THE WINTER OF JUST HOW WEIRD WAS IT EXACTLY?
|
|
- Letitia Franklin
- 5 years ago
- Views:
Transcription
1 Courtesy Reuters Buffalo New York THE WINTER OF JUST HOW WEIRD WAS IT EXACTLY? Eyad Atallah and John Gyakum McGill University
2 Some Headlines Certainly for large portions of southern Canada and the northern USA, the story of the winter was unusually cold weather resulting in scenes like this from Niagara Falls. (March 2, 2014 High temp -13C, low -19C.
3 Some Headlines In fact, The Great Lakes showed the largest amount of Ice Cover in over 35 years with only Lake Ontario remaining largely ice free
4 Meanwhile on the other side of the Atlantic The United Kingdom was unusually warm with wide swaths where the temperature was over 2 C above normal. And at the same time precipitation amounts were generally % above normal
5 A case of extremes An examination of Climate Division Rankings shows that parts of the Midwest had a top 5 coldest winter while parts of the Southwest had the warmest cool season ever Climate Division Data
6 The extremes were not a local phenomena, but the cold was An examination of the hpa Thickness relative to a 66 year climatology shows a small area of -3C near Hudson Bay and corresponding +3C anomalies in the North Pacific and Eastern Europe
7 The extremes were not a local phenomena, but the cold was The previous picture becomes a little more stark when you consider the ranks of the thickness over the 66 Year period since 1949
8 Hemispheric Average Thickness The negative anomalies from this winter are particularly impressive when you consider the background state of the atmosphere is warming Northern Hemisphere Area Weighted Thickness Ave Min-Ave In fact 2014 had the 4 th warmest average thickness and the coldest average thickness value is also the 4 th t
9 Latitude Band Average Thickness In fact, Polar latitudes experienced the highest average thickness on record consistent with the southern displacemen t of the Polar Vortex Area Weighted Average hpa Thickness 45-60N 75-90N 15-30N Linear (45-60N) Linear (75-90N) Linear (15-30N) y = x R² = y = x R² = y = x R² =
10 Specific Thickness Thresholds (<480 dam)
11 Specific Thickness Thresholds (<498 dam)
12 Specific Thickness Thresholds (<510 dam)
13 Specific Thickness Thresholds The story behind the thickness thresholds indicates that it really wasn t the quality or intensity of the cold air that was at issue, instead it really was the persistence of the pattern.
14 So why so persistent?
15 Persistence The reason for the persistence is somewhat unclear. A popular perception is that weakening zonal winds result in slower propagation/ more blocking.
16 Persistence However, another possibility is the warm pool in the eastern North Pacific. This warm pool ranks as the 1 st ranked warm anomaly relative to an climatology for the 5 month period.
17 Persistence Interestingly, a global view of the SST anomalies from ESRL suggests that the North Pacific warm pool is THE anomaly globally.
18 Finding Analogues The problem with finding analogues for the winter is the overall trend in thickness, particularly at higher latitudes Area Weighted Average hpa Thickness 45-60N 75-90N 15-30N Linear (45-60N) Linear (75-90N) Linear (15-30N) y = x R² = y = x R² = y = x R² =
19 Finding Analogues Analogues are based on the correlations of the thickness anomaly pattern relative to the pattern that we see in 2014
20 Finding analogues However, doing so results in all of the 7 best analogues (outside of 1990) occurring in the past 15 years because of the ubiquitous warm anomalies in Polar Regions. To get around this problem a linear trend in the thickness is calculated at every grid point leading to a detrended anomaly pattern.
21 Detrended Anomaly Basic Anomaly Detrended Anomaly
22 Analogues Detrended Thickness Anomaly SST Anomalies
23 Persistence A similar global pattern of SST anomalies is again found for 1990
24 Persistence SST anomalies for the five best analogues to An inspection of each of the analogues indicates a North Pacific warm pool...
