Severe Thunderstorms
|
|
- Myron Fox
- 5 years ago
- Views:
Transcription
1 Lecture 26 Severe Thunderstorms NWS Criteria Environment Structure Climatology 1 Severe Thunderstorms NWS Criteria Environment Structure Climatology 2
2 Severe Thunderstorms: NWS Criteria NWS Criteria: to qualify as a severe thunderstorm at least one of the following must be present: Large Hail > 3/4 Inch Strong straight line winds >50 kt Presence of a Tornado 3 The Severe Thunderstorm Environment 4
3 Air Mass vs Severe Thunderstorms Environment: Air Mass thunderstorms form in regions of relatively light winds and light wind shear. Thus they form away from fronts and jet streams. LOW WIND SHEAR HIGH WIND SHEAR IN AN AIR MASS NEAR FRONTS OR JETSTREAMS Air Mass Thunder Storm Severe Thunderstorm 5 The Severe Thunderstorm Environment 6
4 Squall line A series of thunderstorms that form an extended line. 7 Supercell Thunderstorms 8
5 Severe Thunderstorm Structure 9 Super Cell Structure 10
6 Super Cell Structure Shelf cloud at leading edge of downdraft region. 11 Super Cell Structure Shelf cloud at leading edge of downdraft region. 12
7 Super Cell Structure Shelf cloud at leading edge of downdraft region. 13 Gust Front Outflow Boundary 14
8 Outflow Boundary Triggers New Thunderstorms 15 Severe Thunderstorms NWS Criteria: to qualify as a severe thunderstorm at least one of the following must be present: Large Hail > 3/4 Inch Strong straight line winds >50 kt Presence of a Tornado 16
9 Large Hail 17 Large Hail Hail Damage One Colorado hailstorm caused $625,000,000 damage in July Hailstones have high density and fall fast (up to 90 mph) Hail damages Crops Cars, trucks Livestock 18
10 Large Hail > 3/4 inch diameter 19 Large Hail Large hail forms in clouds with High supercooled water content Very strong updrafts Large hailstones make several trips up into the cloud layering tells about hailstone history 20
11 Strong Straight-line Winds >50 knots (57 MPH) 21 Strong Straight-line Winds Strong straight-line winds in thunderstorm are often the result of precipitation produced downdrafts called downbursts. 22
12 Downburst Downbursts can reach wind speeds of ~200 mph! Damage to forests and man made structures. Cause of numerous aviation disasters. 23 Downbursts Downbursts can reach wind speeds of ~200 mph! Damage to forests and man made structures. Cause of numerous aviation disasters. 24
13 Downburst 25 TORNADOS 26
14 27 Lecture 26 Part II Tornados Environment Storm Structure Life Cycle Source of Spin Forecasting Climatology Damage Marilee Thomas of Beaver City, NE took this photograph of her daughter Audra about two miles from a Furnas County tornado in April
15 1st Tornado Photograph 29 Tornado Environment Strong winds aloft (300mb, >25,000 ft), usually associated with the leading (east) side of a trough. Cool, dry air at mid levels (~18,000 ft, ~500 mb), usually brought by winds out of the southwest. Warm humid air at low levels (~5000 ft, 850 mb) brought in by strong gusty southerly winds. 30
16 Tornado Environment 31 Tornadic Thunderstorm Structure A mesocyclone is a rotating vortex in conjunction with the updraft in a supercell storm. Supercells develop mesocyclones by tilting environmental and/or locally generated horizontal vorticity. 32
17 Tornadic Thunderstorm Structure 33 Tornadic Thunderstorm Structure 34
18 Tornado Life Cycle Wall Cloud 35 Tornado Life Cycle The wall cloud usually exhibits a lot of rotation. Wall Cloud 36
19 Tornado Life Cycle The wall cloud usually exhibits a lot of rotation. 37 Tornado Life Cycle The wall cloud usually exhibits a lot of rotation. 38
20 Tornado Life Cycle The wall cloud usually exhibits a lot of rotation. 39 Funnel Formation Tornados usually develop out of the wall cloud, which is located at the bottom of the updraft portion of the storm. 40
21 Young Monster Tornado Early stage of large tornado; stubby funnel 41 Mature Tornado Rotation has reached the ground. Debris cloud kicked up by the winds is visible. 42
Severe Thunderstorms. MET 200 Lecture 24 Flooding in Hawaii and Intro to Severe Thunderstorms. MET 200 Lecture 24 Severe Thunderstorms.
