzling and captivating weather phenomenon. As the dark storm clouds gather, and lightning streaks across the sky, it can be fascinating to watch. However, thunderstorms can be killers. On average, some 30 to 60 people are struck by lightning each year in the UK. Of these, between 3 and 6 will result in death.
Lightning is not the only hazard associated with thunderstorms. Large hailstones, strong winds, and flooding rains are also a real risk. Additionally, some thunderstorms can produce tornadoes, although these are relatively rare in the UK.
What Is A Severe Thunderstorm
SkyWarn UK classifies any thunderstorm with one or more of the following as being a severe thunderstorm:
- Hailstones over 20 mm diameter
- Wind gusts over 55 mph
- Tornadoes or funnel clouds of any intenisty
Severe thunderstorms DO occur in the UK.
Stay Alert
Thunderstorms can occur at anytime of the year, although they are most common in the summer months.
- Warm, humid conditions are usually the most favourable conditions for thunderstorm development
- Most deaths and injuries associated with thunderstorms occur to those caught outdoors
- Although heavy rain can occur with thunderstorms, it is important to remember that lightning can reach far from the main rain area
- Any thunderstorm can be dangerous, as any thunderstorm can produce lightning, hail, and even tornadoes.
- If you can hear thunder, you are close enough to be struck by lightning.
When Thunderstorms Are Expected
If you are outside in an area where thunderstorms are forecast or are about to happen, follow these safety precautions:
- Postpone outdoor activites. If you are outside then go indoors.
- Seek shelter indoors - preferably inside a sturdy building. Cars provide some shelter too, and are safer than being outside. However, convertible cars (soft tops) should be avoided.
- Remember the '30-30' rule: If you are outdoors and see lightning, if you can't count to 30 before hearing thunder then go inside immediately. Remain indoors for at least 30 minutes after hearing the last clap of thunder.
Family Preparedness Checklist
- Remove dead or rotting trees that could potentially hit your property if struck by lightning
- Move inside the house or garage and loose outdoor items that could be blown around by strong winds
- Unplug electrical appliances
- Make sure important documents, such as insurance certificates, are stored in a safe place.
- Enusre your insurance provides adequate cover
- Monitor your usual weather source for the latest alerts. Consider subscribing to the Met Office feeds.
- Take care of pets. Dogs and other animals that may be leashed to a tree, or near a tree, ar at high risk of being struck by lightning.
|
|
