PPT-Thunderstorms

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. Atmospheric Research 51 1999 245265 The behavior of total lightning activity in severe Florida thunderstorms Earle Williams a Bob Boldi Anne Matlin Mark Weber Steve Hodanish Dave Sharp Steve Goodman Ravi Raghavan Summer thunderstorms are not a rarity and dont garner a lot of media attention or make worldwide headlines like the storm on Jul 8 th did This thunder storm made headlines because it broke the record for the amount of rainfall received in Toronto in 1 of 7 College of DuPage Meteorology Thunderstorms There are three types of thunderstorms: single - cell (or air mass) multicell (cluster or squall line) supercell Although the natural environment Liu et al. 2010. Review By: . Gus . Alaka. and Doug . Stolz. 20 February 2014. ATS 780. Background. C. T. R. Wilson’s Hypotheses: . Thunderstorms . AND. electrified shower clouds are the “batteries” of the global DC electrical circuit. Adopted (with permission) and later tested by F. Whipple.. Scattered showers with isolated thunderstorms through mid-evening.. Brief and generally light rain will accompany the showers and storms.. Gusty winds are possible…with peak gusts mostly under 35 mph.. B. Barrett – SO441 . Synoptic Meteorology. A severe thunderstorm near Lusk, WY 18 May 2014. Two basic ingredients for severe thunderstorms. Good buoyancy . Provides strong lift. Wind shear. Keeps warm, buoyant updrafts separate from cold, rainy downdrafts. e thunderstorms? SevereThunderstorm All thunderstorms are dangerous.Every thunderstorm produces lightning, which kills more peopleeach year than tornadoes. Heavyrain from thunderstorms can lead to fl 2000 thunderstorms can be in progress on earth at any one second There are over 100 lightning discharges to earth every second The chance of being hit by lightning in the UK is 1 in 14 million whi What is Severe Weather?. Three types of severe weather are possible in spring and summer in Kentucky:. thunderstorms. flooding. tornadoes. Weather is considered severe when weather conditions might cause injury or death.. Name. Teacher. http://www.factmonster.com/ipka/A0772916.html. Lightning. Lightning results from the ….. Most lightning occurs within the ….. The average flash of lightning could turn on a ___________ bulb for more than ________ months.. http://www.accuweather.com/en/us/national/severe-weather-maps. Thunderstorms. Thunderstorms: Some Key Facts. Produced by cumulonimbus clouds and are accompanied by lightning and thunder.. Occurs when the atmosphere becomes unstable—when a vertically displaced air parcel becomes buoyant and rises on its own.. What are thunderstorms???. A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing strong winds, heavy rain and sometimes hail.. WEATHER PHENOMENON. They have strong winds, heavy rain, lightning, and thunder.. How to tell if a storm is far away:. If you hear the thunder at the same time as you see the lightning, the storm is right above you.. If you see the lightning and then hear the thunder, the storm is farther away from you.. Cumulus Stage :. . The cumulus stage is marked by updrafts only. . These updrafts can reach values of up to 3,000 feet per minute and cause the cloud to build rapidly upwards, carrying super cooled water droplets well above the freezing level. .