cold fronts (shown in blue)

Cumulus clouds

cumulus and cumulonimbus clouds

vertical development clouds are common to cold fronts

1. base of a cumulonimbus cloud

2. circulation in cumulonimubus cloud

Cumulonimbus cloud and descending wall cloud

Mammary clouds-rotating air

small hail

hail stones

hail ball

6 inch hail ball

hail storm

Large hail of various sizes.

hail damaged car

circular hail

skylight broken by hail

hail covered road

Large hail compared to a chicken egg.

golf ball size hail

Windshield broken by hail

Hail is common to cumulonimbus clouds.

hail damage

hail damaged cars

tile roof damaged by hail

hail storm

hail covered highway

approaching cold front (cumulonimbus cloud)

Approaching cold front and cumulonimbus cloud.

3. wall cloud forms

4.funnel of the tornado

5.tornado is on the ground

tornado

Tornado damage to houses north of

Madison, Wisconsin

F3 Tornado Damage (winds in excess of 206 m.p.h.)

Tornado damage in Iowa

Only the basement remains from an F4 tornado

Tornado damage in Georgia

EF4 tornado destroyed appartment

tornado

House destroyed by a tornado.

tornado on the ground with debris

tornado on the ground

Tornado on the ground.

cloud to cloud lightning

cloud to ground lightning

cloud to cloud lightning

Cloud to ground lightning

cloud to ground lightning

Night time tornado shown by lightning