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The CoCoRaHS WxTalk Webinar Bi-Monthly Series
In December 2011 CoCoRaHS kicked off a new and exciting monthly Webinar series called CoCoRaHS WxTalk (wx is shorthand for weather). CoCoRaHS WxTalk consists of a series of monthly one-hour interactive Webinars featuring engaging experts in the fields of atmospheric science, climatology and other pertinent disciplines. These easy to follow presentations are live and approximately sixty minutes long. The audience is given the chance to submit questions which the experts answer live on the air.
Topics have included: Snow, Satellites, Hurricanes, Lightning, Clouds, Tornadoes, Flash Floods, Fire Weather, Weather History, Radar and How to become a Meteorologist, just to name a few.
There are many exciting Webinars on the agenda in the months ahead, so please tell your friends to join us. All WxTalk Webinars are free and most are recorded for later viewing. *Although headphones are a good way of listening to the Webinars, only a set of speakers is required to hear the Webinar. The audience will be muted so there is no need for a microphone. All incoming correspondence during the Webinar should be in typed form.
Upcoming WxTalk Webinars:
Webinar #92 - Thursday, November 21, 2024
Meteorology and the Law: The Use of Weather Experts in Litigation Alicia Wasula President STM Weather Cropseyville, NY
(Biography) While most people think of meteorologists as scientists who spend their time looking forward into the future to make a forecast, forensic meteorologists spend their time looking backward at weather events that have already occurred. Many types of litigation involve the weather in some way: personal injury, property damage claims, wrongful death, and even criminal cases. Forensic meteorologists are retained by attorneys as 'expert witnesses' to explain to them and to the court what the weather conditions were like relating to a particular incident. Sometimes, expert meteorologists must give opinions as to how the weather conditions played a role in the particular event involved in the lawsuit. Observational data from many sources, including CoCoRaHS observers, is synthesized into a chronology of weather events. Although many cases settle outside of court, forensic meteorologists are at times required to appear in court to discuss their research and explain their opinion to a judge or a jury. Many forensic meteorologists hold the AMS Certified Consulting Meteorologist certification, which attests to their knowledge, ethics and experience. In addition to conducting scientific analysis, forensic meteorologists must be excellent communicators who are able to explain their findings clearly to non-scientists.
In this webinar, we will discuss the long history of the field of forensic meteorology, learn how observational data is used to understand the meteorological conditions, and look at several interesting examples which demonstrate how forensic meteorologists help attorneys understand the weather as it relates to a specific case.
Webinar #93 - Thursday, February 2025
SNOTEL - SNOpack TELemetry Karl Wetlaufer USDA-NRCS Snow Survey Denver, CO Karl's presentation will explain the history, logistics, uses, etc of SNOTEL (SNOpack TELemetry), which is a remote backcountry array of weather station equipment that measures snow and transmits the data wirelessly to scientists. More information to follow.
Webinar #94 - Thursday, May 2025
Fog and Dew
Jeff Collett Atmospheric Chemistry Colorado State Univ. Fort Collins, CO
Webinar #95 - Thursday, Summer 2025
What is a ‘100-year rainstorm’? And how many CoCoRaHS volunteers have observed one?” Russ Schumacher Colorado Climate Center/CoCoRaHS Colorado State Univ. Fort Collins, CO
(Biography)
You might have heard in the media about a “100-year” (or even a “1000-year”) rainstorm. Although these concepts are backed by statistics and can be quite useful, they are also very prone to misunderstanding and confusion. In this presentation, we’ll explore what a “100-year storm” means (and doesn’t mean), and how to interpret these estimates. We’ll also look through the CoCoRaHS database to highlight instances where CoCoRaHS volunteers observed storms this extreme, and how those observations have helped advance the scientific understanding of heavy precipitation.