MET 200 Lecture 24 Severe Thunderstorms Damage Swath 1 2 MET 200 Lecture 24 Flooding in Hawaii and Intro to Severe Thunderstorms Severe Thunderstorms Kona Lows Cause more flash floods in Hawaii than any
More information1st Tornado Photograph
Lecture 26 Part II Tornados Environment Storm Structure Life Cycle Source of Spin Forecasting Climatology Damage Marilee Thomas of Beaver City, NE took this photograph of her daughter Audra about two miles
More informationThunderstorms. Ordinary Cell Thunderstorms. Ordinary Cell Thunderstorms. Ordinary Cell Thunderstorms 5/2/11
A storm containing lightning and thunder; convective storms Chapter 14 Severe thunderstorms: At least one: large hail wind gusts greater than or equal to 50 kt Tornado 1 2 Ordinary Cell Ordinary Cell AKA
More informationTOPICS: What are Thunderstorms? Ingredients Stages Types Lightning Downburst and Microburst
THUNDERSTORMS TOPICS: What are Thunderstorms? Ingredients Stages Types Lightning Downburst and Microburst What are Thunderstorms? A storm produced by a cumulonimbus cloud that contains lightning and thunder
More informationThe Earth System - Atmosphere III Convection
The Earth System - Atmosphere III Convection Thunderstorms 1. A thunderstorm is a storm that produces lightning (and therefore thunder) 2. Thunderstorms frequently produce gusty winds, heavy rain, and
More informationMET Lecture 26 Tornadoes I
MET 4300 Lecture 26 Tornadoes I A Large Tornado approaches Lyndon, Kansas, on May 8, 2003 Outline Definition, life cycle Tornado formation within supercells Tornado formation within nonsupercell thunderstorms
More information10/21/2012. Chapter 10 Thunderstorms. Part II. Growth and Development of ordinary Cell Thunderstorms Thunderstorm Electrification.
Chapter 10 Thunderstorms Part I Growth and Development of ordinary Cell Thunderstorms Thunderstorm Electrification Tornadoes Part II Simplified model depicting the life cycle of an ordinary thunderstorm
More informationWeather Systems III: Thunderstorms and Twisters
Weather Systems III: Thunderstorms and Twisters Review 1. Definition of airmasses? Bergeron classification of air masses 2. Surface weather analysis: Station model, wind speed code, present weather 3.
More informationNOAA S National Weather Service
NOAA S National Weather Service Night Spotting Advanced Concepts of Severe Storm Spotting 2012 Rusty Kapela Milwaukee/Sullivan Weather.gov/milwaukee Problems Spotters Encounter Spotters can only see a
More informationSevere Thunderstorm Forecasting and Climatology in Arizona. Ken Drozd Warning Coordination Meteorologist NOAA/NWS Tucson, AZ
Severe Thunderstorm Forecasting and Climatology in Arizona Ken Drozd Warning Coordination Meteorologist NOAA/NWS Tucson, AZ THUNDERSTORM FORMATION All thunderstorms result from the same necessary conditions
More informationThunderstorm: a cumulonimbus cloud or collection of cumulonimbus clouds featuring vigorous updrafts, precipitation and lightning
Thunderstorm: a cumulonimbus cloud or collection of cumulonimbus clouds featuring vigorous updrafts, precipitation and lightning Thunderstorms are responsible for most of what we refer to as severe weather,
More informationTornado Occurrences. Tornadoes. Tornado Life Cycle 4/12/17
Chapter 19 Tornadoes Tornado Violently rotating column of air that extends from the base of a thunderstorm to the ground Tornado Statistics Over (100, 1000, 10000) tornadoes reported in the U.S. every
More informationThunderstorm. Thunderstorms result from the rapid upward movement of warm, moist air.
Severe Weather Thunderstorm A thunderstorm (aka an electrical storm, a lightning storm, or a thundershower) is a type of storm characterized by the presence of lightning and its acoustic effect, thunder.
