Tornados, hurricanes and global weather
Transcript of Tornados, hurricanes and global weather
Tornadoes, Hurricanes, andGlobal Weather
Tornadoes, Hurricanes, andGlobal Weather
Mr. Jason Simpson
What is SCALE? What is SCALE?
MeasurementMeasurement A Thing ona Fish
A Thing ona Fish
An ActionAn Action
SCALE is related to the ____ of an object AND
the ____ it is active or is occurring.
SCALE is related to the ____ of an object AND
the ____ it is active or is occurring. TIME
SIZE
METEOROLOGY: The study of the atmosphereand the weather that happens in it.
METEOROLOGY: The study of the atmosphereand the weather that happens in it.
MicroscaleMicroscale
There are FOUR scales of measurementin meteorology. They include a
SPACE and a TIME.
There are FOUR scales of measurementin meteorology. They include a
SPACE and a TIME.
MesoscaleMesoscale SynopticSynoptic GlobalGlobal
Comparing and Contrasting “Cyclones!”Comparing and Contrasting “Cyclones!”
“Cyclones” are areas of low pressure. Air pressure is a _____. Air is made up of
tiny _________ that move up, down, and side-to-side in the atmosphere.
“Cyclones” are areas of low pressure. Air pressure is a _____. Air is made up of
tiny _________ that move up, down, and side-to-side in the atmosphere.
MicroscaleMicroscale SynopticSynoptic
FORCEPARTICLES
Comparing and Contrasting “Cyclones!”Comparing and Contrasting “Cyclones!”
Low Pressure(rising air)
Low Pressure(rising air)
High Pressure(sinking air)
High Pressure(sinking air)
The Wind!(horizontal)The Wind!
(horizontal)
Cylones (lows) rotate counter-clockwise.Cylones (lows) rotate counter-clockwise.
A tornado’s wind can range from 65 to over 250miles per hour! The ________ ______ Scale
rates a tornado’s strength based on the damage it does.
A tornado’s wind can range from 65 to over 250miles per hour! The ________ ______ Scale
rates a tornado’s strength based on the damage it does.ENHANCED FUJITAENHANCED FUJITA
EF-0 (65-85 MPH)EF-0 (65-85 MPH) EF-1 (86-110 MPH)EF-1 (86-110 MPH) EF-2 (111-135 MPH)EF-2 (111-135 MPH)
EF-3 (136-165 MPH)EF-3 (136-165 MPH) EF-4 (166-200 MPH)EF-4 (166-200 MPH) EF-5 (Over 200 MPH)EF-5 (Over 200 MPH)
EF-1 TornadoLeighton, ALEF-1 TornadoLeighton, AL
EF-3Prattville, AL
EF-3Prattville, AL
FOUR (2 in 1974, 1 in 1977, 1 in 1998)FOUR (2 in 1974, 1 in 1977, 1 in 1998)How many EF-5 tornadoes has Alabama recorded? How many EF-5 tornadoes has Alabama recorded?
EF-5 DamageEF-5 Damage
19981998
19771977
LINK
LINKLINKApril 8
Tornadoes form from individual _____________.Tornadoes form from individual _____________.THUNDERSTORMSTHUNDERSTORMS
Radar Image
Cumulonimbus Cloud
View underneath a cumulonimbus into a “wall cloud.”Do you see a tornado here?
Tornadoes are ___________ events because they are small and do not last very long.
Tornadoes are ___________ events because they are small and do not last very long.
MICROSCALEMICROSCALE
Individual Thunderstorms and Tornadoes aretracked by a RADAR.
Individual Thunderstorms and Tornadoes aretracked by a RADAR.
How Radar WorksHow Radar Works
OODoppler Radar detects precipitation, and it can determine
if the rain, hail, or snow is moving TOWARD or AWAY FROMthe radar site!
Doppler Radar detects precipitation, and it can determineif the rain, hail, or snow is moving TOWARD or AWAY FROM
the radar site!
Hurricanes range from a few hundred to a fewthousand miles wide! They are _______ scale events.
Hurricanes range from a few hundred to a fewthousand miles wide! They are _______ scale events.SYNOPTICSYNOPTIC
USA TODAY Saffir-Simpson Scale
Satellite Animation of Hurricane Katrina (2005)
A hurricane’s wind ranges from 74 to over 200 miles perhour. The _____________ scale describes a hurricane’s
strength by wind AND ____________.
