Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chapter 13 Answer questions as we go along!. Life Cycle of a Thunderstorm Developing Stage a.Towering cumulus cloud indicates rising air. b.Usually little.

Published byRalf Simpson Modified over 8 years ago

Similar presentations

Presentation on theme: "Chapter 13 Answer questions as we go along!. Life Cycle of a Thunderstorm Developing Stage a.Towering cumulus cloud indicates rising air. b.Usually little."— Presentation transcript:

1 Chapter 13 Answer questions as we go along!

2 Life Cycle of a Thunderstorm Developing Stage a.Towering cumulus cloud indicates rising air. b.Usually little if any rain during this stage. c.Lasts about 10 minutes. d.Occasionally lightning during this stage. http://kidlat.pagasa.dost.gov.ph/genmet/thunderstorms/cycle.html Q1

3 Life Cycle of a Thunderstorm Mature Stage a.Most likely time for heavy rain, frequent lightning, strong winds, and tornadoes. b.Storm occasionally has a black or dark green appearance. c.Lasts an average of 10 to 20 minutes but may last much longer in some storms. http://kidlat.pagasa.dost.gov.ph/genmet/thunderstorms/cycle.html Q1

4 Life Cycle of a Thunderstorm Dissipating Stage a.Rainfall decreases in intensity. b.Some thunderstorms produce a burst of strong winds during this stage. c.Lightning remains a danger during this stage. http://kidlat.pagasa.dost.gov.ph/genmet/thunderstorms/cycle.html Q1

5 Lightning Formation http://www.everythingweather.com/lightning/lightningsources.gif

6 “A Bolt out of the Blue” http://www.weather.gov/om/lightning/bolt_blue.htm Lightning can strike up to 25 miles away!!!! Why you can’t swim until at least half an hour after the last thunder rumbles

7 Lightning Stats and Safety State with the most lightning strikes: FL People most commonly hit by lightning: park rangers and golfers http://www.ac-nancy-metz.fr/enseign/anglais/Henry/sign2.jpg Q2

8

9 Thunder (skip down to question 7) Lightning superheats the air Air expands faster than the speed of sound Creates a sonic boom Every 5 seconds counted between lightning and thunder = 1 mile to lightning bolt http://www.uwec.edu/jolhm/EH3/Group2/Pictures/lightning.jpg

10 Fulgurites Lightning hits sand or concrete (made of mostly sand) Brittle hollow tube Like melted glass

11 http://laps.noaa.gov/afwa/eds_stuff/2000_05_12/2000_05_12_nowradwmtrs_v00z13may.gif

12 Cold Fronts: Squall Lines http://images-2.redbubble.net/img/art/size:large/view:main/2308963-2-destructive-squall-line-2.jpg Q3

13 Cold Fronts: Squall Lines http://dannysdesktop.themesunlimited.com/Files/nasa/SquallLineCloudsAtlantic.jpg

14 Squall Lines Chains of thunderstorms Form along cold fronts as they advance Can be accompanied by severe weather such as tornadoes, hail and strong winds http://www.ewashtenaw.org/government/departments/emergency_management/em_Squal%20line%2005212004 Q3-4

15 Super Cells! http://www.erh.noaa.gov/rnk/SKYWARNonline_files/images/image106.png Can form along a cold front Sometimes form as a single celled storm Q5

16 Super Cells Features: –Anvil top –Overshooting top –Wall Cloud –Often, tornado or hail One, very large storm cloud. Caused by extreme heating during the day Q5-6

17 Wall Cloud

18 Tornadoes! Q8

19 Where do most tornadoes form? Tornado Alley: –Midwest US –cP air meets mT air More tornadoes here than anywhere else in the world http://rnp782.er.usgs.gov/atlas2/articles/climate/a_tornadoes.html

20 Tornado Summary http://www.tobyspinks.com/images/birthoftornado.jpg

21 How do mid-west tornadoes form? 3 layers in the atmosphere: –cP off Rockies –cT off Mexican Plateau –mT off Gulf of Mexico Arranged from least dense on the bottom to most dense on top “Dry line” is critical to tornado formation

22 Judging Tornado Strength: The Fujita Scale The Fujita Scale Based on wind speeds over a 3 second gust Based on damage http://newsimg.bbc.co.uk/media/images/42063000/jpg/_42063530_scene5.jpg http://dlg.galileo.usg.edu/tornado/exhibit/images/enhanced_fujita_scale.gif Q9, 10