Previous CoCoRaHS WxTalk Webinars (click on a link below to view a previous WxTalk Webinar)
SEASON THIRTEEN -- Webinars 2024
Special Webinar - January 2024 "A Review of Significant Weather Events Occurring in 2023" Greg Carbin NOAA/Weather Prediction Center College Park, MD Webinar #89 - March 2024 "So you want to be a meteorologist - 2024 update" Dave Changnon, Victor Gensini Northern Illinois Univ. DeKalb, IL Webinar #90 - May 2024 "Monitoring Climate Change at the World Meteorological Organization (WMO)" Claire Ransom World Meteorological Organization Geneve, Switzerland
Webinar #91 - September 2024 "Measuring beyond precipitation. How is your forest responding to drought?"Peter Goble Colorado Climate Center Colorado State Univ. Fort Collins, CO Webinar #92 - November 2024 "Meteorology and the Law: The Use of Weather Experts in Litigation" Alicia Wasula President STM Weather Cropseyville, NY
SEASON TWELVE -- Webinars 2023
Special Webinar - February 2023 "A Review of Significant Weather Events Occurring in 2022" Greg Carbin NOAA/Weather Prediction Center College Park, MD
Webinar #85 - May 2023 "Influences of Thunderstorms on Aviation Turbulence" Stan Trier UCAR Boulder, CO
Webinar #86 - June 2023 "The 420,002,023rd Year of Biomass Burning on Earth" Tim Brown Desert Research Institute Reno, NV
Webinar #87 - October 2023 "Atmospheric Rivers - 2023 update" Marty Ralph UCSD/Scripps Institute of Oceanography La Jolla, CA
Webinar #88 - December 2023 "Bring it on . . . an avalanche of snow musings" David Robinson Rutgers Univ. New Brunswick, NJ
SEASON ELEVEN -- Webinars 2022
Special Webinar - January 2022 "A Review of Significant Weather Events Occurring in 2021" Greg Carbin NOAA/Weather Prediction Center College Park, MD
Webinar #80 - March 2022 "Snow above freezing? Intriguing phenomena and Mountain Rain or Snow citizen science" Meghan Collins Desert Research Institute Reno, NV
Webinar #81 - May 2022 How does the Pacific ocean affect our weather along the U.S. west coast: sea breezes to “ocean-effect” precipitation Eric Skyllingstad Oregon State University Corvallis, OR
Webinar #82 - July 2022 International Lightning Ron Holle Holle Meteorology & Photography Oro Valley, AZ
Webinar #83 - October 2022 The Graphics Boom – How Not to Go Bust Todd Glickman, Craig Allen WCBS Radio New York, NY
Webinar #84 - November 2022 Flood Warning Systems Mark Moore National Hydrologic Warning Council
SEASON TEN -- Webinars 2021
Special Webinar - January 2021 "A Review of Significant Weather Events Occurring in 2020" Greg Carbin NOAA/Weather Prediction Center College Park, MD
Webinar #75 - March 2021 "COOP - NOAA's long established citizen observation program Amy Fritz NOAA/National Weather Service Silver Spring, MD
| Webinar #76 - May 2021
Mount Washington Observatory, ‘Home of the World’s Worst Weather' Brian Fitzgerald Director of Science and Education Mt. Washington Observatory North Conway, NH
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Webinar #78 - September 2021
"Derechos: Nature’s Wall of Wind" Walker S. Ashley Northern Illinois University Geographic and Atmospheric Sciences DeKalb. IL Webinar #79 - November 2021
"Ice Ice Baby - Predicting Freezing Rain Icing and Impacts" Jay Shafer Northern Vermont University-Lyndon (formerly Lyndon State College) Atmospheric Sciences Lyndonville. VT
SEASON NINE -- Webinars 2020
Webinar #68 - January 2020 Hunting Hurricanes - Heading Straight into the Eye of the Storm Warren Madden NOAA/National Hurricane Center Miami, FL | |
| Webinar #69 - April 2020 NOAA's Weather Prediction Center -- Part 1: A Quick Overview with a Deeper Dive into QPF/Heavy Rainfall Products Greg Gallina NOAA/Weather Prediction Center College Park, MD | | Webinar #70 - June 2020 An Enlightening Chat about Lightning Chris Vagasky Vaisala Inc. Louisville, CO |