25 But surely this winter will be different
26 Notable points 4 th Warmest Hemispherically Juxtaposition of Coldest and Warmest average thicknesses in 66 years over the North Atlantic Warmest ever average thickness in the Arctic Air not exceptionally cold/warm, but pattern exceptionally persistent Analogues all show significant North Pacific Warm Pool
Special blog on winter 2016/2017 retrospective can be found here -
March 4, 2019 Special blog on winter 2016/2017 retrospective can be found here - http://www.aer.com/winter2017 Special blog on winter 2015/2016 retrospective can be found here - http://www.aer.com/winter2016
More informationChapter outline. Reference 12/13/2016
Chapter 2. observation CC EST 5103 Climate Change Science Rezaul Karim Environmental Science & Technology Jessore University of science & Technology Chapter outline Temperature in the instrumental record
More informationJennifer Francis Institute of Marine and Coastal Sciences Rutgers University In collaboration with Steve Vavrus, U. of Wisconsin
Jennifer Francis Institute of Marine and Coastal Sciences Rutgers University In collaboration with Steve Vavrus, U. of Wisconsin Arctic Linkages Workshop National Academies of Sciences 12-13 September
More informationPacific Decadal Oscillation ( PDO ):
Time again for my annual Winter Weather Outlook. Here's just a small part of the items I considered this year and how I think they will play out with our winter of 2015-2016. El Nino / La Nina: When looking
More informationWeather and Climate Summary and Forecast January 2018 Report
Weather and Climate Summary and Forecast January 2018 Report Gregory V. Jones Linfield College January 5, 2018 Summary: A persistent ridge of high pressure over the west in December produced strong inversions
More informationThe feature of atmospheric circulation in the extremely warm winter 2006/2007
The feature of atmospheric circulation in the extremely warm winter 2006/2007 Hiroshi Hasegawa 1, Yayoi Harada 1, Hiroshi Nakamigawa 1, Atsushi Goto 1 1 Climate Prediction Division, Japan Meteorological
More informationThe North Atlantic Oscillation: Climatic Significance and Environmental Impact
1 The North Atlantic Oscillation: Climatic Significance and Environmental Impact James W. Hurrell National Center for Atmospheric Research Climate and Global Dynamics Division, Climate Analysis Section
More informationHere s what a weak El Nino usually brings to the nation with temperatures:
Time again for my annual Winter Weather Outlook. Here's just a small part of the items I considered this year and how I think they will play out with our winter of 2018-2019. El Nino / La Nina: When looking
More informationChapter 1 Climate in 2016
Chapter 1 Climate in 2016 1.1 Global climate summary Extremely high temperatures were frequently observed in many regions of the world, and in particular continued for most of the year in various places
More informationSpecial blog on winter 2016/2017 retrospective can be found here -
February 25, 2019 Special blog on winter 2016/2017 retrospective can be found here - http://www.aer.com/winter2017 Special blog on winter 2015/2016 retrospective can be found here - http://www.aer.com/winter2016
More informationLecture 28: Observed Climate Variability and Change
Lecture 28: Observed Climate Variability and Change 1. Introduction This chapter focuses on 6 questions - Has the climate warmed? Has the climate become wetter? Are the atmosphere/ocean circulations changing?