23 Tornado Damage http://rnp782.er.usgs.gov/atlas2/articles/climate/a_tornadoes.html

24 F0 http://2.bp.blogspot.com/_Y1xTrEn3pwg/R1az-9JGJZI/AAAAAAAAAMI/SB4BT0x_Gas/s400/TornadoF0_SkivDevescovi_NZ.jpg F1 http://images.usatoday.com/weather/_photos/2006/09/12/nssl0068.jpg F2 F3 http://icons-pe.wunderground.com/data/wximagenew/c/crazychick123/0.jpg

25 http://www.stormgasm.com/6-24-03/video%20stills/pic5cropped.jpg F4 F5 http://2.bp.blogspot.com/_mR4eZ6Kvu0I/SFL7B7Za2WI/AAAAAAAAEio/pBygOHcCG9Q/s400/F5+TORNADO+25MAY08+C+X.jpg

26 Tornado Safety http://www.edu4hazards.org/tornado_safety.gif http://www.uwm.edu/Dept/EHSRM/EMERGENCY/tornado_warning.gif Q 11

27 Common East Coast Tornado Radar Signature: Storm Relative Velocity Image Inbound and outbound winds Red: moving towards radar Green: moving away radar

28 Stafford, VA Tornadoes http://youtu.be/291DFi4ExaE (2011)http://youtu.be/291DFi4ExaE Tuscaloosa, AL tornado (long video – skip along!)Tuscaloosa, AL tornado

29 29 Pictures from tornado damage in Stafford Thursday 5/8/08

30 30

31 31

32 32

33 33

34 34

35 35 NATIONAL WEATHER SERVICE CONFIRMS F2 TORNADO HIT

36 36

37 37

38 38

39 39

40 40

41 41

42 Stafford Tornado Clouds! 6/4/08

43 One year later…

44 Hail from 6/3/09 Clumping of smaller hailstones Layers formed as hail is lifted in an updraft, partially melts, then refreezes

45 Why does hail form in the summer?

46 http://www.sportssafety.org/images/lightning-safety-graph1.jpg

47 Tropical Cyclones Hurricanes are large scale cyclones of tropical origin Q 12 Hurricanes 101

48 http://www.srh.noaa.gov/mob/images/donsss06-1.jpg

49 Hurricane Features Eye Eye Wall Feeder Bands What direction do they rotate in the N. Hemi? Why? Q 14-16

50 Q 17

51 Tropical Cyclones: Hurricanes and Typhoons Hurricane BeltsWhere? Why? Q 13-23

52 Tropical Cyclones: Hurricanes and Typhoons Hurricane BeltsWhere? Why? “Hurricanes” “Typhoons” “Typhoon” Q 13-23

53 Tropical Cyclones: Hurricanes and Typhoons Hurricane BeltsWhere? Why? Beyond 20 or 30 N/S: Water is too cold for tropical cyclones to form. “Hurricanes” “Typhoons” “Typhoon” Equator: Coriolis Effect is too weak – No Hurricanes Beyond 20 or 30 N/S: Water is too cold for tropical cyclones to form. Q 13-23

54 Hurricane Facts Wind Speeds Depression = 38 mph Trop storm = 39-73 mph Hurricane = 74 mph “Hurricane Season” June 1- Nov 30 Q 24 - 25

55 Hurricane Damage Winds –VERY strong Flooding –Biggest cause of death –Storm Surge can be up to 30 feet –Caused by combined rotation of winds and the bulldozing of the ocean waters Q 26

56 Saffir Simpson Scale http://www.invention.net/pics/munson599c.jpg Q 27

57 Hurricane Naming Naming:Naming –Alphabetical –Alternate male/female –Names retired if destructive Q 28

58 Most Severe US Hurricanes Katrina: –$90.9 billion (US, 2009) Day by dayDay by day Subsidence of a CitySubsidence of a City Andrew: –$41 billion (US, 2009) Super Cyclone Phailin (2013)

59 Superstorm Sandy Combo of hurricane and a nor’easter!

60 “Superstorm” Sandy (2012) Largest Atlantic Hurricane on Record (diameter >1,000 miles) Manhattan Power Outage Subway system

61 “Snowmaggedon” 2010

62 Blizzards Requirements to be a blizzard? –Winds of 35 mph for 3+ hrs –Visibility of less than ¼ mile Nor’easters –Winter storms on the east coast that come from the northeast Thundersnow!Thundersnow Q 29-30

Download ppt "Chapter 13 Answer questions as we go along!. Life Cycle of a Thunderstorm Developing Stage a.Towering cumulus cloud indicates rising air. b.Usually little."