More informationThunderstorms and Severe Weather. (Chapt 15)
Thunderstorms and Severe Weather (Chapt 15) The Big Picture We ve emphasized horizontal transport of energy to balance the planetary energy budget: Hadley Cell Subtropical divergence Midlatitude cyclones
More informationHAZARDOUS WEATHER 1. Dr. Julie Laity Geography 266
HAZARDOUS WEATHER 1 Dr. Julie Laity Geography 266 Violent Weather Thunderstorms Atmospheric turbulence Lightning and thunder Hail Derechos Tornadoes Tornado measurement and science Tropical Cyclones Hurricanes
More informationThunderstorm: a cumulonimbus cloud or collection of cumulonimbus clouds featuring vigorous updrafts, precipitation and lightning
Thunderstorm: a cumulonimbus cloud or collection of cumulonimbus clouds featuring vigorous updrafts, precipitation and lightning Thunderstorm: a cumulonimbus cloud or collection of cumulonimbus clouds
More informationChapter 14 Thunderstorm Fundamentals
Chapter overview: Thunderstorm appearance Thunderstorm cells and evolution Thunderstorm types and organization o Single cell thunderstorms o Multicell thunderstorms o Orographic thunderstorms o Severe
More informationReview of Basic Severe Thunderstorm & Tornado Spotting Concepts. Jim Allsopp National Weather Service Chicago/Romeoville, IL
Review of Basic Severe Thunderstorm & Tornado Spotting Concepts Jim Allsopp National Weather Service Chicago/Romeoville, IL Why Do We Need Spotters? Radar has limitations, only spotters can provide view
More informationCHAPTER 11 THUNDERSTORMS AND TORNADOES MULTIPLE CHOICE QUESTIONS
CHAPTER 11 THUNDERSTORMS AND TORNADOES MULTIPLE CHOICE QUESTIONS 1. A thunderstorm is considered to be a weather system. a. synoptic-scale b. micro-scale c. meso-scale 2. By convention, the mature stage
More informationChapter 3 Convective Dynamics Part VI. Supercell Storms. Supercell Photos
Chapter 3 Convective Dynamics Part VI. Supercell Storms Photographs Todd Lindley (This part contains materials taken from UCAR MCS training module) Supercell Photos 1 Introduction A supercel storm is defined
More informationTHUNDERSTORMS. Convective heavy rain accompanied by lightning and thunder. Ahrens
THUNDERSTORMS Convective heavy rain accompanied by lightning and thunder Ahrens Thunderstorms About 1,800 T-storms occur around the world at any instant Where do they occur the most? National Lightning
More informationAir Mass Thunderstorms. Air Mass Thunderstorms. Air Mass Thunderstorms. Lecture 26 Air Mass Thunderstorms and Lightning
Lecture 26 and Lightning Life Cycle Environment Climatology Lightning 1 2 Short-lived, isolated thunderstorms that are not severe are often called air-mass thunderstorms. There are three stages describing
More informationTornadogenesis in Supercells: The Three Main Ingredients. Ted Funk
Tornadogenesis in Supercells: The Three Main Ingredients Ted Funk NWS Louisville, KY Spring 2002 Environmental Parameters Supercells occur within environments exhibiting several wellknown characteristics
More informationTornadoes forecasting, dynamics and genesis. Mteor 417 Iowa State University Week 12 Bill Gallus
Tornadoes forecasting, dynamics and genesis Mteor 417 Iowa State University Week 12 Bill Gallus Tools to diagnose severe weather risks Definition of tornado: A vortex (rapidly rotating column of air) associated
More informationTornadoes forecasting, dynamics and genesis. Mteor 417 Iowa State University Week 12 Bill Gallus
Tornadoes forecasting, dynamics and genesis Mteor 417 Iowa State University Week 12 Bill Gallus Tools to diagnose severe weather risks Definition of tornado: A vortex (rapidly rotating column of air) associated
More informationcontact with ground for 1 hour plus, starting 1500 MDT moved N., covered about 37 km width varied m
Goal for today: Finish Ch. 11 Lightning, Thunder & Tornadoes 16 Nov., 2011 Edmonton tornado 31 July 1987 contact with ground for 1 hour plus, starting 1500 MDT moved N., covered about 37 km width varied
More informationTHUNDERSTORMS Brett Ewing October, 2003
THUNDERSTORMS Brett Ewing October, 2003 A natural hazard that occurs often on a daily basis in the lower and mid-latitudes is thunderstorms. Thunderstorms is a weather system that can produce lightning,tornadoes,
More informationTest Form: A Key Final Exam: Spring 2011