More informationWinter Forecast. Allan Huffman RaleighWx
Winter 2015-16 Forecast Allan Huffman RaleighWx Disclaimer Seasonal forecasting is difficult and you are always learning. I attempt to look at all factors I understand and have seen correlate in the past
More informationWeather and Climate Summary and Forecast November 2017 Report
Weather and Climate Summary and Forecast November 2017 Report Gregory V. Jones Linfield College November 7, 2017 Summary: October was relatively cool and wet north, while warm and very dry south. Dry conditions
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 5 August 2013
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 5 August 2013 Outline Overview Recent Evolution and Current Conditions Oceanic Niño Index
More informationTHE INFLUENCE OF CLIMATE TELECONNECTIONS ON WINTER TEMPERATURES IN WESTERN NEW YORK INTRODUCTION
Middle States Geographer, 2014, 47: 60-67 THE INFLUENCE OF CLIMATE TELECONNECTIONS ON WINTER TEMPERATURES IN WESTERN NEW YORK Frederick J. Bloom and Stephen J. Vermette Department of Geography and Planning
More informationPlan for operational nowcasting system implementation in Pulkovo airport (St. Petersburg, Russia)
Plan for operational nowcasting system implementation in Pulkovo airport (St. Petersburg, Russia) Pulkovo airport (St. Petersburg, Russia) is one of the biggest airports in the Russian Federation (150
More informationWeather and Climate Summary and Forecast March 2018 Report
Weather and Climate Summary and Forecast March 2018 Report Gregory V. Jones Linfield College March 7, 2018 Summary: The ridge pattern that brought drier and warmer conditions from December through most
More informationAn ENSO-Neutral Winter
An ENSO-Neutral Winter This issue of the Blue Water Outlook newsletter is devoted towards my thoughts on the long range outlook for winter. You will see that I take a comprehensive approach to this outlook
More informationWINTER FORECAST NY Metro
2015-2016 WINTER FORECAST NY Metro Weather @NY_WX DISCLAIMER: Seasonal forecasting is difficult and this is my first attempt at a Winter Forecast. I ve looked at all factors and put them together to create
More informationWeather and Climate Summary and Forecast October 2017 Report
Weather and Climate Summary and Forecast October 2017 Report Gregory V. Jones Linfield College October 4, 2017 Summary: Typical variability in September temperatures with the onset of fall conditions evident
More informationSatellites, Weather and Climate Module??: Polar Vortex
Satellites, Weather and Climate Module??: Polar Vortex SWAC Jan 2014 AKA Circumpolar Vortex Science or Hype? Will there be one this year? Today s objectives Pre and Post exams What is the Polar Vortex
More informationSpecial blog on winter 2016/2017 retrospective can be found here -
January 28, 2019 Special blog on winter 2016/2017 retrospective can be found here - http://www.aer.com/winter2017 Special blog on winter 2015/2016 retrospective can be found here - http://www.aer.com/winter2016
More informationSpecial blog on winter 2016/2017 retrospective can be found here -
February 11, 2019 Special blog on winter 2016/2017 retrospective can be found here - http://www.aer.com/winter2017 Special blog on winter 2015/2016 retrospective can be found here - http://www.aer.com/winter2016
More information2011 Year in Review TORNADOES
2011 Year in Review The year 2011 had weather events that will be remembered for a long time. Two significant tornado outbreaks in April, widespread damage and power outages from Hurricane Irene in August
More informationThe Pennsylvania Observer
The Pennsylvania Observer April 2, 2009 March 2009 Pennsylvania Weather Recap Prepared by Curt Harpster For the month of March the saying, In like a lion and out like a lamb really fit the pattern quite
More informationMarch 5, Are Weather Patterns Becoming More Volatile? MMRMA 2015 Risk Management Workshop
Are Weather Patterns Becoming More Volatile? MMRMA 2015 Risk Management Workshop Josh Darr Meteorologist and VP Catastrophe Risk Management GLOBAL TEMPERATURES SINCE 1880 EARTH TEMPERATURE RECORDS SINCE
More informationWinter of was an exceptionally mild winter over most of the country because of the super powerful El Nino event. The month of December 2016
This Winter forecast has already undergone some significant changes. When I initially began the Winter 2016-17 outlook during the middle of October, I was significantly more "bullish" on the overall winter
More informationName: Date: Hour: Comparing the Effects of El Nino & La Nina on the Midwest (E4.2c)
Purpose: Comparing the Effects of El Nino & La Nina on the Midwest (E4.2c) To compare the effects of El Nino and La Nina on the Midwest United States. Background Knowledge: The El Nino-Southern Oscillation
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 25 February 2013
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 25 February 2013 Outline Overview Recent Evolution and Current Conditions Oceanic Niño Index
More informationL.O Students will learn about factors that influences the environment
Name L.O Students will learn about factors that influences the environment Date 1. At the present time, glaciers occur mostly in areas of A) high latitude or high altitude B) low latitude or low altitude
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 11 November 2013
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 11 November 2013 Outline Overview Recent Evolution and Current Conditions Oceanic Niño Index
More information2015: A YEAR IN REVIEW F.S. ANSLOW
2015: A YEAR IN REVIEW F.S. ANSLOW 1 INTRODUCTION Recently, three of the major centres for global climate monitoring determined with high confidence that 2015 was the warmest year on record, globally.