Webinar #71 - September 2020 NOAA Weather Radio Bruce Thomas Weather 2020 Kansas City, MO Webinar #72 - October 2020 Awesome or Awful? Ranking Winter Severity with the Accumulated Winter Season Severity Index (AWSSI) Barb Boustead NOAA/NWS’s Warning Decision Training Division Norman, OK
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Webinar #73 - November 2020 Commercial Weather Sector Innovation: Its Evolution in the Great American Weather Enterprise Joel Myers Founder, CEO & Chairman AccuWeather State College, PA |
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Webinar #74 - December 2020 Digging out: Understanding WPC’s Winter Weather Desk Josh Weiss NOAA/Weather Prediction Center College Park, MD
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SEASON EIGHT -- Webinars 2019
| | | Webinar #64 - January 2019 Winter Weather, Climate and Snow Elizabeth Burakowski Research Assistant Professor University of New Hampshire Durham, NH | Webinar #65 & #66 - March, October 2019 Into the wind…Oh, the places mobile radars will go! Parts One and Two Karen Kosiba Center for Severe Weather Research Boulder, CO |
| Webinar #67 - December 2019 Wind Meteorology as Super Hero: A Primer on Wind Energy and the Global Transition to Renewable Energy Greg Poulos ArcVera Renewables Golden, CO | | | | | |
SEASON SEVEN -- Webinars 2018
SEASON SIX -- Webinars 2017
| | | Webinar #56 - January 2017 GOES-R - Going from Black-And-White to High Definition Satellite Observations Matt Rogers CIRA Fort Collins, CO | | Webinar #57 - March 2017 Carbon in the Atmosphere Scott Denning Dept of Atmospheric Science Colorado State Univ. Fort Collins, CO
| Webinar #58 - May 2017 What is the American Meteorological Society and why is it important to you? Keith Seitter American Meteorological Society Boston, MA | | Webinar #59 - July 2017 Mesoscale convective systems: Bringing both beneficial rains and hazardous weather to the central and eastern US Russ Schumacher Colorado State Univ. Fort Collins, CO | Webinar #60 - November 2017 The National Weather Association (NWA) - who are we, what do we do? Gail Hartfield President National Weather Association National Weather Service Raleigh, NC | |
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SEASON FIVE -- Webinars 2016
| | | Webinar #44 - January 2016 Weather Underground: How 130,000 Personal Weather Stations Make a Difference Bob Henson, Jeff Masters Weather Underground Atlanta, GA | | Webinar #45 - February 2016 Evolving Outdoor Safety through Preparedness Programs Charlie Woodrum NOAA/NWS/National Decision Support Services National Weather Service Headquarters Silver Spring, MD
| | | | Webinar #46 - March 2016 The Day in the life of a TV Meteorologist Alan Sealls Chief Meteorologist, WKRG Mobile, AL
| | Webinar #47 - April 2016 The Climate and Weather of the Midwestern United States Mike Timlin Midwest Regional Climate Center Champaign, IL
| | | | Webinar #48 - May 2016 The Climate and Weather of the U.S. High Plains Natalie Umphlett High Plains Regional Climate Center, Lincoln, NE | | Webinar #49 - June 2016 Weather, climate and extremes in the western U.S. Nina Oakley Western Regional Climate Center, Reno, NV
| | | | Webinar #50 - July 2016 The Climate of the Southeast U.S.: Geographic Patterns and Trends in Extreme Weather Events Chip Konrad Southeastern Regional Climate Center Chapel Hill, NC | | Webinar #51 - August 2016 The Weather and Climate of the Northeast U.S. Samantha Borisoff Northeastern Regional Climate Center Cornell University Cornell, NY
| | | | Webinar #52 - September 2016 Climate of the South-Central United States: Hot Spot for Extreme Events Barry Keim, Luigi Romolo, and Alan Black Southern Regional Climate Center Baton Rouge, LA
| | Webinar #53 - October 2016 The COMET Program: Freely available online lessons in weather and the natural sciences Matt Kelsch, Greg Byrd COMET Boulder, CO
