Global Tropical Cyclone Layer (Core Feature, Included)

The Global Tropical Cyclone layer enables users to monitor and prepare for tropical cyclones worldwide using authoritative forecast data from trusted sources.

🔒 Premium Feature
Wind swath and probability overlays are available as part of Tomorrow.io’s premium offering. For access, please contact your Account Team or email sales@tomorrow.io.

Data Sources

• Atlantic, Eastern Pacific, Central Pacific: Forecasts from the National Hurricane Center (NHC)
• Rest of the World: Forecasts from the Joint Typhoon Warning Center (JTWC)

This dual-sourced approach ensures accurate, comprehensive coverage for tropical cyclone tracking across all ocean basins.

Visualizing Cyclones on the Platform

The Tropical Cyclone layer displays:

• Official forecast tracks and cones of uncertainty
• Past storm tracks
• Intensity forecasts
• Key storm metrics, including:
  • Maximum sustained wind speeds
  • Gusts
  • Sea level pressure
  • Storm movement speed and direction

Use this layer to understand where tropical cyclones may impact operations or assets—either along the track or within the uncertainty cone.

Switching Sources on the Map

You can compare source perspectives for a given storm directly on the map:

1. Enable the Tropical Cyclone layer.
2. Select a storm on the map or from the side panel list.
3. Use the Source selector to switch betweenBHC (NOAA), JTWC and JMA.

When a source is selected, the map updates to display that agency’s:

• Forecast track and cone of uncertainty
• Intensity forecast and advisory metadata
• Past track and key storm metrics

 🌐  The source switcher is a part of Tomorrow.io's core offering and available for all users.

Wind Swath Visualization (Premium)

The wind swath depicts areas expected to experience sustained winds of:

• 34 knots (tropical storm-force)
• 50 knots
• 64 knots (hurricane-force)

Swaths are based on NHC forecasts and extend up to 5 days (120 hours) from the latest advisory.

⚠️ Regional Availability
Wind swath probability overlays are currently available only in the United States.

🔒 Premium Feature
Wind swath and probability overlays are available as part of Tomorrow.io’s premium offering. For access, please contact your Account Team or email sales@tomorrow.io.

Alerts and Notifications

Proactive Tropical Cyclone alerts are available through the Alerts tab and can be sent via:

• Email
• Push notification
• SMS
• WhatsApp

Each alert includes:

• Storm name
• Advisory number and issuance time
• Current location, movement speed/direction
• Maximum winds and gusts
• Direct link to view the layer on the map

Combining with Severe Weather Insights

Users can layer tropical cyclone forecasts with existing severe weather alerts to gain a full picture of storm-related risk across regions of interest.

Need Help?

For assistance using the tropical cyclone tracking tools, reach out to your Account Team or email us at support@tomorrow.io.