Severe Weather Data Inventory (SWDI)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 2006-01-01T00:00:00.000+00:00

The Severe Weather Data Inventory (SWDI) is an integrated database of severe weather records for the United States. SWDI enables a user to search through a variety of source data sets in the NCDC (now NCEI) archive in order to find records covering a particular time period and geographic region, and then to download the results of the search in a variety of formats. The formats currently supported are Shapefile (for GIS), KMZ (for Google Earth), CSV (comma-separated), and XML. The current data layers in SWDI are: Storm Cells from NEXRAD (Level-III Storm Structure Product); Hail Signatures from NEXRAD (Level-III Hail Product); Mesocyclone Signatures from NEXRAD (Level-III Meso Product); Digital Mesocyclone Detection Algorithm from NEXRAD (Level-III MDA Product); Tornado Signature from NEXRAD (Level-III TVS Product); Preliminary Local Storm Reports from the NOAA National Weather Service; Lightning Strikes from Vaisala NLDN.

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Earth Science Services > Data Analysis And Visualization > Geographic Information Systems > Web-Based Geographic Information Systems Earth Science Services > Data Analysis And Visualization > Geographic Information Systems > Desktop Geographic Information Systems Earth Science Services > Data Analysis And Visualization > Geographic Information Systems Earth Science Services > Environmental Advisories > Hydrological Advisories > Floods Earth Science Services > Environmental Advisories > Weather/Climate Advisories > Severe Weather Earth Science Services > Reference And Information Services > Subscription Services DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce

Complete Metadata

describedByType	application/octet-steam
identifier	gov.noaa.ncdc:C00773
issued	2006-01-01T00:00:00.000+00:00
language	[]
references	[ "http://ams.confex.com/ams/90annual/techprogram/paper_159679.htm" ]
spatial	-65.0,11.0,170.0,72.0
temporal	1995-01-01T00:00:00+00:00/1995-01-01T00:00:00+00:00

Location