Similar presentations

Weather Maps & Fronts Refers to the state of the atmosphere at a specific time and place. Influenced by pressure systems (high and low) and fronts. Describes.

Weather Maps & Fronts Refers to the state of the atmosphere at a specific time and place. Influenced by pressure systems (high and low) and fronts. Describes.
Storms  Unit 5 Earth Science.

Storms  Unit 5 Earth Science.
Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE
METEOROLOGY WEATHER – SHORT TERM VARIATIONS IN ATMOSPHERIC CONDITIONS.

METEOROLOGY WEATHER – SHORT TERM VARIATIONS IN ATMOSPHERIC CONDITIONS.
October 20, 2014 Objective: I will be able to explain how, where, and why tornadoes form. Entry Task: DO NOT UNPACK – be ready for a new seating chart.

October 20, 2014 Objective: I will be able to explain how, where, and why tornadoes form. Entry Task: DO NOT UNPACK – be ready for a new seating chart.
Weather Part III Storms

Weather Part III Storms
Chapter 24 Section 2 Handout

Chapter 24 Section 2 Handout
Thunderstorms. Thunderstorm Frequency See Figure 10.23 in text.

Thunderstorms. Thunderstorm Frequency See Figure in text.
 Weather that causes damage and destruction  Comes in 3 basic forms, each an escalation of the previous  Thunderstorms  Tornadoes  Hurricanes.

 Weather that causes damage and destruction  Comes in 3 basic forms, each an escalation of the previous  Thunderstorms  Tornadoes  Hurricanes.
Severe Weather.

Severe Weather.
Weather Extreme Weather. Summary  Thunderstorms  Tornadoes  Floods  Droughts  Hurricanes, Typhoons & Tropical Cyclones  Blizzards.

Weather Extreme Weather. Summary  Thunderstorms  Tornadoes  Floods  Droughts  Hurricanes, Typhoons & Tropical Cyclones  Blizzards.
FRONTS 24-2. Fronts When 2 air masses meet density differences keep them separate Front- boundary between air masses 100’s to 1,000’s of miles wide.

FRONTS Fronts When 2 air masses meet density differences keep them separate Front- boundary between air masses 100’s to 1,000’s of miles wide.
Weather Patterns and Severe Storms Chapter 20

Weather Patterns and Severe Storms Chapter 20
Storms and Weather Forecasts

Storms and Weather Forecasts
Weather study guide answer. Humidity  Humidity is the amount of water vapor in air.  The air cannot hold much more water when humidity is high so your.

Weather study guide answer. Humidity  Humidity is the amount of water vapor in air.  The air cannot hold much more water when humidity is high so your.
Severe Weather A SCIENTASTIC PRESENTATION. Storm Chaser’s Clip dominator.htm Discussion.

Severe Weather A SCIENTASTIC PRESENTATION. Storm Chaser’s Clip dominator.htm Discussion.
AIM: Types of severe storms Do Now: In your notes answer the following question. 1) Which pressure system is the cause of severe weather, what is another.

AIM: Types of severe storms Do Now: In your notes answer the following question. 1) Which pressure system is the cause of severe weather, what is another.
Storms Thunderstorms Tornados Flash Floods And Hurricanes.

Storms Thunderstorms Tornados Flash Floods And Hurricanes.
Chapter 19.  Result of intense convection  Associated with heating Earth’s surface ◦ During spring, summer, and fall  Three-stage life cycle: ◦ Beginning.

Chapter 19.  Result of intense convection  Associated with heating Earth’s surface ◦ During spring, summer, and fall  Three-stage life cycle: ◦ Beginning.
Severe Weather. Thunderstorms Small intense systems that can produce strong winds, rain, lightning and thunder. Need 2 conditions –Air near surface needs.

Severe Weather. Thunderstorms Small intense systems that can produce strong winds, rain, lightning and thunder. Need 2 conditions –Air near surface needs.

Similar presentations

Ads by Google