More informationNew Zealand Climate Update No 223, January 2018 Current climate December 2017
New Zealand Climate Update No 223, January 2018 Current climate December 2017 December 2017 was characterised by higher than normal sea level pressure over New Zealand and the surrounding seas. This pressure
More informationNorth Pacific Climate Overview N. Bond (UW/JISAO), J. Overland (NOAA/PMEL) Contact: Last updated: September 2008
North Pacific Climate Overview N. Bond (UW/JISAO), J. Overland (NOAA/PMEL) Contact: Nicholas.Bond@noaa.gov Last updated: September 2008 Summary. The North Pacific atmosphere-ocean system from fall 2007
More informationCharacteristics of 2014 summer climate over South Korea
2 nd East Asia winter Climate Outlook Forum Characteristics of 2014 summer climate over South Korea October 30, 2014 So-Young Yim, E-hyung Park, and Hyun-Sook Jung Climate Prediction Division Korea Meteorological
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 15 July 2013
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 15 July 2013 Outline Overview Recent Evolution and Current Conditions Oceanic Niño Index
More informationNorth Pacific Climate Overview N. Bond (UW/JISAO), J. Overland (NOAA/PMEL) Contact: Last updated: August 2009
North Pacific Climate Overview N. Bond (UW/JISAO), J. Overland (NOAA/PMEL) Contact: Nicholas.Bond@noaa.gov Last updated: August 2009 Summary. The North Pacific atmosphere-ocean system from fall 2008 through
More informationENSO: Recent Evolution, Current Status and Predictions. Update prepared by: Climate Prediction Center / NCEP 30 October 2017
ENSO: Recent Evolution, Current Status and Predictions Update prepared by: Climate Prediction Center / NCEP 30 October 2017 Outline Summary Recent Evolution and Current Conditions Oceanic Niño Index (ONI)
More informationMay 2005 Climate Summary
Ashley Brooks (765) 494-6574 Jun 7, 2005 http://iclimate.org May 2005 Climate Summary May 1-5 Early May was characterized by an upper-level trough that was in place over Indiana that brought in very cool
More informationMDA WEATHER SERVICES AG WEATHER OUTLOOK. Kyle Tapley-Senior Agricultural Meteorologist May 22, 2014 Chicago, IL
MDA WEATHER SERVICES AG WEATHER OUTLOOK Kyle Tapley-Senior Agricultural Meteorologist May 22, 2014 Chicago, IL GLOBAL GRAIN NORTH AMERICA 2014 Agenda Spring Recap North America Forecast El Niño Discussion
More informationEarly May Cut-off low and Mid-Atlantic rains
Abstract: Early May Cut-off low and Mid-Atlantic rains By Richard H. Grumm National Weather Service State College, PA A deep 500 hpa cutoff developed in the southern Plains on 3 May 2013. It produced a
More informationEvidence Linking Arctic Amplification with Changing Weather Patterns in Mid-Latitudes
Evidence Linking Arctic Amplification with Changing Weather Patterns in Mid-Latitudes Jennifer Francis Institute of Marine and Coastal Sciences Rutgers, the State University of New Jersey Steve Vavrus
More informationLinkages between Arctic sea ice loss and midlatitude
Linkages between Arctic sea ice loss and midlatitude weather patterns Response of the wintertime atmospheric circulation to current and projected Arctic sea ice decline Gudrun Magnusdottir and Yannick
More informationKUALA LUMPUR MONSOON ACTIVITY CENT
T KUALA LUMPUR MONSOON ACTIVITY CENT 2 ALAYSIAN METEOROLOGICAL http://www.met.gov.my DEPARTMENT MINISTRY OF SCIENCE. TECHNOLOGY AND INNOVATIO Introduction Atmospheric and oceanic conditions over the tropical
More informationEl Niño / Southern Oscillation
El Niño / Southern Oscillation Student Packet 2 Use contents of this packet as you feel appropriate. You are free to copy and use any of the material in this lesson plan. Packet Contents Introduction on
More informationJEFF JOHNSON S Winter Weather Outlook
JEFF JOHNSON S 2017-2018 Winter Weather Outlook TABLE OF CONTENTS ABOUT THE AUTHOR Components of the seasonal outlook... 2 ENSO state/ocean temperatures... 3 Sub-seasonal outlooks... 4 Forecast models...
