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Lightning Safety
2016-04-19
Lightning Safety Severe Weather Policy
Lightning Safety / Severe Weather Policy The safety of players, coaches, management and spectators is the primary concern in any weather event that occurs during all matches sanctioned by the CSA.
Lightning Safety / Severe Weather Policy
By understanding and following the information below, the safety of everyone shall be
greatly increased. Ultimately the referee has the final say over delaying or restarting a
match due to weather. Waiting to stop play or not waiting to start play may result in a
serious injury or loss of life. Referees are expected to act responsibly when dealing with
such events during matches they are controlling
When lightning is detected, you can determine the distance of lightning in your area by
counting the number of seconds between the flash and the first sound of the thunder and
dividing by five(5). This will give you the distance in miles from your location. Remember,
if you are in a higher elevation, the lightning can come upon you much quicker and your
reaction time is greatly hindered.
30/30 RULE
When you see lightning, count the time until you hear thunder. If this time is thirty (30)
seconds or less, seek proper shelter. Wait thirty (30) minutes or more after hearing the
last thunder before leaving the shelter. If you can not see the lightning, just hearing the
thunder is a good back up rule.
Additional Information
Please note the following recommendations from Environment Canada:
The existence of blue sky and absence of rain are not protection from lightning.
Lightning can and does strike as far as ten (10) miles away from the rain shaft. It does
not have to be raining for lightning to strike. Many lightning casualties occur in the
beginning, as the storm approaches, because many people ignore initial precursors of
high winds, some rainfall and cloud cover. Generally, the lightning threat diminishes with
time after the last sound of thunder, but may persist for more than thirty (30) minutes.
Lightning can strike ahead of the parent cloud – take action even if the thunderstorm is
not overhead.
Be aware of how close lightning is occurring. The flash-to-bang method is the easiest
and most convenient way to estimate how far away lightning is occurring. Thunder
always accompanies lightning, even though its audible range can be diminished due to
background noise in the immediate environment and its distance from the observer.
Lightning awareness should be increased with the first flash of lightning or the first clap
of thunder, no matter how far away. This activity must be treated as a wake-up call to all.
The most important aspect to monitor is how far away the lightning is occurring, and how
fast the storm is approaching, relative to the distance of a safe shelter.
Recognize that personal observation of lightning may not be sufficient. Additional
weather information may be required to ensure consistency, accuracy and adequate
advance warning. CSA Referees Committee
July 2008
When larger groups are involved, the time needed to properly evacuate an area
increases. As time requirements change, the distance at which lightning is noted and
considered a threat to move into the area must be increased. Extending the range used
to determine threat potential also increases the chance that a localized cell or
thunderstorm may not reach the area giving the impression of a “false alarm”.
Know where the closest “safe structure or location” is to the field or playing area and
know how long it takes to get to that safe structure or location.
Safe structure or location is defined as:
Any building normally occupied or frequently used by people, i.e., a building with
plumbing and / or electrical wiring that acts to electrically ground the structure. Avoid
using shower facilities for safe shelter and do not use the showers or plumbing facilities
during a thunderstorm.
In the absence of a sturdy, frequently inhabited building, any vehicle with a hard metal
roof (not a convertible or golf cart) and rolled-up windows can provide a measure of
safety. A vehicle is certainly better than remaining outdoors. It is not the rubber tires that
make a vehicle a safe shelter, but the hard metal roof which dissipates the lightning
strike around the vehicle. Do not touch the sides of any vehicle!
If no safe structure or location is within a reasonable distance, find a thick grove of small
trees surrounded by taller trees or a dry ditch. Assume a crouched position on the
ground with only the balls of the feet touching the ground, wrap your arms around your
knees and lower your head. Minimize contact with the ground because lightning current
often enters a victim through the ground rather than by a direct overhead strike. Minimize
your body’s surface area and the ground! Do not lie flat! If unable to reach safe shelter,
stay away from the tallest trees or objects such as light poles or flag poles), metal
objects (such as fences or bleachers), individual trees, standing pools of water, and
open fields. Avoid being the highest object in a field. Do not take shelter under a single,
tall tree.
Avoid using the telephone, except in emergency situations. People have been struck by
lightning while using a land-line telephone. A cellular phone or a portable remote phone
is a safe alternative to land-line phones, if the person and the antenna are located within
a safe structure or location, and if all other precautions are followed.
When considering resumption of any athletics activity, it is recommended that everyone
should ideally wait at least thirty (30) minutes after the last flash of lightning or sound of
thunder before returning to the field.
People who have been struck by lightning do not carry an electrical charge. Therefore,
cardiopulmonary resuscitation (CPR) is safe for the responder. If possible, an injured
person should be moved to a safer location before starting CPR. Lightning-strike victims
who show signs of cardiac or respiratory arrest need emergency help quickly. Prompt,
aggressive CPR has been highly effective for the survival of victims of lightning strikes.
