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."

Homeland Infrastructure Foundation-Level Data (HIFLD) geospatial data sets containing information on Historical Tornado Tracks.

Currently filtered for Storm Date is after 12/1/2023Purpose: This is a feature layer of tornado swaths for the NWS Damage Assessment Toolkit.The National Weather Service (NWS) Damage Assessment Toolkit (DAT) has been utilized experimentally since 2009 to assess damage following tornadoes and convective wind events. The DAT is a GIS-based framework for collecting, storing, and analyzing damage survey data, utilizing the Enhanced Fujita (EF) scale for the classification of damage. Data collected from individual locations via mobile device are transmitted to a central geospatial database where they are quality controlled and analyzed to assign the official EF rating. In addition to the individual point, the data are analyzed to generate track centerlines and damage swaths. High resolution satellite imagery and radar data, through partnership with the NASA Short-term Prediction Research and Transition Center, are also available to aid in the analysis. The subsequent dataset is then made available through a web-based graphical interface and GIS services.Here is the full REST service: https://services.dat.noaa.gov/arcgis/rest/services/nws_damageassessmenttoolkitGeoplatform website: https://communities.geoplatform.gov/disasters/noaa-damage-assessment-toolkit-dat/More InformationWelcome to the National Weather Service Damage Assessment Toolkit. Data on this interface is collected during NWS Post-Event Damage Assessments. While the data has been quality controlled, it is still considered preliminary. Official statistics for severe weather events can be found in the Storm Data publication, available from the National Centers for Environmental Information (NCEI) at: https://www.ncdc.noaa.gov/IPS/sd/sd.html Questions regarding this data can be addressed to: parks.camp@noaa.gov.

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 2022. 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, 2022Data source: Storm Prediction CenterData modifications: Added fields Calculated Month and DateFor 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 dataset represents data that was compiled from the United States severe report database (tornadoes 1950-2015).

This map layer shows tornado tracks in CONUS, Alaska, Hawaii and Puerto Rico, from 1950 to 2015. Statistical data were obtained from the National Weather Service, Storm Prediction Center (SPC).

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 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 2025 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.

A database of verified tornado tracks across Canada has been created covering the 30-year period from 1980 to 2009. The tornado data have undergone a number of quality control checks and represent the most current knowledge of past tornado events over the period. However, updates may be made to the database as new or more accurate information becomes available. The data have been converted to a geo-referenced mapping file that can be viewed and manipulated using GIS software.

The National Weather Service (NWS) Storm Prediction Center (SPC) routinely collects reports of severe weather and compiles them with public access from the database called SeverePlot (Hart and Janish 1999) with a Graphic Information System (GIS). The composite SVRGIS information is made available to the public primarily in .zip files of approximately 50MB size. The files located at the access point contain track information regarding known tornados during the period 1950 to 2006. Although available to all, the data provided may be of particular value to weather professionals and students of meteorological sciences. An instructional manual is provided on how to build and develop a basic severe weather report GIS database in ArcGis and is located at the technical documentation site contained in this metadata catalog.

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This interactive map exclusively utilizes the damage path data of tornadoes and landspouts that impacted Puerto Rico in the year 2023, offering an in-depth visualization of tornado trajectories. Delve into the geographical representation of tornado paths to gain insights into their courses, lengths, and areas of impact. Tailored to showcase the specific paths of tornadoes in 2023, this Webmap serves as an informative tool for understanding the spatial dynamics and geographical nuances of tornado events within Puerto Rico during that year.

Tornado tracks for the conterminous United States downloaded from NOAA on January 2012

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.

This map layer shows tornado tracks in the United States, Puerto Rico, and the U.S. Virgin Islands, from 1950 to 2008. Statistical data were obtained from the National Weather Service, Storm Prediction Center (SPC). The SPC data originate from the Severe Thunderstorm Database and the National Oceanic and Atmospheric Administration (NOAA) Storm Data publication.

Although tornadoes can occur throughout the year, prime time for twisters in the U.S. is spring and early summer. Larger symbols show more violent tornadoes. Zoom into the map to see approximate tornado tracks.

Tornadoes, sometimes called twisters, are high-speed columns of rotating air connecting a thunderstorm to the ground. These storms vary greatly in size and strength, and are difficult for scientists to predict. The average tornado damage path is about one and a half to three kilometers (one to two miles) with a width of 45 meters (50 yards); however, some paths can stretch more than 160 kilometers (100 miles) and have widths greater than three kilometers (two miles).

Tornado paths are so small and unpredictable, local National Weather Service (NWS) forecast offices usually only have about 14 minutes to alert residents with a tornado warning before the storm reaches them. Because of this, the NWS issues tornado watches over a large area to warn residents a tornado could form in their vicinity hours before one can touch the ground.

