Last month saw the publication of the 2025 State of the Geomagnetic Field Report. The report details the current state of Earth’s main magnetic field, and provides a performance analysis of the most recent version of the World Magnetic Model (WMM) released in late 2024, known as WMM2025. The report
The Global Forecast System (GFS) is a National Centers for Environmental Prediction (NCEP) weather forecast model that generates data for dozens of atmospheric and land-soil variables, including temperatures, winds, precipitation, soil moisture, and atmospheric ozone concentration. The system
The World Magnetic Model (WMM) is the standard model for navigation, attitude, and heading referencing systems that use the geomagnetic field. The WMM is also used for civilian applications, including navigation and heading systems. A new version of the model is updated every five years to address
The World Magnetic Model High Resolution (WMMHR) is an advanced geomagnetic field model that provides a more detailed, accurate depiction of the geomagnetic field than the World Magnetic Model (WMM). WMMHR2025 includes core field and secular variation coefficients for degrees n = 1 to 15. This model
The U.S. Climate Normals are a large suite of data products that provide information about typical climate conditions for thousands of locations across the United States. Normals act both as a ruler to compare today’s weather and tomorrow’s forecast, and as a predictor of conditions in the near
Learn about how and why the geomagnetic poles move, and access pole location data from 1590–2025.
The Global Historical Climatology Network daily (GHCNd) is an integrated database of daily climate summaries from land surface stations across the globe. GHCNd is made up of daily climate records from numerous sources that have been integrated and subjected to a common suite of quality assurance
The Next Generation Weather Radar (NEXRAD) system is a network of 160 high-resolution S-band Doppler weather radars jointly operated by the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the U.S. Air Force. The NEXRAD system detects precipitation and wind, and its
The ETOPO Global Relief Model integrates topography, bathymetry, and shoreline data from regional and global datasets to enable comprehensive, high resolution renderings of geophysical characteristics of the earth’s surface. The model is designed to support tsunami forecasting, modeling, and warning
On March 11, 2011, a magnitude 9.1 earthquake struck off the northeast coast of Honshu, Japan, generating a deadly tsunami.
On February 11-20, 2021, a historical winter event occurred across the state of Texas that set many records, including being the first billion-dollar weather disaster of that year.
NOAA's Weather and Climate Toolkit (WCT) is mapping and data conversion software. WCT is a free platform with source code that allows the visualization and export of local or remote weather and climate data including outputs from Radar, Satellites, and Modelling. Unique data conversion features
The NCEI Coastal Water Temperature Guide (CWTG) was decommissioned on May 5, 2025. The data are still available. Please see the Data Sources below.
NCEI, the World Data Service for Geophysics (including Tsunamis), and the UNESCO-IOC International Tsunami Information Center, collaborate to provide tsunami travel time maps. Tsunamis are categorized as long waves; therefore, tsunami travel times can be computed with water depth as the only
The Automated Surface Observing Systems (ASOS) program is a joint effort of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). There are currently more than 900 ASOS sites in the United States. These automated systems collect