The downdraft in an ordinary thunderstorm is created mainly by
a. the melting of snow in the anvil.
b. electrical attraction between the cloud and ground.
c. the release of latent heat as water in the cloud freezes.
d. evaporating raindrops that make the air cold and heavy.
e. upper level wind motions.
Question 2
Thunderstorms that produce tornadoes
a. have very little cloud-to-ground lightning.
b. have updraft velocities that exceed 100 miles per hour.
c. have rotating updrafts.
d. will not produce hail.
e. do not exist.
A Black cat under the snow.
Snow Trillium
Melting ice and snow have far-reaching effects
The Melting Cryosphere
Snow Crab Legs
A melting profile shows the increase in UV absorption versus temperature