Test Form: A Key Final Exam: Spring 2011 Instructions: Write your name (last name and first name) on your bubble sheet. Write your student identification number on the bubble sheet, and carefully and completely
More informationVORTEX-2: SUNY Oswego Soundings Team Significant Observed Weather Events Kevin M. Smith
VORTEX-2: SUNY Oswego Soundings Team Significant Observed Weather Events Kevin M. Smith Summary Last Updated: Final Update The following is a chronological listing of significant weather conditions observed
More informationDEPARTMENT OF EARTH & CLIMATE SCIENCES NAME SAN FRANCISCO STATE UNIVERSITY Fall ERTH FINAL EXAMINATION KEY 200 pts
DEPARTMENT OF EARTH & CLIMATE SCIENCES NAME SAN FRANCISCO STATE UNIVERSITY Fall 2016 Part 1. Weather Map Interpretation ERTH 365.02 FINAL EXAMINATION KEY 200 pts Questions 1 through 9 refer to Figure 1,
More informationATS 351, Spring 2010 Lab #11 Severe Weather 54 points
ATS 351, Spring 2010 Lab #11 Severe Weather 54 points Question 1 (10 points): Thunderstorm development a) Sketch and describe the stages of development of a single cell thunderstorm. About how long does
More informationSolutions to Comprehensive Final Examination Given on Thursday, 13 December 2001
Name & Signature Dr. Droegemeier Student ID Meteorology 1004 Introduction to Meteorology Fall, 2001 Solutions to Comprehensive Final Examination Given on Thursday, 13 December 2001 BEFORE YOU BEGIN!! Please
More informationPractical Use of the Skew-T, log-p diagram for weather forecasting. Primer on organized convection
Practical Use of the Skew-T, log-p diagram for weather forecasting Primer on organized convection Outline Rationale and format of the skew-t, log-p diagram Some basic derived diagnostic measures Characterizing
More informationChapter 8 cont. Clouds and Storms. Spring 2018
Chapter 8 cont. Clouds and Storms Spring 2018 Clouds and Storms Clouds cover ~ 50% of earth at any time. Clouds are linked to a number of condensation processes. Cloud morphology, cloud types, associated
More informationMeteorology. Chapter 10 Worksheet 2
Chapter 10 Worksheet 2 Meteorology Name: Circle the letter that corresponds to the correct answer 1) Downdrafts totally dominate the in the development of a thunderstorm. a) dissipating stage b) mature
More information1 of 7 Thunderstorm Notes by Paul Sirvatka College of DuPage Meteorology. Thunderstorms
1 of 7 Thunderstorm Notes by Paul Sirvatka College of DuPage Meteorology Thunderstorms There are three types of thunderstorms: single-cell (or air mass) multicell (cluster or squall line) supercell Although
More informationWarm season forecasting! Some material adapted from Material Produced at COMET for their Residence Course in Hydrometeorology
Warm season forecasting! Some material adapted from Material Produced at COMET for their Residence Course in Hydrometeorology 1 Outline! Types of stability and application to forecasting! Dry and moist
More informationThunderstorms and Tornadoes. Chapter 14
Thunderstorms and Tornadoes Chapter 14 Thunderstorms A storm containing lightning and thunder convective storms Severe thunderstorms (NWS def) one of following: large hail - ¾ in dia Surface wind gusts
More informationNovember 22, 1992, I-71, Carroll County KY by Irma Doran
November 22, 1992, I-71, Carroll County KY by Irma Doran The World s First Tornado Scientist 1885 April 26, 1884 near Garnett, KS by A.A. Adams The World s First Tornado Photograph August 28, 1884
More informationChapter 8 cont. Clouds and Storms
Chapter 8 cont. Clouds and Storms Spring 2007 Clouds and Storms Clouds cover ~ 50% of earth at any time. Clouds are linked to a number of condensation processes. Cloud morphology, cloud types, associated
More informationTornadoes. tornado: a violently rotating column of air
Tornadoes tornado: a violently rotating column of air Tornadoes What is the typical size of a tornado? What are typical wind speeds for a tornado? Five-stage life cycle of a tornado Dust Swirl Stage Tornado
More informationAdvanced Spotter Training Lesson 4: The Nature of Thunderstorms
Advanced Spotter Training 2009 Lesson 4: The Nature of Thunderstorms From Last Time We discussed the different ways to make air rise. We discussed convection, convergence, and the different kinds of fronts.
