PPT-Weathering The Storm: Bringing Clarity To The Unknowns Of Severe Thunderstorm Modeling

Prepared by Impact Forecasting March 2015 Aon Benfield The worlds leading reinsurance intermediary Experts in utilizing catastrophe models annually analyzing 70 of the Homeowners market. Daniel B. Thompson, Lance F. Bosart and . Daniel Keyser. Department of Atmospheric and Environmental Sciences. University at Albany/SUNY, Albany, NY 12222. Thomas A. Wasula. NOAA/NWS, Albany, NY. Matthew Kramar. . and their Association with Severe Thunderstorms. Daniel B. Thompson, Lance F. Bosart and . Daniel Keyser. Department of Atmospheric and Environmental Sciences. University at Albany/SUNY, Albany, NY 12222. RITT Presentation. Tom Filiaggi (NWS – MDL). 11/28/12. Evaluation of “. 2. σ. ” as Predictor for Severe Weather. Agenda. Total Lightning. Lightning Mapping Arrays (LMAs). Previous Research Summary. a brief review. the distinction between the 3 storm types is largely controlled by . wind shear. 8.1 The role of wind shear. bulk Richardson number:. weak shear. strong shear. Fig. 8.1. Fig. 8.2. 8.1 The role of wind shear. A Scientastic presentation. Storm Chaser’s Cli. p. http://. www.discovery.com/tv-shows/storm-chasers/videos/what-is-the-dominator.htm. . Discussion Question – . Severe Thunderstorms. C. apable . NCEP . Production Suite Review. December . 7, 2015. Steven . Weiss, Russell Schneider, Israel . Jirak. , Chris . Melick. , Andy Dean, and Patrick Marsh. Storm Prediction Center, Norman, OK. National Weather Center. Unit 4 – Atmospheric Processes. Necessary Atmospheric Conditions. Water . vapour. must be available in the lower atmosphere to feed clouds and precipitation as the storm forms . A temperature gradient must exist so that rising air cools off rapidly with height. THUNDERSTORMS. (Chapter 14). ORDINARY (“AIR MASS”) THUNDERSTORM LIFE CYCLE. SEVERE THUNDERSTORM. 1 inch diameter hail, or. 50 knot surface winds, or. tornadoes. SEVERE THUNDERSTORM. SEVERE THUNDERSTORM. Lecture 17: Thunderstorms in the Pacific. MET 102 Pacific Climates and Cultures. Discussion Questions – Ahrens 2015 . What are the three basic ingredients Thunderstorms need to form? Do the Pacific Islands satisfy these requirements?. From . www.spc.noaa.gov/faq/#4.2. , SPC defines a thunderstorm as severe if it has one of more of the following:. a. Hail at least 1 inch in diameter (quarter size). b. Wind gusts to 58 mph or greater (50 knots). A violent disturbance in the atmosphere.. What is a storm? . . Involves sudden changes in air pressure. Cause rapid air movement. Conditions that bring one . kind of storm in one . area often cause other kinds of storms in the same area. Lightning Jump Evaluation RITT Presentation Tom Filiaggi (NWS – MDL) 12/18/13 Reduction of FAR? Agenda Team Members Total Lightning Lightning Mapping Arrays (LMAs) Previous Research Summary Current Project F or some of our canine friends, a thunderstorm can be a highly traumatic event. Dogs with thunderstorm phobia can engage in a variety of behaviors including:  Hiding under beds or furniture, or in ORDINARY (“AIR MASS”) THUNDERSTORM LIFE CYCLE. SEVERE THUNDERSTORM. 1 inch diameter hail, or. 50 knot surface winds, or. tornadoes. SEVERE THUNDERSTORM. SEVERE THUNDERSTORM. SHELF CLOUD. SHELF CLOUD.