Title: Lightning Safety Training for Athletic Officials
1Lightning Safety Training for
Athletic Officials
Photo from Hackensack Fire Dept.
- National Weather Service Jacksonville, FL
2Overview
- Lightning Statistics
- Lightning Physics and Terms
- The Consequences of a Strike
- Threats on the Field
- Safety Actions
- 30-30 Rule
- Safe Unsafe Locations
- Action Plans
- First Aid for Strike Victims
- Resources
3Lightning is the Nations Underrated Killer
Image c/o NLSI
- Causes more U.S. deaths than tornadoes
hurricanes combined - The 1 weather killer in Florida
- Annual U.S. Strikes Kill 100 and Injure 1,000
- Causes 5 billion/year in economic damage
4Outdoor Athletics Put Children and Spectators at
Great Risk
Open Fields, 27
Unreported, 40
Under Trees, 14
Water Related, 8
Golf, 5
Radio, Machinery, 3
Telephone, Data From NLSI
- The 1 location of reported lightning deaths is
on open fields, which includes athletic fields.
- The 3 location for lightning deaths is water
related, which includes swimming pools.
5Possible Resistance when Promoting Lightning
Safety
Some may say Lightning is not an important
hazard. FALSE! Truth It is second only to
floods as the leading cause of weather related
deaths in the U.S. Safety plans are developed
for tornadoes and hurricanes, but lightning is a
more common and deadly hazard in the U.S. There
is nothing you can do about lightning.
FALSE! Truth Almost all lightning casualties
are preventable. If thunder is heard, go indoors
immediately. Most deaths occur before and after
a storm. Litigation Fear It is better to do
nothing, than to do something and fail. Truth
Failure to take prudent and protective actions is
chargeable negligence which could warrant a law
suit.
From Roeder, 45th Wx Squadron Patrick AFB
6Electrical Current
- When the negative charge in the cloud becomes
great enough, it seeks an easy path to the
positively charged ground below. - The current looks for a good conductor of
electricity, or a tall structure anchored to the
ground (such as a tree or a tall building). The
negative charge sends out a feeler, called a
stepped leader, which is a series of invisible
steps of negative charges. - As the stepped leader nears the ground, a
positive streamer reaches up for it. Only then,
once this channel is made, does the visible
lightning happen. A return stroke runs from the
ground to the clouds in a spectacular flash.
From NASA
7Electrical Current Disperses
- Electrical current from a strike will travel
through the ground and other conductive mediums. - Wet fields will conduct electrical current from
a strike. - The charge will electrocute life within its
path.
8(No Transcript)
9Lightning Can Be Hot Enough To Fuse Sand Into
Glass Called Fulgurite
Imagine What It Can Do To Your Body!!!
10When Thunder RoarsGo Indoors! The Flash-to-Bang
Method
- Thunder is a sound wave created by a shock wave
produced by the hot bolt. - Flash-to-Bang Count the number of seconds
between seeing the lightning and hearing the
thunder then divide by 5. - The quotient is approximately how far the
storm is from you (in miles).
If you hear thunder, you are at risk of being
struck by lightning!
The sound of thunder travels 1 mi in 5 sec
11Bolt from the Blue
Lightning can emanate from the upper level cloud
of the storm and strike the ground well away from
where it is raining, even where there are no
clouds.
Ground strikes are recorded up to 60 miles away
from the clouds that produce them (rare).
12(No Transcript)
13Heat Lightning
- Heat lightning is lightning from a distant
thunderstorm. - Thunder is not heard.
- Not an immediate threat of lightning striking
your immediate area, but be aware of the
direction the storm is traveling.
14Strikes to Humans
- 84 of victims are male
- Months of most instances Jun 21, Jul 30, Aug
22 - Time of Day of most instances 2-6 pm
- 20 of victims are struck dead the other 80
often suffer life-long debilitating neurological
problems - Lightning strikes are not the same as electrical
shocks the strike burns body tissue from the
entry point (typically the head) through the exit
point. - Strike survivors may chronically experience all
or some of the following coma, seizures, brain
damage, cardiac dysfunction, deafness, severe
ocular damage, amnesia, sleep disorders, anxiety
disorders, chronic pain.
Victims Do Not Carry Electrical Charge!
Administer CPR as soon as possible!
15Some Concerns to Address with a
Lightning Safety Action Plan
- How will you communicate lightning alerts to a
large and/or noisy crowd? - Will the audience know how to react and where to
go when they hear the lightning alert? - Where will everyone (athletes, officials,
coaching staff, spectators, etc.) go at large
outdoor events? - Will there be adequate safe shelter for everyone?
