The Data Bulletin

Climate

Tropical storms by season and basin, the strongest storms of a season, wildfire detections from orbit and the human toll of natural disasters, worldwide.

Tropical Storms

Storms tracked worldwide by season

Tropical storms, hurricanes and typhoons tracked in a season, counted by the ocean basin where each formed. The current season fills in as it runs.

Atlantic E. Pacific W. Pacific N. Indian S. Indian S. Pacific

Source: NOAA IBTrACS, International Best Track Archive for Climate Stewardship, via NOAA ERDDAP. By season.

About This Data
IBTrACS is the worldwide archive of tropical cyclone tracks that national weather agencies feed into. A storm counts once, in the basin where it formed, for the season it belongs to; southern hemisphere seasons straddle the new year and take the year they end in. The first season in the archive's rolling three-year window is clipped, so the chart starts with the first whole season.

Strongest Storms

Strongest storms of the season

Peak one-minute sustained wind in miles per hour, the ten strongest storms of the season across every basin. 2025 season, curated July 20, 2026.

Source: curated from NOAA IBTrACS, July 20, 2026. Peak wind is the archive's usa_wind, converted from knots.

About This Data
The list is a curated set of named storms from the 2025 season, taken from the IBTrACS archive on July 20, 2026 and locked to that season. Wind speeds are one-minute sustained peaks as reported by the U.S. agencies in the archive, converted from knots to miles per hour.

Wildfires

Wildfire detections in the past day

Active fire hotspots seen by the VIIRS instrument on NOAA-20 in the past 24 hours, grouped by region.

Source: NASA FIRMS, VIIRS NOAA-20 near-real-time active fire data. Daily.

About This Data
FIRMS reports each satellite pixel where the sensor saw a thermal anomaly hot enough to be a fire. One large fire can produce many detections and a small one only one, so the count measures fire activity, not the number of fires. Regions are a coarse split of the globe by latitude and longitude.

Disasters

Natural disaster toll by year worldwide

People killed, affected or left homeless by natural disasters worldwide, by the year the disaster began. The current year fills in as it runs.

Source: EM-DAT, the international disaster database of CRED at UCLouvain. Annual.

About This Data
EM-DAT records disasters that killed ten or more people, affected a hundred or more, or led to a declaration of emergency or a call for international help. Natural disasters here are geophysical, meteorological, hydrological, climatological and biological events; deaths include the missing and presumed dead, and people affected are those needing immediate help.