A hurricane’s wind ranges from 74 to over 200 miles perhour. The _____________ scale describes a hurricane’s
strength by wind AND ____________.SAFFIR-SIMPSONSAFFIR-SIMPSON
STORM SURGESTORM SURGE
Hurricanes are storm _______.Hurricanes are storm _______.SYSTEMSSYSTEMS
Radar ImageClose-Up Satellite Loopof Hurricane Igor (2010)
The center of a hurricane is called the ____. The weather is ____ in this area.
The center of a hurricane is called the ____. The weather is ____ in this area.
EYEEYE
CALMCALM
What’s the Difference?What’s the Difference?
TornadoTornado HurricaneHurricane
- One Thunderstorm - One Thunderstorm
- Small Size - Small Size
- Short Life - Short Life
- Usually stronger on LAND - Usually stronger on LAND
- Strength is in the wind - Strength is in the wind
- System of thunderstorms - System of thunderstorms
- Large Size - Large Size
- Long Life - Long Life
- Strong over WATER - Strong over WATER
- Strength is in the wind AND water (storm surge) - Strength is in the wind AND water (storm surge)
- Tornadoes are a part of a storm, they do not CREATE storms. - Tornadoes are a part of a storm, they do not CREATE storms. - Hurricanes are made of
storms and can CREATEtornadoes!
- Hurricanes are made ofstorms and can CREATEtornadoes!
What is This Thing?What is This Thing?
Waterspouts are tornadoeson water!
Waterspouts are tornadoeson water!
The GLOBAL PictureThe GLOBAL Picture
The ___ ______is a global scaleweather feature.
It is a river of ___that moves
storm systems.
The ___ ______is a global scaleweather feature.
It is a river of ___that moves
storm systems.
JET STREAM
AIR
The GLOBAL PictureThe GLOBAL Picture
WESTERLIES
EASTERLIESHurricanes form in the
_____________.Alabama is often
in this bandof wind in the Summer
and early Fall.
Hurricanes form in the_____________.
Alabama is oftenin this band
of wind in the Summerand early Fall.
Alabama is usually inthe ____________.
That is where mostsevere storms andtornadoes occur.
Alabama is usually inthe ____________.
That is where mostsevere storms andtornadoes occur.
The GLOBAL PictureThe GLOBAL Picture
Global circulation beginswith the ___! Unevenheat on Earth’s surfacecauses air to move. Movingair is called ______.
Global circulation beginswith the ___! Unevenheat on Earth’s surfacecauses air to move. Movingair is called ______.
SUNSUN
WINDWIND
The GLOBAL PictureThe GLOBAL PictureThe westerlies bring a clash of air masses where _______ form.The westerlies bring a clash of air masses where _______ form.FRONTSFRONTS
An unstable, warm air mass, changing winds, andthunderstorms are where tornadoes usually come
from.
An unstable, warm air mass, changing winds, andthunderstorms are where tornadoes usually come
from.
The GLOBAL PictureThe GLOBAL Picture
Hurricanes form in the __________ (Trade Winds).Hurricanes form in the __________ (Trade Winds).EASTERLIESEASTERLIES
This band of wind moves north toward Alabama in Summer and early Fall.
This band of wind moves north toward Alabama in Summer and early Fall.
The GLOBAL PictureThe GLOBAL Picture
The atmosphere’s mission is to bring _____________.The atmosphere’s mission is to bring _____________.EQUILIBRIUMEQUILIBRIUM
This is why we have STORMS!This is why we have STORMS!
The GLOBAL PictureThe GLOBAL PictureHurricanes transport _____ air from the tropics
toward the poles. Hurricanes transport _____ air from the tropics
toward the poles. WARMWARM
The GLOBAL PictureThe GLOBAL PictureThunderstorms transport warm air near the
surface high into the very cold atmosphere above.
Thunderstorms transport warm air near the surface
high into the very cold atmosphere above.
The surface is ________, and the air high above the surface is __________.
The surface is ________, and the air high above the surface is __________.
COOLEDCOOLED
WARMEDWARMED
QUESTIONS?QUESTIONS?