Lightning Safety

From NOAA, National Weather Service
http://www.lightningsafety.noaa.gov/
http://www.lightningsafety.noaa.gov/outdoors.htm

Please take a moment to read this safety sharing for helpful reminders

about lightning safety measures. Then, share the information with your

family and friends so that all may be better prepared to safely cope with

the severe weather we've been having recently.
 

Lightning Safety Outdoors

Each year, about 400 children and adults in the U.S. are struck by

lightning while working outside, at sports events, on the beach, mountain

climbing, mowing the lawn or during other outdoor activities. About 67

people are killed and several hundred more are left to cope with permanent

disabilities. Many of these tragedies can be avoided. Finishing the game,

getting a tan, or completing a work shift aren't worth death or crippling

injury.

- All thunderstorms produce lightning and are dangerous. Lightning kills

more people each year than tornadoes.

- Lightning often strikes as far as 10 miles away from any rainfall. Many

deaths from lightning occur ahead of the storm because people try and

wait to the last minute before seeking shelter.

- You are in danger from lightning if you can hear thunder. If you can

hear thunder, lightning is close enough that it could strike your

location at any moment.

- Lightning injuries can lead to permanent disabilities or death. On

average, 10% of strike victims die; 70% of survivors suffer serious long

term effects.

- Look for dark cloud bases and increasing wind. Every flash of lightning

is dangerous, even the first. Head to safety before that first flash. If

you hear thunder, head to safety!

- Blue Skies and Lightning. Lightning can travel sideways for up to 10

miles. Even when the sky looks blue and clear, be cautious. If you hear

thunder, take cover. At least 10% of lightning occurs without visible

clouds overhead in the sky.

The Single Most Dangerous Place

Outdoors is the most dangerous place to be during a lightning storm. When

lightning is seen or thunder is heard, or when dark clouds are observed,

quickly move indoors or into a hard-topped vehicle and remain there until

well after the lightning storm ends. Listen to forecasts and warnings

through NOAA Weather Radio or your local TV and radio stations. If

lightning is forecast, plan an alternate activity or know where you can

take cover quickly.

The U.S. lightning season is summer but lightning can strike year round!

The Fourth of July is historically one of the most deadly times of the year

for lightning. In summer, more people are outside, on the beach, golf

course, mountains or ball fields. Outdoor jobs such as construction and

agriculture, and outdoor chores such as lawn mowing or house painting are

at their peak, putting those involved in danger.

Safety Rules

1. Postpone activities promptly. Don't wait for rain. Many people take

shelter from the rain, but most people struck by lightning are not in

the rain! Go quickly inside a completely enclosed building, not a

carport, open garage or covered patio. If no enclosed building is

convenient, get inside a hard-topped all-metal vehicle. A cave is a good

option outside but move as far as possible from the cave entrance.

2. Be the lowest point. Lightning hits the tallest object. In the

mountains if you are above tree line, you ARE the highest object around.

Quickly get below tree line and get into a grove of small trees. Don't

be the second tallest object during a lightning storm! Crouch down if

you are in an exposed area.

3. Keep an eye on the sky. Look for darkening skies, flashes of lightning,

or increasing wind, which may be signs of an approaching thunderstorm.

4. Listen for the sound of thunder. If you can hear thunder, go to a safe

shelter immediately.

5. If you see or hear a thunderstorm coming or your hair stands on end,

immediately suspend your game or practice and instruct everyone to go

inside a sturdy building or car. Sturdy buildings are the safest place

to be. Avoid sheds, picnic shelters, baseball dugouts, and bleachers. If

no sturdy building is nearby, a hard-top vehicle with windows closed

will offer some protection. The steel frame of the vehicle provides some

protection if you are not touching metal.

6. Listen to NOAA Weather Radio. Coaches and other leaders should listen

for a tone-alert feature during practice sessions and games.

7. If you can't get to a shelter, stay away from trees. If there is no

shelter, crouch in the open, keeping twice as far away from a tree as it

is tall.

8. Avoid leaning against vehicles. Get off bicycles and motorcycles.

9. Get out of the water. It's a great conductor of electricity. Stay off

the beach and out of small boats or canoes. If caught in a boat, crouch

down in the center of the boat away from metal hardware. Swimming,

wading, snorkeling and scuba diving are NOT safe. Lightning can strike

the water and travel some distance beneath and away from its point of

contact. Don't stand in puddles of water, even if wearing rubber boots.

10. Avoid metal! Drop metal backpacks, stay away from clothes lines,

fences, exposed sheds and electrically conductive elevated objects.

Don't hold on to metal items such golf clubs, fishing rods, tennis

rackets or tools. Large metal objects can conduct lightning. Small metal

objects can cause burns.

11. Move away from a group of people. Stay several yards away from other

people. Don't share a bleacher bench or huddle in a group.

What to do if someone is struck by lightning:

- Call for help. Call 9-1-1 or your local ambulance service. Get medical

attention as quickly as possible.

- Give first aid. If the victim has stopped breathing, begin rescue

breathing. If the heart has stopped beating, a trained person should

give CPR. If the person has a pulse and is breathing, address any other

injuries.

- Check for burns in two places. The injured person has received an

electric shock and may be burned. Being struck by lightning can also

cause nervous system damage, broken bones, and loss of hearing or

eyesight. People struck by lightning carry no electrical charge that can

shock other people. You can examine them without risk.

Stay Informed About the Storm

Listen to NOAA Weather Radio or local media for the latest severe

thunderstorm WATCHES and WARNINGS. Severe thunderstorms are those storms

with winds in excess of 58 mph or hail larger than 3/4 inches in diameter.

When conditions are favorable for severe weather to develop, a severe

thunderstorm WATCH is issued.

Weather Service personnel use information from weather radar, satellite,

lightning detection, spotters, and other sources to issue severe

thunderstorm WARNINGS for areas where severe weather is imminent. Remember,

however, that ALL thunderstorms produce deadly lightning.

NOAA, National Weather Service