16Outdoor Events Lightning A Deadly Combo
- Outdoor events like athletic games put everyone
near and on the field at risk of being struck by
lightning. - Many stadium facilities have metal bleachers and
long metal fences which may be excellent
conductors of an electric charge. - Wet fields will conduct an electrical strike.
Antennas
Field Lights
Fence/Backstop
Trees
Bleachers
Lightning Targets
Photo c/o City of Missouri, TX
17Official Safety Recommendation The 30-30 Rule
- Use the 30-30 Rule to determine if lightning
is a threat. - The 30-30 Rule If the number of seconds
between seeing the lightning flash and hearing
thunder is 30 seconds or less, then seek shelter
immediately. Your lightning safety plan should
be executed and those vulnerable to a strike
should be evacuated to safety. - If you cannot see the lightning but hear
thunder, then you are close enough to be struck
by lightning. Execute your lightning safety plan
immediately. - Wait at least 30 minutes after the last rumble
of thunder before leaving the shelter area.
The 30-30 Rules is not too conservative. Most
lightning strikes to humans occur before and
after the storm.
From Roeder, 45th Wx Squadron Patrick AFB
18Shelter Areas
Seek Proper Shelter
- No place outside near a storm is safe from
lightning. - Buildings are much safer than vehicles.
- Vehicles offer some safety.
- If caught outside in a storm, the last resort is
to get low to the ground.
Substantial Building with wiring and plumbing
From Roeder, 45th Wx Squadron Patrick AFB
19Unsafe Shelter Areas
- All outdoor metal objects like flag poles,
fences, gates, mast light poles, metal bleachers,
picnic shelters, dug outs machinery. - Avoid trees, water, open fields, high ground.
AFE
Daily Mail
AFE
Klein Oak H.S.
20Safe Shelter Areas
- Substantial Buildings (a lot of wiring and
plumbing) away from windows, plugged-in
appliances and out of bathrooms and kitchens. - The low ground. Seek cover in areas of bushes
(not under trees).
NLSI
Photo Michael Thompson
21Indoor Lightning Safety
- Avoid conducting paths to the outside, which
include the following - Do not use corded telephones
- Do not use wired electrical appliances
- TVs, VCRs, And TV Cables
- Computers
- Light Switches
- Electrical Outlets
- Do not use plumbing
- Showers
- Sinks
- Rest Rooms
- Pools (indoors too)
- Stay away from windows and doors
- Interior rooms are safer
22First Aid for Strike Victims
- Lightning Strike Victims DO NOT carry
electrical current after they are struck! You
will not be shocked nor electrocuted if you touch
them. - 90 of strike victims will survive. Fatal
strikes cause cardiac arrest, thus the sooner CPR
can be performed on the victim the better chance
for their survival. - Ensure your own safety first before you attempt
to help the victim. Make sure that there are no
live wires. - Call 911 and administer CPR immediately.
23Lightning Alerts
- The National Weather Service (NWS) does NOT
issue Severe Thunderstorm Warnings for Lightning
(only for large hail and damaging winds) - Florida NWS offices monitor lightning frequency
in storms and will issue a Special Weather
Statement for storms that produce excessive
lightning. You will hear this statement on NOAA
Wx Radio or can read it on the internet. - Lightning Detectors can serve as a secondary
means of alerting you to the possibility of
lightning. The first method should be visually
scanning the sky and monitoring the forecast. - There are some lightning notification services
available for a fee. These services use the
National Lightning Detection Network and will
send you an email, page or fax to alarm you when
lightning has been detected near your location.
24Lightning Safety Plan Recommendations
- Designate a responsible person as the weather
safety lookout. This person will monitor the
weather. - We suggest access to a NOAA Weather Radio and/or
access to the Weather Channel. - 30-30 Rule When thunder and/or lightning are
first observed, use the Flash-to-Bang method to
determine about how far away the storm is from
you. A Flash-to-Bang count of 30 seconds would
approximate the distance of the storm as being 6
miles away, and it is recommended to evacuate the
outdoor facility immediately when this criteria
is met. Spectators should be evacuated to safe,
indoor shelter. - Outdoor activities should be suspended until 30
minutes after the last rumble of thunder is
heard. - Promote Lightning Safety Education!
If you can see it, flee it.
If you can hear it, clear it.
25Lightning and Pessimism
From Roeder, 45th Wx Squadron Patrick AFB
26Resources
- National Weather Service Lightning Safety
www.lightningsafety.noaa.gov - National Lightning Safety Institute
www.lightningsafety.com - NLSI Personal Lightning Safety Resources
- www.lightningsafety.com/nlsi_pls.html
- William Roeder, Lightning Safety for Schools
Presentation - NWS Jacksonville, Florida
- www.weather.gov/jax