More informationAs the Arctic gets warmer, our winters get colder
Van: Hugo van der Molen hugo@hugovandermolen.nl Onderwerp: Datum: 23 juli 2017 18:31 Aan: http://www.popsci.com/polar-freeze (popular Science) As the Arctic gets warmer, our winters get colder And our
More informationWeather and Climate Summary and Forecast January 2019 Report
Weather and Climate Summary and Forecast January 2019 Report Gregory V. Jones Linfield College January 4, 2019 Summary: December was mild and dry over much of the west, while the east was much warmer than
More informationSpecial blog on winter 2016/2017 retrospective can be found here -
January 21, 2019 Special blog on winter 2016/2017 retrospective can be found here - http://www.aer.com/winter2017 Special blog on winter 2015/2016 retrospective can be found here - http://www.aer.com/winter2016
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 23 April 2012
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 23 April 2012 Outline Overview Recent Evolution and Current Conditions Oceanic Niño Index
More informationENSO: Recent Evolution, Current Status and Predictions. Update prepared by: Climate Prediction Center / NCEP 9 November 2015
ENSO: Recent Evolution, Current Status and Predictions Update prepared by: Climate Prediction Center / NCEP 9 November 2015 Outline Summary Recent Evolution and Current Conditions Oceanic Niño Index (ONI)
More informationExample of the one month forecast
Example of the one month forecast Masayuki Hirai Tokyo Climate Center (TCC)/ Climate Prediction Division of Japan Meteorological Agency (JMA) Example Note that the initial time and the forecast target
More informationJMA s Seasonal Prediction of South Asian Climate for Summer 2018
JMA s Seasonal Prediction of South Asian Climate for Summer 2018 Atsushi Minami Tokyo Climate Center (TCC) Japan Meteorological Agency (JMA) Contents Outline of JMA s Seasonal Ensemble Prediction System
More information1 What Is Climate? TAKE A LOOK 2. Explain Why do areas near the equator tend to have high temperatures?
CHAPTER 17 1 What Is Climate? SECTION Climate BEFORE YOU READ After you read this section, you should be able to answer these questions: What is climate? What factors affect climate? How do climates differ
More informationName Date Class. growth rings of trees, fossilized pollen, and ocean. in the northern hemisphere.
Lesson Outline LESSON 2 A. Long-Term Cycles 1. A(n) climate cycle takes much longer than a lifetime to complete. a. To learn about long-term climate cycles, scientists study natural records, such as growth
More informationWhy There Is Weather?
