Transcript V. Winter Storms

Winter Storms
Introduction
A. Snow falls when humid air cools to
below 0° Celsius (32° Fahrenheit)
B1. Heavy snow can make roads impassible
so traffic cannot get through
B2. Power lines can be knocked down
causing power outages
Lake-effect snow
C. Heavy pockets of snow that form on the
east side of the Great Lakes
D. Cities of the southeast sides of the Great
Lakes are often
impacted
E. Formation
1. The cold dry air passes over the lakes and
picks up moisture and heat.
2. As the air moves over the colder land, the
air cools, the water condenses, creates
clouds.
3. The cold air cannot
hold the moisture
and it falls out in
the form of snow.
F. Snowstorm Safety
1. Seek shelter from the wind and cold
temperatures
2. Avoid getting wet.
3. Cover exposed parts of your body
4. Frostbite- condition where skin body tissue is
damaged due to extreme cold
5. Hypothermia- body temperature drops below
the required temperature for normal body
functions
G. Additional Information
Blizzard Conditions
1. 35 mph sustained winds
2. Heavy snow or blowing snow- limits
visibility
3. 3 hours
4. Low temperatures and much lower wind
chills