Climate regions of North America

Mean winter and summer temperatures in North America

Annual precipitation in North America

Summer and winter temperatures over continents and oceans

Average annual number of lightning firest reported in forested areas

"Back to the wind, high pressure on the right"

Life cycle of a frontal wave

Classification of fronts

Winds in warm and cold fronts

Slow- and fast-moving cold fronts

Stationary front winds

Stable and unstable warm fronts

Wind shift accompanying the passage of an occluded front

How sleet, snow, and rain are formed

Lifting:  Thermal, orographic, and frontal

Visible indicators of stable and unstable atmospheres

Stability in unsaturated air

The adiabatic chart

How thunderstorms are triggered

Stages of a thunderstorm

Typical temperature and relative humidity traces

Radiation effects on different sites

Upslope and downslope winds

Inversion created by canyons and valleys

Relative humidity and dewpoint table

How logs dry and take on moisture