SEVERE STORMS II Chapter 19 Test 5 material End TORNADOES ARE RAPIDLY ROTATING WINDS THAT BLOW...
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Transcript of SEVERE STORMS II Chapter 19 Test 5 material End TORNADOES ARE RAPIDLY ROTATING WINDS THAT BLOW...
SEVERE STORMS II
Chapter 19Test 5 material
End
TORNADOES
• ARE RAPIDLY ROTATING WINDS THAT BLOW AROUND A SMALL AREA OF INTENSE LOW PRESSURE
• DIAMETERS ARE BETWEEN 300-1800 FEET BUT SOME ARE ONLY A FEW FEET WIDE TO MORE THAN ONE MILE WIDE
• 90% OF THE TIME THEY MOVE FROM SOUTHWEST TO NORTHEAST BUT THEY CAN COME FROM ANY DIRECTION
• GROUND SPEEDS CAN BE OVER 80 MPH BUT OFTEN ARE VERY UNPREDICTABLE
• LAST ONLY A FEW MINUTES• HAVE PATH LENGTH OF ABOUT 4
MILES• DEADLIEST TORNADOES OCCUR IN
FAMILIES
SUPER OUTBREAK
• 1974 XENIA, OHIO• 148 TORNADOES• LASTED 16 HOURS• 13 STATES• 307 DEATHS
TRI-STATE TORNADO
• MISSOURI-ILLINOIS-INDIANA• OCCURRED IN 1925 WITH 7
TORNADOES• 695 PEOPLE WERE KILLED• SOME TOWNS WERE WIPED OFF
THE MAP
TORNADO ALLEY IN CENTRAL PLAINS
• TEXAS• OKLAHOMA• KANSAS• NEBRASKA• MISSOURI
WHEN DO THEY OCCUR?
• 3/4 OCCUR FROM MARCH TO JULY• 4PM TO 6PM IS PRIME TIME WHEN
SURFACE AIR IS MOST UNSTABLE• CAN OCCUR ANY DAY OF THE YEAR
AND AT ANY TIME
TORNADO WINDS CAN:
• DESTROY BUILDINGS• UPROOT TREES• PICK UP OBJECTS• DRIVE OBJECTS THROUGH METAL
OR TREES• CAUSE CHICKENS TO LOSE THEIR
FEATHERS
MYTH OR FACT?
• OPEN WINDOWS• CLOSE WINDOWS• LEAVE WINDOWS ALONE
MYTH OR FACT?
• GO TO SOUTHWEST CORNER OF BASEMENT
• GO TO ANY CORNER OF THE BASEMENT
• GO TO THE CENTER OF THE BASEMENT
MYTH OR FACT?
• DRIVE YOUR CAR AT A RIGHT ANGLE TO THE STORM TO ESCAPE A TORNADO
• DRIVE STRAIGHT TOWARD THE TORNADO
• GET OUT OF YOUR CAR AND GET INTO THE NEAREST DITCH
SHOULD I STAY OR SHOULD I GO?
• MOBILE HOME? (BYE, BYE, MISS AMERICAN PIE)
• MALL?• GYM?
FUJITA SCALE
• F0 = 40 -72 MPH• F1 = 73-112 MPH• F2 = 113-157 MPH• F3 = 158-206 MPH• F4 = 207-260 MPH• F5 261-318 MPH
INTERACTIVE TORNADO
• CAN YOU GUESS THE FUJITA NUMBER & WHEN WILL THE COW FLY THROUGH THE AIR?
• http://whyfiles.org/013tornado/3.html
CLOUDS ASSOCIATED WITH TORNADOES
• WALL CLOUD• MAMMATUS• FUNNEL CLOUD - ELEPHANT
TRUNK, WEDGE, CONE, CYLINDER, AMORPHOUS
• SUCTION VORTICES
SEVERE STORM WATCH
• ISSUED BY STORM PREDICTION CENTER IN KANSAS CITY MEANING CONDITIONS ARE POSSIBLE
SEVERE STORM WARNING
• MEAN THUNDERSTORMS HAVE BEEN VISUALLY SPOTTED BY OBSERVER OR BY RADAR
TORNADO WATCH
• ISSUED BY STORM PREDICTION CENTER MEANING CONDITIONS ARE FAVORABLE
TORNADO WARNING
• ISSUED BY LOCAL WEATHER SERVICE MEANING ONE HAS BEEN SPOTTED VISUALLY OR BY RADAR
TORNADO PROJECT
• http://www.tornadoproject.com/
HURRICANES
• INTENSE WARM CORE CYCLONE THAT DEVELOPS OVER TROPICAL WATERS
• ALSO KNOWN AS CYCLONES OR TYPHOONS
STORM SURGE
• WALL OF WATER THAT LIFTS UP IN FRONT OF HURRICANE AS STORM APPROACHES SHALLOWER WATER
• MOST DEVASTATING ASPECT OF THE HURRICANE
WIND CLASSIFICATION
• WINDS LESS THAN 39 MPH = TROPICAL DEPRESSION
• WINDS BETWEEN 39 AND 73 MPH = TROPICAL STORM
• WINDS GREATER THAN 74 MPH = HURRICANE
HURRICANE CATEGORY WITH STORM SURGE
• 1 = 74-95 MPH 4-5 FEET• 2 = 96-110 MPH 6-8 FEET• 3 = 111-130 MPH 9-12 FEET• 4 = 131-155 MPH 13-18 FEET• 5 = 155+ MPH 18+ FEET
HURRICANE CAMILLE
• AUGUST 17TH, 1969 HIT MISSISSIPPI COAST
• 200 MPH WINDS• 24.2 STORM SURGE ABOVE M.S.L.• 258 DEATHS WITH 68 MISSING
AND PRESUMED DEAD• RICHELIEU APARTMENTS – 24
PEOPLE AT HURRICANE PARTY
HURRICANE ISABEL OFF COAST
Hopefully your finals go better than they did for Kellie Pickler
• http://www.youtube.com/watch?v=uEP7uti0PDw&feature=related