| Webinar #54 - November 2016 Weather, Climate and Phenology Theresa Crimmins National Phenology Network (NPN) Tucson, AZ
| | Webinar #55 - December 2016 Climate through a PRISM: Exploring the spatial patterns of climate across the United States Chris Daly Oregon State Univ/PRISM Corvallis, OR |
SEASON FOUR -- Webinars 2015
| | | Webinar #38 - January 2015 "Avalanches in the US … In a Nutshell" Simon Trautman Forest Service National Avalanche Center Bozeman, MT
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| Webinar #39 - February 2015 "Agricultural Meteorology: Layer Upon Layer" Brad Rippey Mark Brusberg USDA Office of the Chief Economist World Agricultural Outlook Board Washington, DC
| =========================== WxTalk Webinar on vacation from March 2015 - August 2015 ===========================
| | Webinar #40 - September 2015 "The history and uses of volunteer weather observations in the United States" Nolan Doesken Colorado Climate Center, Colorado State Univ., Fort Collins, CO
| Webinar #41 - October2015 "Introduction to the North American Monsoon" Chris Castro Univ. of Arizona, Tucson, AZ
| | Webinar #42 - November 2015 "All You Ever Wanted To Know About Lake-effect Snow” Thomas Niziol The Weather Channel, Atlanta, GA
| SPECIAL WEBINAR - December 2015 "A Review of Significant Weather Events Occurring in 2015" Greg Carbin NOAA/Storm Prediction Center Norman, OK | | Webinar #43 - December 2015 "Radiosondes, it’s what’s overhead that counts” Paul Ciesielski Colorado State University, Fort Collins, CO |
SEASON THREE -- Webinars 2014
| | | Webinar #26 - January 2014 The Hydrologic Cycle: How River Forecast Centers Measure the Parts Greg Story NOAA/NWS/West Gulf River Forecast Center Fort Worth, TX | | Webinar #27 - February 2014 Life as a climatologist – what the heck does a climatologist do? Ryan Boyles North Carolina Climate Center Raleigh, NC | | | | Webinar #28 - March 2014 Keeping an eye on the Blue Marble: How NASA studies Earth’s weather, climate and hydrology from space Dalia Kirschbaum NASA/Goddard Space Flight Center Greenbelt, MD | | Webinar #29 - April 2014 Air Quality: Local, Regional, and Global Perspectives Sonia Kreidenweis Colorado State University Fort Collins, CO | | | | Webinar #30 - May 2014 Aviation Meteorology: All you ever wanted to know . . . topics from what causes clear air turbulence to how airports’ traffic flow is impacted by weather. Mike Bardou National Weather Service Chicago/Romeoville Romeoville, IL
Robb Kaczmarek NOAA/NWS/Chicago Air Route Traffic Control Center Aurora, IL | | Webinar #31 - June 2014 Waterspouts: The Wet-Whirlwind Cousin to the Tornado Joseph H. Golden Golden Research & Consulting Boulder, CO | | | | Webinar #32 - July 2014 Space Weather: What is it and why should you care? Rodney Viereck NOAA/Space Weather Prediction Center Boulder, CO | | Webinar #33 - August 2014 Weather CSI - Forensic Meteorology Pam Knox, CCM University of Georgia Athens, GA | | | | Webinar #34 - September 2014 "A day in the life of a NWS Forecast Office" John Gordon National Weather Service Forecast Office Louisville, KY | | Webinar #35 - October 2014 "Atmospheric Rivers" Marty Ralph Center for Western Weather and Water Extremes UCSD/Scripps Institution of Oceanography La Jolla, CA | Webinar #36 - November 2014 "NOHRSC - The National Operational Hydrologic Remote Sensing Center" Carrie Olheiser NOAA/National Operational Hydrologic Remote Sensing Center (NOHRSC) Chanhassen, MN | |
Webinar #37 - December 2014 "Tsunami Science and Tsunami Warning Systems" Stuart Weinstein NOAA/Pacific Tsunami Warning Center Ewa Beach, HI | SPECIAL WEBINAR - December 2014 "A Review of Significant Weather Events Occurring in 2014" Greg Carbin NOAA/Storm Prediction Center Norman, OK | | | | | | |
SEASON TWO -- Webinars 2013