For additional information the following website is helpful:
www.weatheroffice.gc.ca
By understanding and following the information below, the safety of everyone shall be
greatly increased. Ultimately the referee has the final say over delaying or restarting a
match due to weather. Waiting to stop play or not waiting to start play may result in a
serious injury or loss of life. Referees are expected to act responsibly when dealing with
such events during matches they are controlling
When lightning is detected, you can determine the distance of lightning in your area by
counting the number of seconds between the flash and the first sound of the thunder and
dividing by five(5). This will give you the distance in miles from your location. Remember,
if you are in a higher elevation, the lightning can come upon you much quicker and your
reaction time is greatly hindered.
30/30 RULE
When you see lightning, count the time until you hear thunder. If this time is thirty (30)
seconds or less, seek proper shelter. Wait thirty (30) minutes or more after hearing the
last thunder before leaving the shelter. If you can not see the lightning, just hearing the
thunder is a good back up rule.
Additional Information
Please note the following recommendations from Environment Canada:
The existence of blue sky and absence of rain are not protection from lightning.
Lightning can and does strike as far as ten (10) miles away from the rain shaft. It does
not have to be raining for lightning to strike. Many lightning casualties occur in the
beginning, as the storm approaches, because many people ignore initial precursors of
high winds, some rainfall and cloud cover. Generally, the lightning threat diminishes with
time after the last sound of thunder, but may persist for more than thirty (30) minutes.
Lightning can strike ahead of the parent cloud – take action even if the thunderstorm is
not overhead.
Be aware of how close lightning is occurring. The flash-to-bang method is the easiest
and most convenient way to estimate how far away lightning is occurring. Thunder
always accompanies lightning, even though its audible range can be diminished due to
background noise in the immediate environment and its distance from the observer.
Lightning awareness should be increased with the first flash of lightning or the first clap
of thunder, no matter how far away. This activity must be treated as a wake-up call to all.
The most important aspect to monitor is how far away the lightning is occurring, and how
fast the storm is approaching, relative to the distance of a safe shelter.
Recognize that personal observation of lightning may not be sufficient. Additional
weather information may be required to ensure consistency, accuracy and adequate
advance warning. CSA Referees Committee
July 2008
When larger groups are involved, the time needed to properly evacuate an area
increases. As time requirements change, the distance at which lightning is noted and
considered a threat to move into the area must be increased. Extending the range used
to determine threat potential also increases the chance that a localized cell or
thunderstorm may not reach the area giving the impression of a “false alarm”.
Know where the closest “safe structure or location” is to the field or playing area and
know how long it takes to get to that safe structure or location.
Safe structure or location is defined as:
Any building normally occupied or frequently used by people, i.e., a building with
plumbing and / or electrical wiring that acts to electrically ground the structure. Avoid
using shower facilities for safe shelter and do not use the showers or plumbing facilities
during a thunderstorm.
In the absence of a sturdy, frequently inhabited building, any vehicle with a hard metal
roof (not a convertible or golf cart) and rolled-up windows can provide a measure of
safety. A vehicle is certainly better than remaining outdoors. It is not the rubber tires that
make a vehicle a safe shelter, but the hard metal roof which dissipates the lightning
strike around the vehicle. Do not touch the sides of any vehicle!
If no safe structure or location is within a reasonable distance, find a thick grove of small
trees surrounded by taller trees or a dry ditch. Assume a crouched position on the
ground with only the balls of the feet touching the ground, wrap your arms around your
knees and lower your head. Minimize contact with the ground because lightning current
often enters a victim through the ground rather than by a direct overhead strike. Minimize
your body’s surface area and the ground! Do not lie flat! If unable to reach safe shelter,
stay away from the tallest trees or objects such as light poles or flag poles), metal
objects (such as fences or bleachers), individual trees, standing pools of water, and
open fields. Avoid being the highest object in a field. Do not take shelter under a single,
tall tree.
Avoid using the telephone, except in emergency situations. People have been struck by
lightning while using a land-line telephone. A cellular phone or a portable remote phone
is a safe alternative to land-line phones, if the person and the antenna are located within
a safe structure or location, and if all other precautions are followed.
When considering resumption of any athletics activity, it is recommended that everyone
should ideally wait at least thirty (30) minutes after the last flash of lightning or sound of
thunder before returning to the field.
People who have been struck by lightning do not carry an electrical charge. Therefore,
cardiopulmonary resuscitation (CPR) is safe for the responder. If possible, an injured
person should be moved to a safer location before starting CPR. Lightning-strike victims
who show signs of cardiac or respiratory arrest need emergency help quickly. Prompt,
aggressive CPR has been highly effective for the survival of victims of lightning strikes.
For additional information the following website is helpful:
www.weatheroffice.gc.ca