PPT-Lightning

Thunderstorm structure Thunderstorms are classified into four major types namely the supercell squall line multicell single cell The strongest type is called the supercell which can be as wide as 24 kilometers . Most of those discharges are cloudtocloud but about 30 end up as the cloudtoground discharge that we are most familiar with There are a number of websites that describe the atmospheric electrical discharge that we know of as lightning but the averag Facts about lightning. 80% of lightning is from cloud-to-cloud. . Only 20% strikes the ground.. Primarily in mature cumulonimbus clouds. . More frequent at higher altitudes.. Lightning always produces thunder-however you can’t always here it. . 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. 2015 Grade 8. Referee . Recertification . If . any . of the . 3 things below happens, . the referee should . immediately. suspend the game. .. If thunder is heard. If lightning is seen. . If lightning detector is sounded . Edgar Hernandez. Geography 1700 – Natural Disasters . Source: "We Need Your Help!" NOAA Study Finds Fishing Tops U.S. Lightning Death Activities. . N.p. ., . n.d.. Web. 04 Mar. 2015.. The lightning lifecycle. Supercell. Tornado 5 . to 10 miles northwest . of Cheyenne. By Rob Cox (NWS Cheyenne) . July 29, 2013 @ ~6pm. Photo Courtesy Steve . Apfel. Tornado . ~5 to 10 . miles Northwest of Cheyenne. 0.5 deg. Z ~15 min prior to Tornado. Christopher J. Schultz. 1. , Lawrence . D. . Carey. 2. , Walter A. Petersen. 3. , Daniel Cecil. 2. , Monte Bateman. 4. , Steven Goodman. 5. , Geoffrey Stano. 6. , Valliappa Lakshmanan. 7. 1 - Department of Atmospheric Science, . Intracloud: most frequent (can also have cloud to cloud). Cloud to ground. Air discharge: from charged region to air. Intercloud. Types of Lightning. Bolt from Blue. Spider. Cloud-to-Air. Intracloud & Cloud-to-Ground. 23 July 2015. Sources. Three-part QST article. Lightning Protection for the Amateur Radio Station. Ron Block KB2UYT. http://www.arrl.org/lightning-protection. . http://www.arrl.org/files/file/Technology/tis/info/pdf/0206056.pdf. A PowerPoint presentation by . Zach . Tobash. Who was Ben Franklin?. Ben Franklin was creative and from a very young age was interested in electricity and storms. . His . interest began during a show where he saw tricks and his research lead . Lightning and Severe Weather: A Comparison between Total and Cloud-to-Ground Lightning Trends Authors: Christopher J Schultz, Walter A. Petersen, and Lawrence D. Carey Published: Spring 2011 Introduction Lightning NOx measurements during and after DC3 Harold Peterson: USRA Arastoo Biazar , Mike Newchurch , Wesley Cantrell: UAH GLM Science Meeting, Huntsville, AL September 19, 2012 Motivation Lightning 1. Near uniform spatial resolution of approximately 10 km.. . Coverage up to 52 deg latitude.. . 70-90% flash detection day and night over the Americas and adjacent ocean regions.. . < 20 sec product latency. In US, 42 fatalities per year; 10 times as many injuries from strikes. Of all deaths, about 15 % occur in organized sports; 25-30 % in recreational activities. Areas of greatest incidence in US. Gulf states, Ohio River Valley, front range of Rocky Mountains, and parts of Southwest.