Active Hurricanes, Cyclones and Typhoons

This layer describes the observed path, forecast track, and intensity of tropical cyclone activity (hurricanes, typhoons, cyclones) from the National Hurricane Center (NHC) and Joint Typhoon Warning Center (JTWC) across the globe.

Hurricane tracks and positions provide information on where the storm has been, where it is currently located, and where it is predicted to go. Each storm location is depicted by the sustained wind speed, according to the Saffir-Simpson Scale. It should be noted that the Saffir-Simpson Scale only applies to hurricanes in the Atlantic and Eastern Pacific basins, however all storms are still symbolized using that classification for consistency.
Data Source Sample Data Update Frequency
  • The Aggregated Live Feeds methodology checks the Source for updates every 15 minutes. Tropical cyclones are normally issued every six hours at 5:00 AM EDT, 11:00 AM EDT, 5:00 PM EDT, and 11:00 PM EDT (or 4:00 AM EST, 10:00 AM EST, 4:00 PM EST, and 10:00 PM EST).
  • Public advisories for Eastern Pacific tropical cyclones are normally issued every six hours at 2:00 AM PDT, 8:00 AM PDT, 2:00 PM PDT, and 8:00 PM PDT (or 1:00 AM PST, 7:00 AM PST, 1:00 PM PST, and 7:00 PM PST).
  • Intermediate public advisories may be issued every 3 hours when coastal watches or warnings are in effect, and every 2 hours when coastal watches or warnings are in effect and land-based radars have identified a reliable storm center. Additionally, special public advisories may be issued at any time due to significant changes in warnings or in a cyclone. For the NHC data source you can subscribe to RSS Feeds.
  • North Pacific and North Indian Ocean tropical cyclone warnings are updated every 6 hours, and South Indian and South Pacific Ocean tropical cyclone warnings are routinely updated every 12 hours. Times are set to Zulu/UTC.
Scale/Resolution
  • The horizontal accuracy of these datasets is not stated but it is important to remember that tropical cyclone track forecasts are subject to error, and that the effects of a tropical cyclone can span many hundreds of miles from the center.
Area Covered
  • World
Glossary
  • Forecast location: Represents the official NHC forecast locations for the center of a tropical cyclone. Forecast center positions are given for projections valid 12, 24, 36, 48, 72, 96, and 120 hours after the forecast's nominal initial time. Click here for more information. Forecast points from the JTWC are valid 12, 24, 36, 48 and 72 hours after the forecast’s initial time.
  • Forecast track: This product aids in the visualization of an NHC official track forecast, the forecast points are connected by a red line. The track lines are not a forecast product, as such, the lines should not be interpreted as representing a specific forecast for the location of a tropical cyclone in between official forecast points. It is also important to remember that tropical cyclone track forecasts are subject to error, and that the effects of a tropical cyclone can span many hundreds of miles from the center. Click here for more information.
  • The Cone of Uncertainty: Cyclone paths are hard to predict with absolute certainty, especially days in advance. The cone represents the probable track of the center of a tropical cyclone and is formed by enclosing the area swept out by a set of circles along the forecast track (at 12, 24, 36 hours, etc). The size of each circle is scaled so that two-thirds of the historical official forecast errors over a 5-year sample fall within the circle. Based on forecasts over the previous 5 years, the entire track of a tropical cyclone can be expected to remain within the cone roughly 60-70% of the time. It is important to note that the area affected by a tropical cyclone can extend well beyond the confines of the cone enclosing the most likely track area of the center. Click here for more information. Now includes 'Danger Area' Polygons from JTWC, detailing US Navy Ship Avoidance Area when Wind speeds exceed 34 Knots!
  • Coastal Watch/Warning: Coastal areas are placed under watches and warnings depending on the proximity and intensity of the approaching storm.
    • Tropical Storm Watch is issued when a tropical cyclone containing winds of 34 to 63 knots (39 to 73 mph) or higher poses a possible threat, generally within 48 hours. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. The watch does not mean that tropical storm conditions will occur. It only means that these conditions are possible.
    • Tropical Storm Warning is issued when sustained winds of 34 to 63 knots (39 to 73 mph) or higher associated with a tropical cyclone are expected in 36 hours or less. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding.
    • Hurricane Watch is issued when a tropical cyclone containing winds of 64 knots (74 mph) or higher poses a possible threat, generally within 48 hours. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. The watch does not mean that hurricane conditions will occur. It only means that these conditions are possible.
    • Hurricane Warning is issued when sustained winds of 64 knots (74 mph) or higher associated with a tropical cyclone are expected in 36 hours or less. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. A hurricane warning can remain in effect when dangerously high water or a combination of dangerously high water and exceptionally high waves continue, even though winds may be less than hurricane force.
Revisions
  • Mar 13, 2025: Altered 'Forecast Error Cone' layer to include 'Danger Area' with updated symbology.
  • Nov 20, 2023: Added Event Label to 'Forecast Position' layer, showing arrival time and wind speed localized to user's location.
  • Mar 27, 2022: Added UID, Max_SS, Max_Wind, Max_Gust, and Max_Label fields to ForecastErrorCone layer.
This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency. Always refer to NOAA or JTWC sources for official guidance.
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!

