Tornado TracksThis feature layer, utilizing data from the National Oceanic and Atmospheric Administration (NOAA), displays tornadoes in the United States, Puerto Rico and U.S. Virgin Islands between 1950 and 2024. A tornado track shows the route of a tornado. Per NOAA, "A tornado is a narrow, violently rotating column of air that extends from a thunderstorm to the ground. Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris. Tornadoes can be among the most violent phenomena of all atmospheric storms we experience. The most destructive tornadoes occur from supercells, which are rotating thunderstorms with a well-defined radar circulation called a mesocyclone. (Supercells can also produce damaging hail, severe non-tornadic winds, frequent lightning, and flash floods.)"EF-5 Tornado Track (May 3, 1999) near Oklahoma City, OklahomaData currency: December 30, 2024Data source: Storm Prediction CenterData modifications: Added field "Date_Calc"For more information: Severe Weather 101 - Tornadoes; NSSL Research: TornadoesSupport documentation: SPC Tornado, Hail, and Wind Database Format SpecificationFor feedback, please contact: ArcGIScomNationalMaps@esri.comNational Oceanic and Atmospheric AdministrationPer NOAA, its mission is "To understand and predict changes in climate, weather, ocean, and coasts, to share that knowledge and information with others, and to conserve and manage coastal and marine ecosystems and resources."

This map layer shows tornado tracksin the United States, Puerto Rico, and the U.S. Virgin Islands, from 1950 to 2013. Statistical data were obtained from the National Weather Service, Storm Prediction Center (SPC).

Map displaying total tornadoes by county across the state of Tennessee from 1950 to present. This file may not always reflect the current count across the state but will be updated periodically to ensure it remains as updated as possible.For more information, please reach out to sam.shamburger@noaa.gov or sr-ohx.webmaster@noaa.gov.

Historical tornado records for Madison County, Alabama from 1950 to present.

This dataset represents tornado tracks in the United States, Puerto Rico, and the U.S. Virgin Islands, from 1950 to 2013. Statistical data were obtained from the National Weather Service, Storm Prediction Center (SPC).

This historical static map of tornado tracks in Alabama documents the historic tornado outbreak that occurred on April 27, 2011.

Historical tornado records for Missouri from 1950 to present.

Historical tornado records for Virginia from 1950 to present.

Tornado paths and starting/touchdown points in Oakland County, Michigan circa 1953-2015. Data provided by NOAA, OCIT, and Matt Malone of Farmington Hills GIS. Originally published as April 2017 Map of the Month

This map depicts tornadoes in Tennessee between 1950 and 2017. The data is from the National Weather Service. The data is currently symbolized based off of magnitude but can be changed to other attributes like injuries, fatalities, or crop losses.

This is a database of tornadoes that have affected the Huntsville Forecast area this year. National Weather Service Storm Survey information regarding the tornadoes that occurred so far in 2024 within the NWS Huntsville County Warning Area (CWA). Included are storm survey damage points with pictures where available, tornado damage paths, and estimated damage swath information where applicable. ALL DATA SHOULD BE CONSIDERED PRELIMINARY.

Historical tornado records for Montana from 1950 to present.

Historical tornado records for Limestone County, Alabama from 1950 to present.

Historical tornado records for Philadelphia County, Pennsylvania from 1950 to present.

Historical tornado records for Iowa from 1950 to present.

Description:This polygon feature layer represents tornado risk zones across the United States, derived from the ASCE 7-22 Hazard Tool published by the American Society of Civil Engineers (ASCE). The data is based on the ASCE 7-22 Standard, which includes updated criteria for structural design considering tornado hazards. This feature layer is also part of the ASCE Hazard Tool Recreation in Experience Builder.The polygons define areas with differing levels of tornado intensity risk, determined through historical tornado track data and probabilistic modeling. Each zone corresponds to a specific design-level tornado wind speed (in miles per hour), which engineers use to design critical and essential facilities.Data Source:This dataset is sourced from the ASCE 7-22 Hazard Tool and is accessible via the ASCE ArcGIS REST Service:https://gis.asce.org/arcgis/rest/services/ASCE722Units:Design-level tornado wind speeds are provided in miles per hour (mph).Usage Notes:This data is intended for planning and structural design applications, particularly for essential facilities and structures requiring enhanced performance under extreme wind events. Users should refer to the official ASCE 7-22 documentation and consult with licensed engineers for code-compliant design. Local conditions may necessitate additional site-specific evaluation.Credits:American Society of Civil Engineers (ASCE)

Historical tornado records for Delaware from 1950 to present.

This map contains continuously updated U.S. tornado reports, wind storm reports and hail storm reports. Click each feature to receive information about the specific location and read a short description about the issue. Now contains ALL available Incident Report types, for a total of 15, not just Hail; Wind; and Tornados.See new layer for details or Feature Layer Item with exclusive Past 24-Hour ALL Storm Reports Layer. Each layer is updated 4 times hourly from data provided by NOAA’s National Weather Service Storm Prediction Center. A full archive of storm events can be accessed from the NOAA National Centers for Environmental Information. SourceNOAA Storm Prediction Center https://www.spc.noaa.gov/climo/reportsNOAA ALL Storm Reports layer https://www.spc.noaa.gov/exper/reports Sample DataSee Sample Layer Item for sample data during inactive periods! Update FrequencyThe service is updated every 15 minutes using the Aggregated Live Feeds Methodology Area CoveredCONUS (Contiguous United States) What can you do with this layer? This map service is suitable for data discovery and visualization.Change the symbology of each layer using single or bi-variate smart mapping. For instance, use size or color to indicate the intensity of a tornado.Click each feature to receive information about the specific location and read a short description about the issue.Query the attributes to show only specific event types or locations. RevisionsAug 10, 2021: Updated Classic Layers to use new Symbols. Corrected Layer Order Presentation. Updated Thumbnail.Aug 8, 2021: Update to layer-popups, correcting link URLs. Expanded length of 'Comment' fields to 1kb of text. New Layer added that includes ALL available Incident Types and Age in 'Hours Old'. This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency.If you would like to be alerted to potential issues or simply see when this service will update next, please visit our Live Feed Status Page.

Historical tornado records for Idaho from 1950 to present.