| | | Webinar #14 - January 2013 Flavors of Climate variability: El Nino, La Nina and Recurring Jet Stream patterns Gerry Bell NOAA/CPC College Park, MD | | Webinar #15 - February 2013 "Educated Echoes: An Introduction to Doppler and Dual-polarization Weather Radar " Pat Kennedy CHILL Radar Colorado State University Fort Collins, CO | | | | Webinar #16 - March 2013 "I before E" Except in Drought Mark Svoboda NDMC Lincoln, NE | | Webinar #17 - April 2013 Forecasting the Ferocious: The How, What, Where and Why of Tornadoes Greg Carbin NOAA/Storm Prediction Center Norman, OK | | | | Webinar # 18 - May 2013 At the Cutting Edge: Harry Wexler and the Emergence of Atmospheric Science Jim Fleming Colby College Waterville, ME | | Webinar #19 - June 2013 Monitoring the Earth's Climate Deke Arndt NOAA/National Climatic Data Center Asheville, NC | | | | Webinar #20 - July 2013 Rainwater Harvesting - Catching and Using It Billy Kniffen American Rainwater Catchment Systems Association (ARCSA) Menard, TX | | Webinar #21 - August 2013 Atlantic basin seasonal hurricane prediction and the forecast for the 2013 Atlantic hurricane season Phil Klotzbach Colorado State University Fort Collins, CO | | | | Webinar #22 - September 2013 The Hundred Hunt for the Red Sprite Walt Lyons FMA Research, Inc. Fort Collins, CO | | Webinar #23 - October 2013 Meteorological Instruments -- Everything you wanted to know, but were afraid to ask! Stephen Burt Univ. of Reading Reading, UK | | | | Webinar #24 - November 2013 Weather Modification: Does the seeding of clouds enhance precipitation? An old question revisited Bart Geerts Univ. of Wyoming Laramie, WY | | SPECIAL WEBINAR - November 2013 "A Review of Significant Weather Events Occurring in 2013" Greg Carbin NOAA/Storm Prediction Center Norman, OK | | | | Webinar #25 - December 2013 Climate Change, Ecology, and Disease Emergence – A Public Health Perspective Ben Beard NCEZID Centers for Disease Control Fort Collins, CO | | |
SEASON ONE -- Webinars 2011 - 2012
| | | Webinar #1 - December 2011 Snow, love it , hate it . . . it still falls on us all! David Robinson, Rutgers Univ., Nolan Doesken, Colorado State Univ.
| | Webinar #2 - January 2012 Remote sensing: How weather satellites sense the earth Arunas Kuciauskas Naval Research Laboratory Monterrey, CA |
| | | Webinar #3 - February 2012 Who Uses Weather and Climate Data and How Do They Do It? Steve Hilberg Midwest Regional Climate Center (Retired) Champaign, IL | | Webinar #4 - March 2012 Understanding and Identifying Clouds Tom Schlatter NOAA/Earth System Research Laboratory Boulder, CO
| | | | Webinar #5 - April 2012 Flash Floods: It's More Than a Bunch of Rain Matt Kelsch UCAR/COMET Boulder, CO | | Webinar #6 - May 2012 Lightning and Its Impacts Ronald L. Holle Holle Meteorology & Photography Oro Valley, AZ | | | | Webinar #7 - June 2012 Hurricane Analysis and Prediction at the National Hurricane Center Chris Landsea NOAA/NWS/National Hurricane Center Miami, FL | | Webinar #8 - July 2012 Wind and Wildfire - A Dangerous Combination Liz Page UCAR/COMET Boulder, CO | | | | Webinar #9 - August 2012 Extreme Rainfall, How We Analyze It and How The Data is Used Bill Kappel Applied Weather Associates Monument, CO | | Webinar #10 - September 2012 So You Want to Become a Meteorologist? Dave Changnon Northern Illinois University DeKalb, IL | | | | Webinar #11 - October 2012 When Howling Wolves Greet the Northern Lights Jan Curtis USDA/NRCS Portland, OR | | Webinar #12 - November 2012 Weather Optics - "There are more 'bows' in the sky than just rainbows" Grant Goodge Earth Resources Technology, Inc. Laurel, MD | | | | Webinar #13 - December 2012 Historic Winter Season Weather Events : What's the best of the worst..... Paul Kocin NOAA/NWS/Hydrologic Prediction Center College Park, MD
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