Welcome to November. In most parts of
North America fall is well under way.
I
guess it depends on your location as to how serious Mother Nature rolls out
fall.Here on the West coast, fall is when the leaves turn colour and drop onto the road/riding surface... And the rains rollin’ off the Pacific Ocean. For that matter that also describes most of the West coast winter, other than the few days in mid-January when we get about five centimetres of wet snow that brings the area to a grinding halt.
The rest of CANADA, that is, from Hope
BC East and North gets snow and more snow and cold and wind. Did I mention
snow?
Hypothermia becomes a very real concern,
along with frost bite to extremities, or anything exposed to the elements.
Cycling is going out and having a great
ride, being comfortable in the elements, and doing it safely. Be it clear and
cool, or clear and cold.
I realize that temperature is just a
number, but it’s a number that has a very direct bearing on what we do, where
we do it, how long we do it. What we do while we are there, and if we even go
out for what we had planned.
Layering has been the by words for
winter activities since we all were little and we were bundled in snow suits to
go outside. Mom wasn’t wrong, even though we felt we knew better.
Cold and wind can be the unseen enemy,
which if you aren’t prepared and able to see the signs, can cause more
problems.
Winter cycling can be great but without
taking the outside environment and conditions, at the beginning, during and
afterward into account, you could be putting your life in danger.
Please beware when riding during the
colder months. Taking that extra time to make sure you are prepared will assist
in somewhat controlling the conditions and make the difference between a cold
miserable ride and a comfortable great ride.It can be as simple as mind over matter, if you don’t mind the conditions and can handle them, then it doesn’t really matter.
I have attached excellent information
from the Environment CANADA web site.
They have detailed the how’s and whys
and why not’s far better than I could. They are experts in the field of cold. Please take a look at their web site for more information.
I am of the opinion that functional and
warm is better than looking good. Safety
comes in many aspects, knowing what to wear, how to layer, in what order, and
being seen are what is going to allow you to make it through and survive.
From the
Environment CANADA web site, www.weatheroffice.gc.ca
What is Wind Chill?
Anyone who has
ever waited at a bus stop, ridden a bike in the winter or taken a walk on a
blustery winter day knows that you feel colder when the wind blows. This
cooling sensation that is caused by the combined effect of temperature and
wind, is what is known as wind chill.
On a calm day,
our bodies insulate us somewhat from the outside temperature by warming up a
thin layer of air close to our skin, known as the boundary layer. When the wind
blows, it takes this protective layer away, exposing our skin to the outside
air. It takes energy for our bodies to warm up a new layer and, if each layer
keeps getting blown away, our skin temperature will drop and we will feel
colder.
Wind also makes
you feel colder by evaporating any moisture on your skin, a process that draws
more heat away from the body. Studies show that when skin is wet, it loses heat
much faster than when it is dry
How does Wind Chill affect you?
Living in a
cold country can be hazardous to your health. Each year in Canada, more than 80
people die from over-exposure to the cold, and many more suffer injuries
resulting from hypothermia and frostbite. Wind chill can play a major role in
such health hazards because it speeds up the rate at which your body loses
heat.
How much heat
you lose depends not only on the cooling effects of the cold and the wind
chill, but on other factors. Good quality clothing with high insulating
properties traps air, creating a thicker boundary layer around the body which keeps
in the heat. Wet clothing and footwear lose their insulating properties,
resulting in body-heat loss nearly equal to that of exposed skin. Your body
type also determines how quickly you lose heat; people with a tall, slim build
become cold much faster than those that are shorter and heavier.
We can also
gain heat by increasing our metabolism or soaking up the sun. Physical
activity, such as walking or skiing, increases our metabolism – which generates
more body heat. Age and physical condition also play a part. Elderly people and
children have less muscle mass and as a result, generate less body heat.
Sunshine, even on a cold winter day, can also make a difference. Bright
sunshine can make you feel as much as 10 degrees warmer.
Over time, our
bodies can also adapt to the cold. People who live in a cold climate are often
able to withstand cold better than those from warmer climates.
Beating the chill
The best way to
avoid the hazards
of wind chill is to check
the weather forecast before going outside, and to be prepared by dressing
warmly. As a guideline, keep in mind that the risk of frostbite increases
rapidly when wind chill values go below -27.
A simple way to
avoid wind chill is to get out of the wind. Environment Canada's wind
chill forecasts are based on the wind you would experience on open ground;
taking shelter from the wind can therefore reduce or even eliminate the wind
chill factor.
A recent survey
indicated that 82 per cent of Canadians use wind chill information to decide
how to dress before going outside in the winter. Many groups and organizations
also use the wind chill index to regulate their outdoor activities.