More informationATMO Exam 3 Spring Print your name ID Number
ATMO 336-002 Exam 3 Spring 2008 Print your name ID Number Note: In multiple choice questions, more than one answer may be valid. Please check all valid answers. It is OK to use a hand calculator on this
More informationWeather Systems. The air around high-pressure weather systems tends to swirl in a clockwise direction, and usually brings clear skies.
Weather Systems A weather system is a set of temperature, wind, pressure, and moisture conditions for a certain region that moves as a unit for a period of several days. Low-pressure weather systems form
More informationMature Tornado. Tornado funnel and debris cloud. Mature Tornado
Mature Tornado Tornado funnel and debris cloud 43 Mature Tornado 44 Tornado in Final Rope Stage 45 Source of Spin 46 Source of Spin Updraft Stretches Rotating Column 47 Simulation of Tornado Formation
More informationLightning AOSC 200 Tim Canty. Multicell Thunderstorms
Lightning AOSC 200 Tim Canty Class Web Site: http://www.atmos.umd.edu/~tcanty/aosc200 Topics for today: Thunderstorms Lightning Initiation Lightning Detection Upward lightning Lecture 22 Nov 14, 2017 1
More informationCLOUDS & THUNDERSTORMS
Funding provided by NOAA Sectoral Applications Research Project CLOUDS & THUNDERSTORMS Basic Climatology Oklahoma Climatological Survey How are clouds made? Clouds form when air is cooled to its dewpoint
More informationApril 13, 2006: Analysis of the Severe Thunderstorms that produced Hail in Southern Wisconsin
April 13, 2006: Analysis of the Severe Thunderstorms that produced Hail in Southern Wisconsin Danielle Triolo UW Madison Undergraduate 453 Case Study May 5, 2009 ABSTRACT On April 13, 2006 the states of
More informationFinal Exam Clicker Questions ATOC 1050 Spring 2011 Chapter 16: Mountain Snowstorms
Final Exam Clicker Questions ATOC 1050 Spring 2011 Chapter 16: Mountain Snowstorms True or false: Mean annual snowfall in the western United States always increases from south to north. Total precipitation
More information10. Severe Local Storms (Thunderstorms)
10. Severe Local Storms (Thunderstorms) Hail. Can be larger than softball (10 cm in diameter) Smaller damage ratios, but over large areas In USA causes more than $1 billion crop and property damage each
More informationNOAA S National Weather Service
NOAA S National Weather Service Elite Concepts of Severe Storm Spotting 2011 Rusty Kapela Milwaukee/Sullivan www.weather.gov/mkx Elite Spotter Outline Review Types of T storms Tornadic Supercell Classic,
More information5/26/2010. Hailstone Formation and Growth Lightning Stroke Downburst Formation, Structure, and Type
Chapters 20-22: 22: Hailstorms, Lightning, Downbursts Hail Hailstone Formation and Growth Lightning Stroke Downburst Formation, Structure, and Type Hail is one of the most spectacular phenomena associated
More informationExam 2 Results (20% toward final grade)
Exam 2 Results (20% toward final grade) Score between 90-99: 6 students (3 grads, 3 under) Score between 80-89: 2 students Score between 70-79: 3 students Score between 60-69: 2 students Below 59: 1 student
More informationDEPARTMENT OF EARTH & CLIMATE SCIENCES SAN FRANCISCO STATE UNIVERSITY EARTH 365. Fall 2018 Test #2. November :00pm 7:15pm
1 DEPARTMENT OF EARTH & CLIMATE SCIENCES SAN FRANCISCO STATE UNIVERSITY EARTH 365 Fall 2018 Test #2 November 6 2018 6:00pm 7:15pm 200 points (4 points each answer) Answer on the answer sheet provided.
