A database of verified tornado occurrences across Canada has been created covering the 30-year period from 1980 to 2009. The data are stored in a Microsoft Excel spreadsheet, including fields for date, time, location, Fujita Rating (intensity), path information, fatalities, injuries, and damage costs. In cases where no data were available, values in the database have been left blank. 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 database has also been used to produce PNG images and an interactive KML file that can be viewed using Google Earth.

Comprehensive database of EF5 tornadoes from 1950 to present. EF5 tornadoes feature incredible damage with winds over 200 mph, causing complete destruction of strong frame homes and incredible phenomena.

Detailed information, maps, and pictures from significant Arkansas tornadoes and tornado outbreaks utilizing the Damage Assessment Toolkit (DAT) database are provided here. Scroll down to view all tornado events or use the navigation above to jump to a particular tornado event. Note that this is NOT a comprehensive database of all Arkansas tornado events, but serves to highlight the significant events in recorded history, by not just the North Little Rock Forecast Office, but all NWS Offices who serve portions of the state of Arkansas, including NWS Tulsa, NWS Memphis, NWS Shreveport, and NWS Jackson.This database documents several Arkansas significant events within the DAT database, but not all events are represented. Map features including damage points, tracks, and swaths are interactive, and can be clicked within the map to see details, including damage pictures for some locations.

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.

Comprehensive database of EF1 tornadoes from 1950 to present. EF1 tornadoes feature moderate damage with winds of 86-110 mph, causing moderate damage to mobile homes, roofs, and moving automobiles.

Comprehensive database of EF3 tornadoes from 1950 to present. EF3 tornadoes feature severe damage with winds of 136-165 mph, causing severe damage including roofs and walls torn off well-constructed homes.

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 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 2020 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.

Storm Data is provided by the National Weather Service (NWS) and contain statistics on personal injuries and damage estimates. Storm Data covers the United States of America. The data began as early as 1950 through to the present, updated monthly with up to a 120 day delay possible. NCDC Storm Event database allows users to find various types of storms recorded by county, or use other selection criteria as desired. The data contain a chronological listing, by state, of hurricanes, tornadoes, thunderstorms, hail, floods, drought conditions, lightning, high winds, snow, temperature extremes and other weather phenomena.

Context

This data set contains the number of confirmed tornadoes for each state for each year and their responding affects.

Content

Current table includes number of confirmed tornadoes in each state for each year from 1951 to 2019. Future datasets will be related to Fujita/Enhanced Fujita rank, total damage (reported and inflation corrected), and fatalities/injuries. Data is from National Centers for Environmental Information's Storm Events Database.

Inspiration

I am curious about the trend of sever weather occurring in the United States over time. This started with tornadic events but will evolve to severe thunderstorm and hail events as well.

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.

This tornado database includes the tornado information in contiguous China from 2017 to 2020.

These data include all tropical cyclone tornado reports used in Paredes et al. (2021) plus an additional year (e.g., 2020). These data will not be updated regularly. For the latest version, users should refer to https://www.spc.noaa.gov/misc/edwards/TCTOR/ or contact roger.edwards@noaa.gov.

Each specific tropical cyclone tornado record has been extracted from the broader Storm Prediction Center tornado database, for all Atlantic and Gulf of Mexico tropical cyclones to affect the continental United States from 1995–2020. The tornado records were analyzed individually to determine their presence within the circulation envelope of either a classified or remnant tropical cyclone, without regard to fixed radii from tropical cyclone center, inland extent, temporal cutoffs before or after landfall, or other such arbitrary thresholds that may either exclude tropical cyclone events or include non-tropical cyclone tornadoes unnecessarily. Unlike other climatologies previously published in the literature, the chosen time period for this examination essentially covers only the full national deployment of the WSR-88D radar network in the United States. This permits consistent comparisons of a very large sample size of tropical cyclone tornado events (>1600) during the era of modernized National Weather Service warning and verification practices.

A database of verified tornado occurrences 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.For more information visit Canadian National Tornado Database: Verified Events (1980-2009) Thumbnail: The Elie F5 Tornado, taken by Portager Violet Enns in 2007Base de données nationale sur les tornades du Canada : Événements vérifiés (1980-2009)Une base de données sur les tornades vérifiées dans l’ensemble du Canada a été créée afin de couvrir une période de 30 ans, de 1980 à 2009. Les données sur les tornades ont subi un certain nombre de vérifications à des fins de contrôle de la qualité et représentent les plus récentes connaissances sur les tornades qui ont eu lieu au cours de cette période. Cependant, des mises à jour peuvent être effectuées dans la base de données à mesure que des renseignements nouveaux ou plus à jour sont disponibles. Les données ont été converties dans un fichier de cartographie géoréférencé qui peut être consulté et manipulé au moyen d’un logiciel de système d’information géographique (SIG).

Dataset

This dataset was created by LiamEdwardsTX

Released under U.S. Government Works

Contents

A map used in the Hazard Risk Assessment Maps app and the Hazard Explorer app to visualize tornado and strong wind hazards.Several layers from the Living Atlas are included in the map by default: the National Risk Index symbolized by Tornado – Hazard Type Risk Index Rating, Tornado Tracks (filtered from 2014 on), and Windstorm Paths in the U.S (filtered from 2014 on). Enable visibility for the most appropriate layers. Use this map to understand tornado and strong wind hazards in your community.If you would like to use additional data to visualize the tornado and strong wind risk assessment, examples would include locations of storm shelters or safe room sites, wind speed maps, building windspeed susceptibility studies, and historical data from the NOAA/NWS Storm Prediction Center Tornado database.

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.

• Database of tornado activity from 1950 to 2015
  • Created by National Weather service and available at http://www.spc.noaa.gov/gis/svrgis/
  • Enhance understanding of where tornados happen, indicators of damage, and weather conditions associated with tornados (temp/El Nino, La Nina)

Metadata available at http://www.spc.noaa.gov/wcm/data/SPC_severe_database_description.pdf

Introduction

Tornadoes frequently occur in the United States, resulting in vast destruction and often injuries and death. They occur more often in the United States and Canada than in other countries with the most tornado-prone regions in the US being the central and southeastern states along a corridor sometimes called "Tornado Alley."

A tornado's destructiveness is derived largely from the wind speed within it. For this reason, meteoroligists rate tornadoes using a scale based on wind speed. In the US, tornadoes were originally rated on the Fujita Scale, and since February 2007 on the Enhanced Fujita Scale. The two scales cover slightly different speed ranges, but for practical purposes are the same. The enhanced Fujita scale is shown below.

The Enhance Fujita Scale

Origin

This dataset was derived from a dataset produced by NOAA's Storm Prediction Center. The primary changes made to create this dataset were the deletion of some columns, change of some data types, and sorting by date.

Column Definitions

• yr - 4-digit year
• mn - Month (1-12)
• dy - Day of month
• date - Datetime object (e.g. 1950-01-01)
• st - State where tornado originated; 2-digit abbreviation
• mag - F rating thru Jan 2007; EF rating after Jan 2007 (-9 if unknown rating)
• inj - Number of injuries
• fat - Number of fatalities
• slat - Starting latitude in decimal degrees
• slon - Starting longitude in decimal degrees
• elat - Ending latitude in decimal degrees (value of 0 if missing)
• elon - Ending longitude in decimal degrees (value of 0 if missing)
• len - Length of track in miles
• wid - Width in yards

References

NOAA Storm Prediction Center WIkipedia - Tornado Wikipedia - Fujita Scale Wikipedia - Enhanced Fujita Scale

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.