Download Forms of Severe Weather

Forms of Severe Weather
Thunderstorms
• Occur when warm, moist
air rises quickly
• Forms cumulonimbus
clouds
• Drops collect, fall as rain,
causing downdrafts of air
(heavy winds) as well
Lightning
• Rapid rising of air causes
clouds to build up charge
• When charge jumps from
cloud to cloud or from
cloud to ground, it makes a
lightning bolt
• Heats air to around
30,000°C (hotter than
the sun)
• Quickly expanding air
is heard as thunder
Thunderstorm Videos
• https://www.youtube.com/watch?v=jM8h60S1GsM
• https://www.youtube.com/watch?v=LF1WhJJTDDY
Tornadoes
• Violent, whirling wind
that moves in a narrow
path
• Occurs along fronts
• Wind blowing at different
speeds causes rotation to
start
• Combine with an updraft
of air, you have a tornado
Tornado Videos
• Scales
• https://www.youtube.com/watch?v=0G0UrkAsecY
• https://www.youtube.com/watch?v=7KDz6dGQ5RE
Hurricanes
• Most powerful of all
storms
• Large, swirling low
pressure systems
forming over tropical
ocean
• Powered by warm,
moist ocean air
Hurricane Videos
• https://www.youtube.com/watch?v=zP4rgvu4xDE
• Difference Between Hurricane and Tornado
• https://www.youtube.com/watch?v=W0LskBe_QfA
Warning vs Watch
• Severe weather watch
• Stay tuned, and
make preparations
• Conditions are
favorable
• Severe weather
warning
• Take shelter, it’s
here