More informationRadar Meteorology AOS 444 October 28, 2002 Laboratory 6: WATADS study of Oakfield tornado from KGRB
Radar Meteorology AOS 444 October 28, 2002 Laboratory 6: WATADS study of Oakfield tornado from KGRB YOUR NAME: YOUR PARTNER S NAME: On July 18, 1996 the town of Oakfield, Wisconsin was all but destroyed
More informationAnthony A. Rockwood Robert A. Maddox
Anthony A. Rockwood Robert A. Maddox An unusually intense MCS produced large hail and wind damage in northeast Kansas and northern Missouri during the predawn hours of June 7 th, 1982. Takes a look at
More informationMeteorology. Review Extreme Weather a. cold front. b. warm front. What type of weather is associated with a:
Meteorology 5.08 Extreme Weather References: FTGU pages 132, 144, 145, 148-155 Air Command Weather Manual Chapters 9 and 15 Review What type of weather is associated with a: a. cold front b. warm front
More informationThe National Oceanic and Atmospheric Administration (NOAA) National Weather Service (NWS) Severe Thunderstorm Observing and Radar Monitoring
The National Oceanic and Atmospheric Administration (NOAA) Presents National Weather Service (NWS) Severe Thunderstorm Observing and Radar Monitoring Severe Weather Spotter Line 1-888-668-3344 Spotter
More informationPhysics 137 Exam 3 Review
Physics 137 Exam 3 Review Chapter 8: Air Masses, Fronts, and Middle-Latitude Cyclones 1. Air Mass: body of air with very little horizontal variation in temperature or humidity at any given altitude 2.
More informationMET Lecture 34 Downbursts
MET 4300 Lecture 34 Downbursts Downbursts A strong downdraft that originates within the lower part of a cumulus cloud or thunderstorms and spreads out at the surface Downbursts do not require strong thunderstorms
More informationExamination #3 Wednesday, 28 November 2001
Name & Signature Dr. Droegemeier Student ID Meteorology 1004 Introduction to Meteorology Fall, 2001 Examination #3 Wednesday, 28 November 2001 BEFORE YOU BEGIN!! Please be sure to read each question CAREFULLY
More informationChapter 3 Convective Dynamics 3.4. Bright Bands, Bow Echoes and Mesoscale Convective Complexes
Chapter 3 Convective Dynamics 3.4. Bright Bands, Bow Echoes and Mesoscale Convective Complexes Photographs Todd Lindley Bright band associated with stratiform precipitation in a squall line system 1 Bright
More informationLightning. lightning: an electrical discharge in the atmosphere. Electricity. Lightning, Thunder and Tornados PHYS 189. Electricity.
, lightning: an electrical discharge in the atmosphere (), week 12 1 / 40 , lightning: an electrical discharge in the atmosphere cloud-to-cloud (80%) cloud-to-ground (20%) (), week 12 1 / 40 Fundamentals
More informationStorms. Tropical Cyclone?
Storms Tropical Cyclone? Tropical Cyclone: low pressure storm forming in the tropics (Start as Thunder Storms). They form around a center, producing heavy winds and rains. Storms What strengthens a Tropical
More informationTornado Dynamics. Readings:
Tornado Dynamics Readings: Klemp (1987) Dynamics of Tornadic Thunderstorms (handout) Bluestein Vol II. Section 3.4.8. Rotunno, R., 1986: Tornadoes and tornadogenesis. In: P. Ray (Editor), Mesoscale Meteorology
More informationMeteorology Practice Exam 3: Chapters 11-14
Class: _ Date: _ Meteorology Practice Exam 3: Chapters 11-14 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Squall lines most often form ahead of a: a.
More informationChapter 21. Weather Patterns and Severe Storms
Chapter 21 Weather Patterns and Severe Storms 20.1 Air Masses Air Masses and Weather Air Masses An air mass is an immense body of air that is characterized by similar temperatures and amounts of moisture
More informationThunderstorms. Stages in the development of a thunderstorm
Severe Weather Outcomes: S2-4-04 Explain the formation and dynamics of selected severe weather phenomena... S2-4-05 Collect, interpret, and analyze meteorological data related to a severe weather event.
More informationFoundations of Earth Science, 6e Lutgens, Tarbuck, & Tasa
Foundations of Earth Science, 6e Lutgens, Tarbuck, & Tasa Weather Patterns and Severe Weather Foundations, 6e - Chapter 14 Stan Hatfield Southwestern Illinois College Air masses Characteristics Large body
More informationIII. Section 3.3 Vertical air motion can cause severe storms
III. Section 3.3 Vertical air motion can cause severe storms http://www.youtube.com/watch?v=nxwbr60tflg&feature=relmfu A. Thunderstorms form from rising moist air Electrical charges build up near the tops
More informationSection 13-1: Thunderstorms
Section 13-1: Thunderstorms Chapter 13 Main Idea: The intensity and duration of thunderstorms depend on the local conditions that create them. Air-mass thunderstorm Mountain thunderstorm Sea-breeze thunderstorm
More informationOn my honor, I have neither given nor received unauthorized aid on this examination.