Tornadoes only form when a thunderstorm has a certain combination of winds. As winds at varying speeds and directions cause rising air to start spinning, warmer air continues to rise and cooler air begins to sink to the ground. Once there are enough rising and sinking gusts of wind, the air near the ground begins to rotate. The rotating air throughout the tornado eventually speeds up to spin around one axis and begins to move horizontally across the land. Most tornadoes originate from supercell thunderstorms in which there are drastic differences in air temperatures and wind speeds, but not all supercell thunderstorms produce tornadoes.

Tornadoes occur in many parts of the world, including Australia, Europe, Africa, South America, and Asia; however, about 75 percent of the world’s known tornadoes have formed in the United States. About 1,200 tornadoes hit the U.S. every year. Although tornado season refers to the time of year when the United States sees the most tornadoes, peak tornado season varies across regions of the U.S. The southern Plains experience peak tornado season from May to early June, the Gulf coast from March to April, and the northern Plains and upper Midwest see the most tornadoes in either June or July. Even though there are times of the year when tornadoes are most prominent, they can occur at any time given the right weather conditions.

To assess the wind speeds of a tornado, the NWS implemented the Enhanced Fujita Scale (EF Scale), a set of wind estimates based on the intensity of damage from structures in the path of the storm. Because buildings have varying structural integrity, the EF Scale incorporates 28 damage indicators, such as building type (for example, barn, school, motel, or shopping mall), structures (for example, gas station canopy, mobile home, or transmission line tower) and trees (for example, hardwood or softwood). These damage indicators are then given a damage rating between 1 and 8, in which 1 = no damage and 8 = completely destroyed. From the values given for each damage indicator, the NWS derives an EF number between 0 and 5 that estimates the overall intensity of the tornado.

EF-0: Gale winds with speeds between 105 and 137 kmph (65-85 mph) EF-1: Moderate winds with speeds between 138 and 177 kmph (86-110 mph) EF-2: Significant winds with speeds between 178 and 217 kmph (111-135 mph) EF-3: Severe winds with speeds between 218 and 266 kmph (136-165 mph) EF-4: Devastating winds with speeds between 267 and 322 kmph (166-200 mph) EF-5: Incredible winds with speeds over 322 kmph (200 mph)

Do you have tornadoes where you live? Learn How to Stay Safe from Tornadoes!

This map layer features U.S. tornado track data from the National Oceanic and Atmospheric Administration between 1980 and 2022. This very large dataset has been filtered to visualize large and violent tornado tracks from EF-3 to EF-5 tornadoes that occurred between 2000 and 2017.

Want to learn more about tornadoes? Check out Forces of Nature.

Average damage assessment for areas in tornado path.

Tornado Tracks and Info of June 5, 1916 in Arkansas produced by the National Weather Service in Little Rock, AR.

Tornado Warnings are issued to enable the public to get out of harm’s way and mitigate preventable loss. NWS forecasters issue approximately 2,900 Tornado Warnings per year, primarily between the Rockies and Appalachian Mountains. Tornado Warning statistics are based on a comparison of warnings issued and weather spotter observations of tornadoes and/or storm damage surveys from Weather Forecast Offices in the United States. Accuracy or probability of detection (POD) is the percentage of time a tornado actually occurred in an area that was covered by a tornado warning. The difference between the accuracy percentage figure and 100% represents the percentage of events occurring without warning. Most tornadoes cannot be visually tracked from beginning to end and post-storm damage surveying is the official method with which the NWS categorizes tornado characteristics (intensity, path length & width) but must rely on radar data to estimate the timing of the tornado track.

A layer showcasing the tornado tracks from the April 26, 2024 Tornado Outbreak across eastern Nebraska and western Iowa. This layer is utilized in many locations in our April 26, 2024 Arbor Day Tornado Outbreak StoryMap Collection. First, it is used in our April 26, 2024 Tornado Tracks map. The map is is used in our April 26, 2024 Overview StoryMap and our April 26, 2024 Tornadoes StoryMap. This layer is also used in our April 26, 2024 Stories Webmap used in the Our Stories Storymap showcasing stories from April 26, 2024. StoryMap Collection at https://noaa.maps.arcgis.com/home/item.html?id=e565fcecf22f49cd90e6a4a7ba69fb2bTornado Tracks Webmap: https://noaa.maps.arcgis.com/home/item.html?id=97353872c6cc49a4bf6c254053b643d7April 26, 2024 Overview: https://noaa.maps.arcgis.com/home/item.html?id=d7ce8d6ed5a546d58175551d7c7de72aApril 26, 2024 Tornadoes: https://noaa.maps.arcgis.com/home/item.html?id=6db00e8cc9974d5cbe6fc041fa80dc2bApril 26, 2024 Stories Webmap: https://noaa.maps.arcgis.com/home/item.html?id=722ebf168ada49ceb2ef0499343ec35fOur Stories StoryMap: https://noaa.maps.arcgis.com/home/item.html?id=e373e49f974c439eb3944d3508cfd4d4