Lecture 6: Weather, Music Of Our Sphere Weather and Climate WEATHER The daily fluctuations in atmospheric conditions. The atmosphere on its own can produce weather. (From Understanding Weather & Climate)
More informationImpacts of Climate on the Corn Belt
Impacts of Climate on the Corn Belt Great Lakes Crop Summit 2015 2015 Evelyn Browning Garriss Conclusions Climate change is not linear. It ebbs and flows. Recent polar volcano eruptions created a cool
More informationWeather and Climate Summary and Forecast Summer 2017
Weather and Climate Summary and Forecast Summer 2017 Gregory V. Jones Southern Oregon University August 4, 2017 July largely held true to forecast, although it ended with the start of one of the most extreme
More informationMeteorology B Wright State Invite Team Name Team # Student Members: &
1 Meteorology B Team Name Team # Student Members: & Raw Score: / 126 Rank: Part I. Multiple Choice. Answer the following questions by selecting the best answer. 2 points each. 1. All of the following are
More informationENSO Cycle: Recent Evolution, Current Status and Predictions. Update prepared by Climate Prediction Center / NCEP 24 September 2012
ENSO Cycle: Recent Evolution, Current Status and Predictions Update prepared by Climate Prediction Center / NCEP 24 September 2012 Outline Overview Recent Evolution and Current Conditions Oceanic Niño
More informationDeke Arndt, Chief, Climate Monitoring Branch, NOAA s National Climatic Data Center
Thomas R. Karl, L.H.D., Director, NOAA s National Climatic Data Center, and Chair of the Subcommittee on Global Change Research Peter Thorne, PhD, Senior Scientist, Cooperative Institute for Climate and
More informationWeather and Climate Summary and Forecast October 2018 Report
Weather and Climate Summary and Forecast October 2018 Report Gregory V. Jones Linfield College October 4, 2018 Summary: Much of Washington, Oregon, coastal California and the Bay Area and delta region
More informationWeather and Climate Summary and Forecast March 2019 Report
Weather and Climate Summary and Forecast March 2019 Report Gregory V. Jones Linfield College March 2, 2019 Summary: Dramatic flip from a mild winter to a top five coldest February on record in many locations
More informationWinter Forecast for GPC Tokyo. Shotaro TANAKA Tokyo Climate Center (TCC) Japan Meteorological Agency (JMA)
Winter Forecast for 2013 2014 GPC Tokyo Shotaro TANAKA Tokyo Climate Center (TCC) Japan Meteorological Agency (JMA) NEACOF 5, October 29 November 1, 2013 1 Outline 1. Numerical prediction 2. Interannual
More informationWeather Outlook: 2015 Growing Season
Weather Outlook: 2015 Growing Season Leon F. Osborne Chester Fritz Distinguished Professor Regional Weather Information Center University of North Dakota Grand Forks, North Dakota Why Should We Be Concerned?
More informationMonthly Long Range Weather Commentary Issued: July 18, 2014 Steven A. Root, CCM, President/CEO
Monthly Long Range Weather Commentary Issued: July 18, 2014 Steven A. Root, CCM, President/CEO sroot@weatherbank.com JUNE 2014 REVIEW Climate Highlights The Month in Review The average temperature for
More informationThe Pennsylvania Observer
The Pennsylvania Observer January 5, 2016 December 2015 - Pennsylvania Weather Recap By: Arthur Person December is the first of the three coldest months of the year. Sometimes it can be naughty, and sometimes
More informationAlaska Statewide Climate Summary February 2019
Alaska Statewide Climate Summary February 2019 The following report provides an overview of the February 2019 weather. The report is based on preliminary data from selected weather stations throughout
More informationAtmospheric linkages between the Arctic and mid-latitudes
Atmospheric linkages between the Arctic and mid-latitudes Timo Vihma Finnish Meteorological Institute The University Centre in Svalbard Thanks to James Overland, Jennifer Francis, Klaus Dethloff, James
More informationWeather and Climate Summary and Forecast December 2017 Report
Weather and Climate Summary and Forecast December 2017 Report Gregory V. Jones Linfield College December 5, 2017 Summary: November was relatively cool and wet from central California throughout most of
More information1. Oceans. Example 2. oxygen.
1. Oceans a) Basic facts: There are five oceans on earth, making up about 72% of the planet s surface and holding 97% of the hydrosphere. Oceans supply the planet with most of its oxygen, play a vital
More informationImpacts of the April 2013 Mean trough over central North America
Impacts of the April 2013 Mean trough over central North America By Richard H. Grumm National Weather Service State College, PA Abstract: The mean 500 hpa flow over North America featured a trough over
More informationThe Pennsylvania Observer
The Pennsylvania Observer December 2, 2015 November 2015 - Pennsylvania Weather Recap By: Anthny Chiavaroli This November was dry with above average temperatures across the state. Western PA saw some very
More informationClimate Forecast Applications Network (CFAN)
Forecast of 2018 Atlantic Hurricane Activity April 5, 2018 Summary CFAN s inaugural April seasonal forecast for Atlantic tropical cyclone activity is based on systematic interactions among ENSO, stratospheric
More informationCalifornia 120 Day Precipitation Outlook Issued Tom Dunklee Global Climate Center
California 120 Day Precipitation Outlook Issued 11-01-2008 Tom Dunklee Global Climate Center This is my second updated outlook for precipitation patterns and amounts for the next 4 s of the current rainy
More information2. Can you describe how temperature and dissolved solids changes the density of water?
