The NOAA/CIMSS ProbSevere Model: Incorporation of Total Lightning and Validation

Author:

Cintineo John L.1,Pavolonis Michael J.2,Sieglaff Justin M.1,Lindsey Daniel T.3,Cronce Lee1,Gerth Jordan1,Rodenkirch Benjamin1,Brunner Jason1,Gravelle Chad14

Affiliation:

1. Cooperative Institute of Meteorological Satellite Studies, University of Wisconsin–Madison, Madison, Wisconsin

2. NOAA/NESDIS/Center for Satellite Applications and Research/Advanced Satellite Products Team, Madison, Wisconsin

3. NOAA/NESDIS/Center for Satellite Applications and Research/Regional and Mesoscale Meteorology Branch, Fort Collins, Colorado

4. NWS Operations Proving Ground, Kansas City, Missouri

Abstract

Abstract The empirical Probability of Severe (ProbSevere) model, developed by the National Oceanic and Atmospheric Administration (NOAA) and the Cooperative Institute for Meteorological Satellite Studies (CIMSS), automatically extracts information related to thunderstorm development from several data sources to produce timely, short-term, statistical forecasts of thunderstorm intensity. More specifically, ProbSevere utilizes short-term numerical weather prediction guidance (NWP), geostationary satellite, ground-based radar, and ground-based lightning data to determine the probability that convective storm cells will produce severe weather up to 90 min in the future. ProbSevere guidance, which updates approximately every 2 min, is available to National Weather Service (NWS) Weather Forecast Offices with very short latency. This paper focuses on the integration of ground-based lightning detection data into ProbSevere. In addition, a thorough validation analysis is presented. The validation analysis demonstrates that ProbSevere has slightly less skill compared to NWS severe weather warnings, but can offer greater lead time to initial hazards. Feedback from NWS users has been highly favorable, with most forecasters responding that ProbSevere increases confidence and lead time in numerous warning situations.

Funder

National Oceanic and Atmospheric Administration

Publisher

American Meteorological Society

Subject

Atmospheric Science

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