Instructor(s): Prof. Whiting PHYSICS DEPARTMENT MET 1010 3rd Midterm Exam April 18, 2005 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination.
More informationThunderstorm Downburst Prediction: An Integrated Remote Sensing Approach. Ken Pryor Center for Satellite Applications and Research (NOAA/NESDIS)
Thunderstorm Downburst Prediction: An Integrated Remote Sensing Approach Ken Pryor Center for Satellite Applications and Research (NOAA/NESDIS) Topics of Discussion Thunderstorm Life Cycle Thunderstorm
More informationMeteorology Lecture 18
Meteorology Lecture 18 Robert Fovell rfovell@albany.edu 1 Important notes These slides show some figures and videos prepared by Robert G. Fovell (RGF) for his Meteorology course, published by The Great
More informationWeather Patterns and Severe Storms
Weather Patterns and Severe Storms 20.1 Air Masses Air Masses and Weather Air Masses An air mass is an immense body of air that is characterized by similar temperatures and amounts of moisture at any given
More informationWeather: Air Patterns
Weather: Air Patterns Weather: Air Patterns Weather results from global patterns in the atmosphere interacting with local conditions. You have probably experienced seasonal shifts, such as winter in New
More informationDepartment of Geosciences San Francisco State University Spring Metr 201 Monteverdi Quiz #5 Key (100 points)
Department of Geosciences Name San Francisco State University Spring 2012 Metr 201 Monteverdi Quiz #5 Key (100 points) 1. Fill in the Blank or short definition. (3 points each for a total of 15 points)
More information20.1 Air Masses. Weather Patterns and Severe Storms. Four Types of Source Regions. Weather in North America Fronts
20.1 Air Masses Weather Patterns and Severe Storms Chapter 20 A huge body of air that has a uniform temperature and humidity. They move slowly, and take on the properties of their source regions. Four
More informationChapter 3 Convective Dynamics Part V ñ Bright Bands, Bow Echoes and MCCs. Bright band associated with stratiform precipitation in a squall line system
Chapter 3 Convective Dynamics Part V ñ Bright Bands, Bow Echoes and MCCs Photographs Todd Lindley (This part contains materials taken from UCAR MCS training module) Bright band associated with stratiform
More informationMarine Corps Installations East Regional METOC Center MCAS Cherry Point, NC Standardized Weather Warnings Definitions
Marine Corps Installations East Regional METOC Center MCAS Cherry Point, NC Standardized Weather Warnings Definitions Updated: 25 June 2012 MCIE Standardized Weather Warnings Warning Local Wind Warning
More informationMET Lecture 29 Tornadoes IV
MET 4300 Lecture 29 Tornadoes IV Outline Definition, life cycle, & climatology of tornadoes Tornado formation within supercells Tornado formation within nonsupercell thunderstorms Fujita scale Tornado
More informationStorm Hazards covered in this course
Chasing Tornadoes (LG: 3a) A video Teaser, while students enter the classroom. Day3-60 Tornadoes of 2016 (16:05) Pecos Hank channel https://www.youtube.com/watch?v=nzmtglwx0n4 Watch on your own: 2016 and
More informationLECTURE #15: Thunderstorms & Lightning Hazards
GEOL 0820 Ramsey Natural Disasters Spring, 2018 LECTURE #15: Thunderstorms & Lightning Hazards Date: 1 March 2018 (lecturer: Dr. Shawn Wright) I. Severe Weather Hazards focus for next few weeks o somewhat
More informationReading. What meteorological conditions precede a thunderstorm? Thunderstorms: ordinary or single cell storms, multicell storms, supercell storms
Thunderstorms: ordinary or single cell storms, multicell storms, supercell storms Reading Ahrens, Chapter 14: Thunderstorms and Tornadoes This lecture + next (Lightning, tornadoes) will cover the topic.
More informationThunderstorm Basics. Thunderstorm Climatology
Thunderstorm Basics Part of the fascination many people have with thunderstorms is the mystery that surrounds them. Leading researchers are still learning about many of the phenomena associated with thunderstorms.