Jeux de données disponibles au téléchargement

Informations supplémentaires

Champ Valeur
Dernière mise à jour mars 24, 2026, 21:07 (TU)
Créé mars 24, 2026, 21:07 (TU)
Domaine / Sujet
Domaine ou sujet du jeu de données catalogué.
Titre
Titre du jeu de données.
Active Hurricanes, Cyclones and Typhoons
Description
Une description du jeu de données.

This layer describes the observed path, forecast track, and intensity of tropical cyclone activity (hurricanes, typhoons, cyclones) from the National Hurricane Center (NHC) and Joint Typhoon Warning Center (JTWC) across the globe.

Hurricane tracks and positions provide information on where the storm has been, where it is currently located, and where it is predicted to go. Each storm location is depicted by the sustained wind speed, according to the Saffir-Simpson Scale. It should be noted that the Saffir-Simpson Scale only applies to hurricanes in the Atlantic and Eastern Pacific basins, however all storms are still symbolized using that classification for consistency.
Data Source Sample Data Update Frequency
  • The Aggregated Live Feeds methodology checks the Source for updates every 15 minutes. Tropical cyclones are normally issued every six hours at 5:00 AM EDT, 11:00 AM EDT, 5:00 PM EDT, and 11:00 PM EDT (or 4:00 AM EST, 10:00 AM EST, 4:00 PM EST, and 10:00 PM EST).
  • Public advisories for Eastern Pacific tropical cyclones are normally issued every six hours at 2:00 AM PDT, 8:00 AM PDT, 2:00 PM PDT, and 8:00 PM PDT (or 1:00 AM PST, 7:00 AM PST, 1:00 PM PST, and 7:00 PM PST).
  • Intermediate public advisories may be issued every 3 hours when coastal watches or warnings are in effect, and every 2 hours when coastal watches or warnings are in effect and land-based radars have identified a reliable storm center. Additionally, special public advisories may be issued at any time due to significant changes in warnings or in a cyclone. For the NHC data source you can subscribe to RSS Feeds.
  • North Pacific and North Indian Ocean tropical cyclone warnings are updated every 6 hours, and South Indian and South Pacific Ocean tropical cyclone warnings are routinely updated every 12 hours. Times are set to Zulu/UTC.
Scale/Resolution
  • The horizontal accuracy of these datasets is not stated but it is important to remember that tropical cyclone track forecasts are subject to error, and that the effects of a tropical cyclone can span many hundreds of miles from the center.
Area Covered
  • World
Glossary
  • Forecast location: Represents the official NHC forecast locations for the center of a tropical cyclone. Forecast center positions are given for projections valid 12, 24, 36, 48, 72, 96, and 120 hours after the forecast's nominal initial time. Click here for more information. Forecast points from the JTWC are valid 12, 24, 36, 48 and 72 hours after the forecast’s initial time.
  • Forecast track: This product aids in the visualization of an NHC official track forecast, the forecast points are connected by a red line. The track lines are not a forecast product, as such, the lines should not be interpreted as representing a specific forecast for the location of a tropical cyclone in between official forecast points. It is also important to remember that tropical cyclone track forecasts are subject to error, and that the effects of a tropical cyclone can span many hundreds of miles from the center. Click here for more information.
