A sampling of TC PRIMED products from Typhoon Maria at 1013 UTC on 9 July 2018.
A sampling of TC PRIMED products from Typhoon Maria at 1013 UTC on 9 July 2018 in the western North Pacific, where a) is GPROF, b) is GPM DPR precipitation rate, c) GPM DPR reflectivity, d) 36.6 GHz, e) 89 GHz, and f) infrared from Himawari-8.

Welcome to the home of TC PRIMED!

Why TC PRIMED?

Tropical cyclone forecasters rely heavily on a multitude of forecast products from various sources to gain insight into the state of the tropical cyclone and issue forecast guidance.

These forecast products include, but are not limited to

  • Observations from low-Earth-orbiting satellites, with passive microwave sensors that can peer through clouds to provide forecasters with a glimpse at the convective and precipitation structure of tropical cyclones
  • Environmental diagnostics from models like the NOAA Statistical Hurricane Intensity Prediction Scheme (SHIPS) that inform forecasters on the various states of the environment within which the tropical cyclone is embedded

While these products are invaluable for short-term forecasting applications, climate researchers would also benefit from having a consistent, long-term collection of the products to conduct multidecadal studies of tropical cyclones. However, the widely disparate data sources of these products hinder the development of new tropical cyclone forecast products and new tropical cyclone research.

What is TC PRIMED?

The NOAA/CSU Tropical Cyclone PRecipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED) aims to ameliorate the issue of disparate data sources by consolidating forecast products from various data sources into an analysis- and artificial intelligence (AI)-ready format. TC PRIMED centers data around satellite passive microwave observations of tropical cyclones.

For more details on whether TC PRIMED is ready for your AI application, see the AI readiness portion of the Products page.

TC PRIMED v01r01 Statistics

  • Contains 1.6 TB of data and growing
  • Spans from to
  • Captures 3,552 global tropical cyclones
  • Includes 242,613 satellite overpasses

What are the data products?

  • Global tropical cyclone characteristics from
  • Multi-agency inter-calibrated, multi-channel microwave brightness temperatures
  • Retrieved precipitation from the NASA Goddard Profiling Algorithm (GPROF)
  • Infrared brightness temperatures from the global constellation of geostationary satellites
  • ECMWF fifth-generation reanalysis (ERA5) product fields and derived environmental diagnostics
  • TRMM/GPM precipitation radar variables

For more information on the TC PRIMED products, see the products page.

If you have specific questions, contact the TC PRIMED development team via .

TC PRIMED News

To stay up-to-date on TC PRIMED news, sign up for our users mailing list.

The development team has compiled and released the final version of the TC PRIMED files for the Northern Indian Ocean and Western North Pacific storms in the 2024 tropical cyclone season. The files are up on the AWS S3 bucket and the NCEI repository.

Additionally, the team has updated a variable in the environmental files and included changes to two 2023 Northern Indian Ocean storms. For more details, see our "resolved issues" section on the products page.

These updates to TC PRIMED are possible thanks to the Department of Defense Joint Typhoon Warning Center decks publicly available and funding from the United States Department of the Navy Office of Naval Research, which enables continued development and additions of new tropical cyclone seasons.

The development team has compiled and released the final version of the TC PRIMED files for the North Atlantic and eastern North Pacific storms in the 2024 tropical cyclone season. The files are up on the AWS S3 bucket and the NCEI repository. Therefore, the preliminary version for these storms is no longer publicly available.

In addition to the 2024 North Atlantic and eastern North Pacific storms, the National Hurricane Center and Central Pacific Hurricane Center released an updated final best-track information for EP052022 (Hurricane Danielle). TC PRIMED now includes these updates.

These updates to TC PRIMED are possible thanks to the National Hurricane Center and Central Pacific Hurricane Center decks publicly available and funding from the United States Department of the Navy Office of Naval Research, which enables continued development and additions of new tropical cyclone seasons.

The GPM-API package can now obtain, process, and visualize data from the Tropical Cyclone PRecipitation, Infrared, Microwave and Environmental Dataset (TC PRIMED).

GPM-API (https://pypi.org/project/gpm-api/) is a Python interface to download, read, process, and visualize products from the GPM data archive. GPM-API was developed independently of TC PRIMED and has recently included utilities to interface with TC PRIMED data on the Amazon Web Service (AWS) Simple Storage Service (S3) bucket.

Users can learn more about the GPM-API package here: https://gpm-api.readthedocs.io/en/latest/, and go through the tutorial specific to TC PRIMED here: https://gpm-api.readthedocs.io/en/latest/tutorials/tutorial_TCPRIMED.html.

Reference: Ghiggi, G., 2024: GPM API Version 0.3.4. EPFL. https://pypi.org/project/gpm-api/. https://doi.org/10.5281/zenodo.7753488.

The TC PRIMED development team finalized the dataset documentation for v01r01. This documentation outlines changes since v01r00 and provides more detail about the team compiles TC PRIMED and calculates metrics.

Users can find the dataset documentation on NODD, the official NCEI archive, and by following this link to the publications page.

NOAA highlighted TC PRIMED in the 2024 NOAA Science Report. TC PRIMED is one example of how NOAA and partners are working to reduce impacts from hazardous weather through artificial intelligence ready datasets and machine learning.

The report is available through NOAA Institutional Repository at https://repository.library.noaa.gov/view/noaa/66854.

The development team has updated several storms to capture post-season changes to tropical cyclone best track files from the National Hurricane Center, Central Pacific Hurricane Center, and Joint Typhoon Warning Center.

What are the changes and the impact of these changes?