Unit 4: Oceanography LT 4.1 Density: I can explain the role density plays to help form some currents. #1 Yes I can: 1. Can you explain what density is and how you calculate it? 2. Can you describe how
More informationClimate Trends and Variations Bulletin Winter
Climate Trends and Variations Bulletin Winter 2014 2015 This bulletin summarizes recent climate data and presents it in a historical context. It first examines the national average temperature for the
More informationLesson 3 Latitude is Everything
Latitude is Everything Essential Question: How does latitude affect the Amount of Solar Energy an Area Receives and that Area s Climate? Objective: Students will be able to explain how the sun s energy
More informationExtreme Weather and Climate Change: the big picture Alan K. Betts Atmospheric Research Pittsford, VT NESC, Saratoga, NY
Extreme Weather and Climate Change: the big picture Alan K. Betts Atmospheric Research Pittsford, VT http://alanbetts.com NESC, Saratoga, NY March 10, 2018 Increases in Extreme Weather Last decade: lack
More informationClimate Changes due to Natural Processes
Climate Changes due to Natural Processes 2.6.2a Summarize natural processes that can and have affected global climate (particularly El Niño/La Niña, volcanic eruptions, sunspots, shifts in Earth's orbit,
More informationNOAA 2015 Updated Atlantic Hurricane Season Outlook
NOAA 2015 Updated Atlantic Hurricane Season Outlook Dr. Gerry Bell Lead Seasonal Forecaster Climate Prediction Center/ NOAA/ NWS Collaboration With National Hurricane Center/ NOAA/ NWS Hurricane Research
More informationbut 2012 was dry Most farmers pulled in a crop
After a winter that wasn t, conditions late in the year pointed to a return to normal snow and cold conditions Most farmers pulled in a crop but 2012 was dry b y M i k e Wr o b l e w s k i, w e a t h e
More informationWinter. Here s what a weak La Nina usually brings to the nation with tempseraures:
2017-2018 Winter Time again for my annual Winter Weather Outlook. Here's just a small part of the items I considered this year and how I think they will play out with our winter of 2017-2018. El Nino /
More informationATMOSPHERIC MODELLING. GEOG/ENST 3331 Lecture 9 Ahrens: Chapter 13; A&B: Chapters 12 and 13
ATMOSPHERIC MODELLING GEOG/ENST 3331 Lecture 9 Ahrens: Chapter 13; A&B: Chapters 12 and 13 Agenda for February 3 Assignment 3: Due on Friday Lecture Outline Numerical modelling Long-range forecasts Oscillations
More informationEurasian Snow Cover Variability and Links with Stratosphere-Troposphere Coupling and Their Potential Use in Seasonal to Decadal Climate Predictions
US National Oceanic and Atmospheric Administration Climate Test Bed Joint Seminar Series NCEP, Camp Springs, Maryland, 22 June 2011 Eurasian Snow Cover Variability and Links with Stratosphere-Troposphere
More informationThe Climate System and Climate Models. Gerald A. Meehl National Center for Atmospheric Research Boulder, Colorado
The Climate System and Climate Models Gerald A. Meehl National Center for Atmospheric Research Boulder, Colorado The climate system includes all components of the physical earth system that affect weather
More informationHigh-Resolution MPAS Simulations for Analysis of Climate Change Effects on Weather Extremes
High-Resolution MPAS Simulations for Analysis of Climate Change Effects on Weather Extremes ALLISON MICHAELIS, GARY LACKMANN, & WALT ROBINSON Department of Marine, Earth, and Atmospheric Sciences, North
More informationNew Zealand Climate Update No 226, April 2018 Current climate March 2018
New Zealand Climate Update No 226, April 2018 Current climate March 2018 March 2018 was characterised by significantly higher pressure than normal to the east of New Zealand. This pressure pattern, in