  • The Cone of Uncertainty: Cyclone paths are hard to predict with absolute certainty, especially days in advance. The cone represents the probable track of the center of a tropical cyclone and is formed by enclosing the area swept out by a set of circles along the forecast track (at 12, 24, 36 hours, etc). The size of each circle is scaled so that two-thirds of the historical official forecast errors over a 5-year sample fall within the circle. Based on forecasts over the previous 5 years, the entire track of a tropical cyclone can be expected to remain within the cone roughly 60-70% of the time. It is important to note that the area affected by a tropical cyclone can extend well beyond the confines of the cone enclosing the most likely track area of the center. Click here for more information. Now includes 'Danger Area' Polygons from JTWC, detailing US Navy Ship Avoidance Area when Wind speeds exceed 34 Knots!
  • Coastal Watch/Warning: Coastal areas are placed under watches and warnings depending on the proximity and intensity of the approaching storm.
    • Tropical Storm Watch is issued when a tropical cyclone containing winds of 34 to 63 knots (39 to 73 mph) or higher poses a possible threat, generally within 48 hours. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. The watch does not mean that tropical storm conditions will occur. It only means that these conditions are possible.
    • Tropical Storm Warning is issued when sustained winds of 34 to 63 knots (39 to 73 mph) or higher associated with a tropical cyclone are expected in 36 hours or less. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding.
    • Hurricane Watch is issued when a tropical cyclone containing winds of 64 knots (74 mph) or higher poses a possible threat, generally within 48 hours. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. The watch does not mean that hurricane conditions will occur. It only means that these conditions are possible.
    • Hurricane Warning is issued when sustained winds of 64 knots (74 mph) or higher associated with a tropical cyclone are expected in 36 hours or less. These winds may be accompanied by storm surge, coastal flooding, and/or river flooding. A hurricane warning can remain in effect when dangerously high water or a combination of dangerously high water and exceptionally high waves continue, even though winds may be less than hurricane force.
Revisions
  • Mar 13, 2025: Altered 'Forecast Error Cone' layer to include 'Danger Area' with updated symbology.
  • Nov 20, 2023: Added Event Label to 'Forecast Position' layer, showing arrival time and wind speed localized to user's location.
  • Mar 27, 2022: Added UID, Max_SS, Max_Wind, Max_Gust, and Max_Label fields to ForecastErrorCone layer.
This map is provided for informational purposes and is not monitored 24/7 for accuracy and currency. Always refer to NOAA or JTWC sources for official guidance.
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!
Étiquettes / Mots-clés
Mots-clés/étiquettes catégorisant le jeu de données.
Format (CSV, XLS, TXT, PDF, etc.)
Format de fichier du jeu de données.
Taille du jeu de données
Taille du jeu de données en mégaoctets.
0.0
Identifiant des métadonnées
Identifiant des métadonnées — peut être utilisé comme identifiant unique pour l’entrée du catalogue.
248e7b5827a34b248647afb012c58787 (affichage de la valeur pour English)
Date de publication
Date de publication du jeu de données.
2019-06-11
Période temporelle des données (date de début)
Date de début des données dans le jeu de données.
Période temporelle des données (date de fin)
Date de fin des données temporelles du jeu de données.
Zone géospatiale couverte
Région spatiale ou lieu nommé couvert par le jeu de données.
Champ Valeur
Catégorie d’accès
Type d’accès accordé pour le jeu de données (ouvert, restreint, service, etc.).
public (affichage de la valeur pour English)
Licence
Licence utilisée pour accéder au jeu de données.
This work is licensed under the Esri Master License Agreement. View Summary | View Terms of Use
Restrictions d’utilisation
Restrictions d’utilisation des données.
Emplacement
Emplacement du jeu de données.