Schools use
wind chill information to decide whether it is safe for children to go outdoors
at recess; hockey clubs cancel outdoor practices when the wind chill is too cold;
people who work outside for a living, such as construction workers and ski-lift
operators, are required to take indoor breaks to warm up when the wind chill is
very cold.
Seven steps to cold weather safety
1.) Listen to the weather forecast
- Check the
Environment Canada weather forecast before going out in the winter.
- Listen for
a wind chill warning. Wind chill warnings, based on local climate, are
issued when significant wind chills are expected to occur.
Environment
Canada’s weather forecasts are available through radio and TV broadcasts,
Environment Canada’s Weatheradio network, and online at www.weatheroffice.gc.ca.
2.) Plan ahead
- Develop a
cold weather safety plan in advance to ensure that safety concerns are
addressed when it’s very cold, or when the wind chill is significant. For
example, schools could hold recess indoors, outside workers could schedule
warm-up breaks, and those involved in winter recreation could reduce the
amount of time they spend outdoors.
3.) Dress warmly
- Dress in
layers, with a wind resistant outer layer.
- When it is
cold, wear a hat (a large portion of body heat is lost from the head),
mittens or insulated gloves. You should also have something to keep your
face warm, such as a scarf, neck tube or facemask.
- Wear warm
and waterproof footwear. When it is very cold, or when the wind chill is
significant, cover as much exposed skin as possible. Your body’s
extremities, such as the ears, nose, fingers and toes lose heat the
fastest.
4.) Seek shelter
- When the
wind chill is significant, get out of the wind and limit the time you
spend outside.
5.) Stay dry
- Wet
clothing chills the body rapidly.
- Remove
outer layers of clothing or open your coat if you are sweating.
6.) Keep active
- Walking or
running will help warm you by generating body heat.
7.) Be aware
- Watch for
signs of frostnip, frostbite and hypothermia.
- Some
people are more susceptible to the cold, particularly children, the
elderly and those with circulation problems.
- The use of
alcohol, tobacco and certain medications will increase your susceptibility
to cold.
Cold injuries
Exposure to the
cold can be hazardous or even life-threatening. Your body's extremities, such
as the ears, nose, fingers and toes, lose heat the fastest. Exposed skin
may freeze, causing frostnip or frostbite. In extreme conditions or after
prolonged exposure to the cold, the body core can also lose heat, resulting in
hypothermia.
Hypothermia
- Being cold
over a prolonged period of time can cause a drop in body temperature
(below the normal 37°C).
- Shivering,
confusion and loss of muscular control (e.g., difficulty walking) can
occur.
- It can
progress to a life-threatening condition where shivering stops or the
person loses consciousness. Cardiac arrest may occur.
What to do:
· Get medical
attention immediately.
· Lay the person
down and avoid rough handling, particularly if the person is unconscious.
· Get the person
indoors.
· Gently remove
wet clothing.
· Warm the person
gradually and slowly, using available sources of heat.
Frostnip
- A mild
form of frostbite, where only the skin freezes.
- Skin
appears yellowish or white, but feels soft to the touch.
- Painful
tingling or burning sensation.
What to do:
· Do not
rub or massage the area.
· Warm the area gradually – use body heat (a warm hand) or warm water. Avoid direct heat which can burn the skin.
· Once the
affected area is warm, do not re-expose it to the cold.
Frostbite
- A more
severe condition, where both the skin and the underlying tissue (fat,
muscle, bone) are frozen.
- Skin
appears white and waxy and is hard to the touch.
- No
sensation – the area is numb.
What to do:
· Frostbite can
be serious, and can result in amputation. Get medical help!
· Do not
rub or massage the area.
· Do not
warm the area until you can ensure it will stay warm.
· Warm the area
gradually; use body heat, or warm water (40°C to 42°C).
Avoid direct heat which can burn the skin.
Try this neat
experiment to better understand wind chill
Turn on a fan
and stand in front of it. You will feel colder because of the wind cooling your
skin, but the temperature in the room has not changed. You cannot make the room
any colder, no matter how high you turn up the fan. Just like outside, no
matter how strong the wind blows, the temperature of the air outside does not
change.
Now dab some
water on your skin and stand in front of the fan again. The wet skin should
feel much colder. This demonstrates how important it is to stay dry when
outdoors in cold and windy conditions.
Where is the
coldest wind chill in Canada?
Wind chills below -70 have been recorded in northern
communities in Canada. On January 13, 1975 at Kugaaruk, Nunavut, the air
temperature was -51°C and the winds were 56 km/h, producing a bone-chilling
wind chill of -78!
Special thanks to the folks at Environment CANADA for the
above information.
Thanks for Stopping By
Safe Ride
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