Slide 1 STEPS Severe Thunderstorm and Precipitation Studies May-July 2000 Slide 2 STEPS Objectives To gain a better understanding of interactions between kinematics, precipitation…

Slide 1 Thunderstorms Conditions required: 1. Conditional instability 2. Trigger Mechanism (eg. front, sea-breeze front, mountains, localized zones of excess surface heating,…

Slide 1 The August 2001 Western US Wildfire Episode 44 sites in the WRAP region experienced the worst 20% day on August 17. Most of August experienced heavy OC in the west.…

Lightning in Tornadic Storms' A Review DONALD R. MACGORMAN National Severe Storms Laboratory, NOAA, Norman, Oklahoma 73069 1. INTRODUCTION There have been many reports…

Slide 1 On the relationship of in-cloud convective turbulence and total lightning Wiebke Deierling, John Williams, Sarah Al-Momar, Bob Sharman, Matthias Steiner and Cathy…

Slide 1 Lightning Slide 2 Review: Different types of precipitation Depends on atmospheric temperature and winds Snow Rain Sleet Freezing rain Graupel/hail Snow Rain Sleet…

Thunderstorms & Tornadoes What are the stages of development in a Thunderstorm? Three stages have been identified in ordinary thunderstorms: Cumulus stage: an unstable…

Surface Observations Collect information for synoptic-scale weather Most surface obs are automated (e.g., ASOS) Also mesoscale networks (mesonet) such as Oklahoma and West…

Vocabulary Quiz-Thursday Charging by Friction and Contact Charging by Friction and Contact When electrons are transferred by one material rubbing against the other Van de…

Overshooting Convective Cloud Top Detection A GOES-R Future Capability Product 1995-2011 GOES-East (-8/-12/-13) OT Detections at Full Spatial and Temporal Resolution, 0.25…