Canadian Weather - Windchill

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JMJ

Canadian Winters are nasty and because I learned about windchill in the 70's & 80's - I also learned to associate the danger with the Watts / Square Meter measurement instead of the temperature based version.

So when someone said there was a windchill of 1400, I would shrug.  When it was 2400, I would go outside for short periods, fully closed in my cold weather gear.

When someone says there's a wind chill of -35dC - - - I have difficulty translating that into a threat / risk level.

So, for my reference I am posting this Windchill information.  I may start also develop a Traditional Catholic Windchill chart because a chill has definitely fallen over the Church as they attempt (again) to wipe out the Catholic Faith.

I am still on a blogging holiday but will see how things go as the last time I did this a lot of interesting things happened in the Church :-).

Stay Warm and Stay Catholic!

P^3

 

 Rescure Dynamics Chart

 

Windchill Factor / (Equivalent Temperature)	Effect of Windchill
Under 900 (-3 C)	Conditions comfortable with normal winter clothing.
900 - 1400 (-18 C)	Conditions no longer pleasant for outdoor activities on overcast days. Work and recreation becomes uncomfortable unless properly clothed. Hats, coats and gloves are recommended.
1400 - 1600 (-25 C)	Conditions no longer pleasant for outdoor activities on sunny days. Outdoor work and travel are safe with quality winter clothing.
1600 - 1800 (-30 C)	Frostbite can occur with prolonged exposure. Heavy outer clothing is essential. Your weather office will add the current wind chill to public forecasts at this level.
1800 - 2000 (-35 C)	Frostbite can occur in a few minutes. Multiple layers of clothing become essential.
2000 or more (-40 C)	Unprotected skin can freeze in one minute. Adequate face protection becomes important. Elementary school children require continuous adult supervision while outdoors. Work and travel alone is not advisable.
2200 or more (-45 C)	Adequate face protection becomes mandatory. Work and travel alone is hazardous. Special warm-up breaks are recommended for outside workers.
2300 or more (-50 C)	Outdoor conditions become dangerous. School closures should be considered. Exposed areas freeze in less than one minute for the average person.
2400 or more (-60 C)	Outdoor conditions are dangerous even for short periods of time. All non- emergency outdoor work should cease. Buddy system and observation are mandatory.
2600 or more (-65 C)	Exposed flesh freezes in less than one half minute on average. These are rare wind chill values which will be experienced in some major blizzards. Danger is extreme.
Other factors can affect comfort and your degree of risk including: age, body type, humidity, clothing, level of physical activity, sunshine and even your food intake.

Environment Canada Chart

Wind Chill	Exposure Risk	Health Concerns	What to Do
0 to -9	Low Risk	Slight increase in discomfort	Dress warmly Stay dry
-10 to -27	Moderate Risk	Uncomfortable Risk of hypothermia and frostbite if outside for long periods without adequate protection.	Dress in layers of warm clothing, with an outer layer that is wind-resistant. Wear a hat, mittens or insulated gloves, a scarf and insulated, waterproof footwear. Stay dry. Keep active
-28 to -39	High Risk: exposed skin can freeze in 10 to 30 minutes	High risk of frostnip or frostbite: Check face and extremities for numbness or whiteness. High risk of hypothermia if outside for long periods without adequate clothing or shelter from wind and cold.	Dress in layers of warm clothing, with an outer layer that is wind-resistant Cover exposed skin Wear a hat, mittens or insulated gloves, a scarf, neck tube or face mask and insulated, waterproof footwear Stay dry Keep active
-40 to -47	Very High risk: exposed skin can freeze in 5 to 10 minutesFootnote1	Very high risk of frostbite: Check face and extremities for numbness or whiteness. Very high risk of hypothermia if outside for long periods without adequate clothing or shelter from wind and cold.	Dress in layers of warm clothing, with an outer layer that is wind-resistant. Cover all exposed skin. Wear a hat, mittens or insulated gloves, a scarf, neck tube or face mask and insulated, waterproof footwear. Stay dry Keep active.
-48 to -54	Severe risk: exposed skin can freeze in 2 to 5 minutesFootnote1	Severe risk of frostbite: Check face and extremities frequently for numbness or whiteness. Severe risk of hypothermia if outside for long periods without adequate clothing or shelter from wind and cold.	Be careful. Dress very warmly in layers of clothing, with an outer layer that is wind-resistant. Cover all exposed skin Wear a hat, mittens or insulated gloves, a scarf, neck tube or face mask and insulated, waterproof footwear. Be ready to cut short or cancel outdoor activities. Stay dry. Keep active.
-55 and colder	Extreme risk: exposed skin can freeze in less than 2 minutesFootnote1	DANGER! Outdoor conditions are hazardous.	Stay indoors.

 

References

Rescue Dynamics: Interpreting the Windchill Factor / Equivalent Temperature

Canada.ca: Wind chill and cold weather

Canada.ca: Wind Chill Hazards and What To Do