More informationENSO Outlook by JMA. Hiroyuki Sugimoto. El Niño Monitoring and Prediction Group Climate Prediction Division Japan Meteorological Agency
ENSO Outlook by JMA Hiroyuki Sugimoto El Niño Monitoring and Prediction Group Climate Prediction Division Outline 1. ENSO impacts on the climate 2. Current Conditions 3. Prediction by JMA/MRI-CGCM 4. Summary
More informationCLIMATE RESILIENCE FOR ALBERTA MUNICIPALITIES CLIMATE PROJECTIONS NORTHERN ALBERTA. Dr. Mel Reasoner Reasoner Environmental Consulting
CLIMATE RESILIENCE FOR ALBERTA MUNICIPALITIES CLIMATE PROJECTIONS NORTHERN ALBERTA Dr. Mel Reasoner Reasoner Environmental Consulting Probability of occurrence Increase in Mean Temperature & Variance Less
More informationThe Pennsylvania Observer
The Pennsylvania Observer April 2, 2010 March 2010 Pennsylvania Weather Recap Prepared by: Katelyn Johnson March did come in as a lion cub this year. The 1 st proved to be a calm day; however most of Pennsylvania
More informationWarming after a cold winter will disappear quickly as it did in 2007 By Joseph D Aleo
Warming after a cold winter will disappear quickly as it did in 2007 By Joseph D Aleo The pop in global temperatures, even the satellite, the last few months seems surprising to some in the Northern Hemisphere
More information1 What Is Climate? TAKE A LOOK 2. Explain Why do areas near the equator tend to have high temperatures?
CHAPTER 17 1 What Is Climate? SECTION Climate BEFORE YOU READ After you read this section, you should be able to answer these questions: What is climate? What factors affect climate? How do climates differ
More informationWeather and Climate Summary and Forecast August 2018 Report
Weather and Climate Summary and Forecast August 2018 Report Gregory V. Jones Linfield College August 5, 2018 Summary: July 2018 will likely go down as one of the top five warmest July s on record for many
More informationWeather and Climate Summary and Forecast Winter
Weather and Climate Summary and Forecast Winter 2016-17 Gregory V. Jones Southern Oregon University February 7, 2017 What a difference from last year at this time. Temperatures in January and February
More informationMonthly Long Range Weather Commentary Issued: May 15, 2014 Steven A. Root, CCM, President/CEO
Monthly Long Range Weather Commentary Issued: May 15, 2014 Steven A. Root, CCM, President/CEO sroot@weatherbank.com APRIL 2014 REVIEW Climate Highlights The Month in Review The average temperature for
More informationPercentage of normal rainfall for August 2017 Departure from average air temperature for August 2017
New Zealand Climate Update No 219, August 2017 Current climate August 2017 Overall, mean sea level pressure was lower than normal over and to the west of New Zealand during August while higher than normal
More information[This page intentionally left blank.]
[This page intentionally left blank.] Changes in Ice Storm Frequency Across the United States Southern Climate Impacts Planning Program University of Oklahoma Carly Kovacik and Kevin Kloesel June 2014
More informationENSO, AO, and climate in Japan. 15 November 2016 Yoshinori Oikawa, Tokyo Climate Center, Japan Meteorological Agency
ENSO, AO, and climate in Japan 15 November 2016 Yoshinori Oikawa, Tokyo Climate Center, Japan Meteorological Agency Aims of this lecture At the end of the yesterday s lecture, Hare-run said, - In the exercise
More informationClimate Outlook for December 2015 May 2016
The APEC CLIMATE CENTER Climate Outlook for December 2015 May 2016 BUSAN, 25 November 2015 Synthesis of the latest model forecasts for December 2015 to May 2016 (DJFMAM) at the APEC Climate Center (APCC),
More information