More informationModule 11: Meteorology Topic 6 Content: Severe Weather Notes
Severe weather can pose a risk to you and your property. Meteorologists monitor extreme weather to inform the public about dangerous atmospheric conditions. Thunderstorms, hurricanes, and tornadoes are
More informationLow-end derecho of 19 August 2017
Low-end derecho of 19 August 2017 By Richard H. Grumm and Charles Ross National Weather Service State College, PA 1. Overview A cluster of thunderstorms developed in eastern Ohio around 1800 UTC on 19
More informationAnnouncements. No office hours tomorrow (Wed. March 30) Homework 5 extra credit:
Announcements No office hours tomorrow (Wed. March 30) Homework 5 extra credit: Find and plot additional tracks of Hurricane Ivan (after reaching its northeastmost point in U.S) North Dakota Lightning
More informationIntroduction to Forecasting Severe Thunderstorms
Introduction to Forecasting Severe Thunderstorms Ok, we've baked our cake (made a thunderstorm) using some instability and a trigger. Not only that, we know what some of the ingredients actually mean.
More informationJournal of the Meteorological Society of Japan, Vol. 74, No. 1, pp , Life Cycle of the Chitose Tornado of September 22, 1988
Journal of the Meteorological Society of Japan, Vol. 74, No. 1, pp. 125-140, 1996 125 Life Cycle of the Chitose Tornado of September 22, 1988 By Fumiaki Kobayashil, Katsuhiro Kikuchi and Hiroshi Uyeda
More information4/18/2010. National Weather Service. Severe Weather Forecasting: A Western North Carolina Case Study
National Weather Service Severe Weather Forecasting: A Western North Carolina Case Study Laurence G. Lee Science and Operations Officer National Weather Service Greer, SC Plus 13 River Forecast Centers
More informationSevere Weather. Section
1 Section 13 3. 2 SC.912.E.7.5: Predict future weather conditions based on present observations and conceptual models and recognize limitations and uncertainties of such predictions. SC.912.E.7.6: Relate
More informationSevere Weather with a strong cold front: 2-3 April 2006 By Richard H. Grumm National Weather Service Office State College, PA 16803
Severe Weather with a strong cold front: 2-3 April 2006 By Richard H. Grumm National Weather Service Office State College, PA 16803 1. INTRODUCTION A strong cold front brought severe weather to much of
More informationChapter 14 Thunderstorms and Tornadoes
ainstructor's Manual and Test Bank to accompany Meteorology Today, 10 th Edition Jonathan D. W. Kahl University of Wisconsin-Milwaukee Chapter 14 Thunderstorms and Tornadoes Summary Thunderstorms are among
More informationThe Oakfield, Wisconsin, Tornado from July Brett Berenz Student at the University of Wisconsin
The Oakfield, Wisconsin, Tornado from 18-19 July 1996 Brett Berenz Student at the University of Wisconsin Abstract On July 18 th, 1996 an F5 tornado affected the region of Oakfield, Wisconsin. Leading
More informationMeteorology Lecture 19
Meteorology Lecture 19 Robert Fovell rfovell@albany.edu 1 Important notes These slides show some figures and videos prepared by Robert G. Fovell (RGF) for his Meteorology course, published by The Great
More informationSevere Weather Watches, Advisories & Warnings
Severe Weather Watches, Advisories & Warnings Tornado Watch Issued by the Storm Prediction Center when conditions are favorable for the development of severe thunderstorms and tornadoes over a larger-scale
More informationDivergence, Spin, and Tilt. Convergence and Divergence. Midlatitude Cyclones. Large-Scale Setting
Midlatitude Cyclones Equator-to-pole temperature gradient tilts pressure surfaces and produces westerly jets in midlatitudes Waves in the jet induce divergence and convergence aloft, leading to surface
More informationThe Severe Weather Event of 7 August 2013 By Richard H. Grumm and Bruce Budd National Weather Service State College, PA 1. INTRODUCTION and Overview
The Severe Weather Event of 7 August 2013 By Richard H. Grumm and Bruce Budd National Weather Service State College, PA 1. INTRODUCTION and Overview A fast moving short-wave (Fig. 1) with -1σ 500 hpa height
More informationTornadoes. A. T. Willett/The Image Bank/Getty Images
Tornadoes A. T. Willett/The Image Bank/Getty Images Created by Chelsea Austin Introduction to Physical Science, EMPACTS Project, Fall 2012 How are Tornadoes related to Hurricanes? Tornadoes are spawned
More information