1. Weather Part 2
Lesson 62

2. Activator
article_WMWFQ.pdf?up=
Complete cloud article

3. Reviewing Fronts Cold front: Warm front: Stationary front:
Occluded front:

4. Air Masses
Air whose properties of temperature and moisture content (humidity), at any given altitude
Classification:
polar latitudes P - poleward of 60 degrees north and south
tropical latitudes T - about 25 degrees of the equator
continental c - large land masses--dry
marine m - the oceans----moist

5. Air Masses and Fronts
Air masses can control the weather for a relatively long time period: from a period of days, to months.
Most weather occurs along the periphery of these air masses at boundaries called fronts.

6. Humidity Amount of water vapor in the air
“It’s not the heat, it’s the humidity”
Muggy
Why does it feel hotter on a high humidity day?
Humans are sensitive to changes in humidity, because our skin uses the air around us to get rid of moisture in the form of __________. If the humidity is very high, the air is already saturated with water vapor and our sweat won't evaporate.
What happens on a low humidity day?

7. Air Pressure
AKA barometric pressure

8. Classwork
ntsworksheet.pdf
worksheet_4_relative_humidity.pdf