https://climate.esri.ca/datasets/esri2::active-hurricanes-cyclones-and-typhoons (affichage de la valeur pour English)
Service de données
Service de données pour accéder à un jeu de données.
Propriétaire
Propriétaire du jeu de données.
esri_livefeeds2 (affichage de la valeur pour English)
Point de contact
Qui contacter concernant l’accès ?
Esri (affichage de la valeur pour English)
Courriel du point de contact
Courriel à utiliser pour l’accès ?
Éditeur
Éditeur du jeu de données.
Esri (affichage de la valeur pour English)
Courriel de l’éditeur
Adresse courriel de l’éditeur.
Auteur
Auteur du jeu de données.
esri_livefeeds2
Courriel de l'auteur
Adresse courriel de l’auteur.
Date d’accès
Date à laquelle les données et métadonnées ont été consultées.
2026-03-24
Champ Valeur
Identifiant
Identifiant unique du jeu de données.
248e7b5827a34b248647afb012c58787 (affichage de la valeur pour English)
Langue
Langue(s) du jeu de données
English
Lien vers la description du jeu de données
Une URL vers un document externe décrivant le jeu de données.
https://climate.esri.ca/datasets/esri2::active-hurricanes-cyclones-and-typhoons (affichage de la valeur pour English)
Identifiant persistant
Les données sont identifiées par un identifiant persistant.
Identifiant globalement unique
Les données sont identifiées par un identifiant persistant et globalement unique.
Contient des données sur des individus
Le jeu de données contient-il des données sur des individus ?
Contient des données identifiables sur des individus
Le jeu de données contient-il des données identifiables sur des individus ?
Contient des données autochtones
Le jeu de données contient-il des données sur des communautés autochtones ?
Type de portail
Type de plateforme du portail source.
Champ Valeur
Version
Version du jeu de données
None
Source
Source du jeu de données.
None
Notes de version
Notes de version à propos du jeu de données.
Est une version d’un autre jeu de données
Lien vers le jeu de données dont celui-ci est une version.
Autres versions
Lien vers les jeux de données qui en sont des versions.
Texte de provenance
Texte de provenance des données.
Esri (affichage de la valeur pour English)
URL de provenance
URL de provenance des données.
Résolution temporelle
Décrit la granularité des données temporelles dans le jeu de données.
Résolution géospatiale en mètres
Décrit la granularité (en mètres) des données géospatiales dans le jeu de données.
Résolution géospatiale (par régions)
Décrit la granularité (par régions) des données géospatiales dans le jeu de données.
Champ Valeur
Permission de la communauté autochtone
Qui détient la permission de la communauté autochtone. Qui contacter pour l’accès à un jeu de données concernant des communautés autochtones.
Permission communautaire
Permission communautaire (qui a accordé la permission).
Les communautés autochtones concernées par le jeu de données
Communautés autochtones dont sont issues les données.
Champ Valeur
Nombre de lignes de données
Pour un jeu de données tabulaire, nombre total de lignes.
Nombre de colonnes de données
Pour un jeu de données tabulaire, nombre total de colonnes uniques.
Nombre de cellules de données
Pour un jeu de données tabulaire, nombre total de cellules contenant des données.
Nombre de relations de données
Pour un jeu de données RDF, nombre total de triplets.
Nombre d’entités
Pour un jeu de données RDF, nombre total d’entités.
Nombre de propriétés de données
Pour un jeu de données RDF, nombre total de propriétés uniques utilisées par les triplets.
Qualité des données
Décrit la qualité des données du jeu de données.
Métrique de qualité des données
Une métrique utilisée pour mesurer la qualité des données, telle que les valeurs manquantes ou les formats invalides.

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