Different aspects of the best track storm metadata can change. These include the period over which the best track represents a storm, the storm center position and intensity. In these updates, center position changed between 0.1 and 0.8 degrees with a 15 knot maximum change in intensity.

For more details, see our "resolved issues" section on the products page.

The development team has compiled and released the final version of the TC PRIMED files for the Southern Hemisphere storms in the 2023 tropical cyclone season. The files are up on the AWS S3 bucket and should be up on the NCEI repository soon. Therefore, the preliminary version for the Southern Hemisphere storms in the 2023 tropical cyclone season will no longer be publicly available.

These updates to TC PRIMED are possible thanks to the Joint Typhoon Warning Center for making their Southern Hemisphere decks publicly available and funding from the United States Department of the Navy Office of Naval Research, which enables continued development and additions of new tropical cyclone seasons.

The TC PRIMED team recently realized that a variable in the TC PRIMED files was miscalculated. That variable is the storm_heading in the overpass_storm_metadata group and it involves the conversion of the zonal and meridional components of storm motion to direction.

The team has fixed that variable and have uploaded the fixed TC PRIMED files onto the AWS S3 bucket. The fixed files are currently being uploaded to the NCEI repository.

For more details, see our "resolved issues" section on the products page.

The TC PRIMED team released the tcprimedapi Python package (https://pypi.org/project/tcprimedapi/1.0a0/) to help users navigate and access the dataset on its Amazon Web Service (AWS) Simple Storage Service (S3) bucket (https://noaa-nesdis-tcprimed-pds.s3.amazonaws.com/index.html#v01r01/).

The Python package facilitates easier access to TC PRIMED data on the AWS S3 bucket by allowing users to query and retrieve data based on the a) tropical cyclone season, basin and/or number, b) TC PRIMED file type (i.e., particular satellite, sensor, or TC PRIMED environmental files), c) dates, and/or d) version type (final or preliminary). Users can look at examples of its application on its GitHub repository (https://github.com/CSU-CIRA/tcprimedapi/).

The TC PRIMED team rolls out minor release v01r01 on the NOAA Open Data Dissemination.

The new release includes the following changes:

  • Extends the dataset back to and up to , excluding the SH basin
  • Expands the number of storms from around 2,300 to 3,552
  • Increases number of overpasses from around 197,000 to 242,613
  • Adds a preliminary version for the current season (i.e., 2024)
  • Incorporates more environmental information
    • New cylindrical data group
    • Expands diagnostic regions from two to four:
      • 0 to 300 km
      • 0 to 500 km
      • 0 to 800 km
      • 200 to 800 km
    • New environmental diagnostics:
      • Cyclone phase space
      • Eddy momentum flux convergence
      • Equivalent potential temperature
      • Helicity
      • Maximum potential intensity

The latest release is accessible through the TC PRIMED AWS S3 bucket on NODD at https://noaa-nesdis-tcprimed-pds.s3.amazonaws.com/index.html.

The TC PRIMED team would like to thank the United States Department of the Navy Office of Naval Research for providing the support for this release.

The TC PRIMED team participated in the first NOAA Center for Artificial Intelligence/NESDIS Common Cloud Framework (NCCF) Show and Tell.

The NOAA Center for Artificial Intelligence recently released an initial set of interactive open science Jupyter notebooks that highlight NOAA mission area data and machine learning use cases in the form of a Learning Journey Library. The Learning Journey Library increases the economic value and societal benefit of NOAA data and promotes artificial intelligence proficiency for Earth science machine learning applications. Participants got to interact with these Learning Journeys in the NCCF and receive instruction from subject-matter experts. The tropical cyclone case used the Tropical Cyclone PRecipitation, Infrared, and Environmental Dataset based Learning Journey and specifically focused on using these data to develop an artificial neural network to make a precipitation retrieval algorithm for tropical cyclone scenes.

See the NCAI Learning Journey Library to view material used during the Show and Tell.

TC PRIMED highlighted in NESDIS Impacts Briefings for Artificial Intelligence.

NESDIS released a new report called the NESDIS Impacts Briefings. The briefings tell the stories behind NOAA satellites and information and feature work from NOAA satellite missions and environmental data. In the Artificial Intelligence (AI) briefing, NESDIS highlighted the Tropical Cyclone Precipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED; Razin et al. 2023).

TC PRIMED listed as the NOAA Office of the Chief Information Officer dataset contribution along with the NOAA Center for AI Learning Journey Library to the multi-agency National AI Research Resource (NAIRR) Pilot. The Office of Science and Technology Policy and National Science Foundation led NAIRR effort seeks to democratize the AI research and development through aggregating multi-agency AI resources and efforts.

To see more NAIRR Pilot resources, see https://nairrpilot.org/pilot-resources.

See Naufal Razin's interview with the American Meteorological Society (AMS) for a profile in the Bulletin of the AMS and short write up corresponding to the TC PRIMED BAMS article in the issue print and digital edition.

BAMS Digital Edition (access requires an AMS membership).

The TC PRIMED Learning Journey Jupyter notebooks are now available as part of the NOAA Center for Artificial Intelligence (NCAI) Learning Journey Library.

The NCAI Learning Journey Library seeks to enable internal and external NOAA data users to understand AI-ready datasets and explore machine learning in the context of the NOAA mission space. The TC PRIMED Learning Journey, which includes a set of six Python-based Jupyter Notebooks, walks users through understanding TC PRIMED’s data structure, plotting TC PRIMED data, performing an analysis using TC PRIMED, applying a machine learning approach to TC PRIMED, and preprocessing TC PRIMED data for more complex machine learning approaches.

NCAI Learning Journey Library.

The American Meteorological Society publishes the TC PRIMED development team's dataset manuscript in the November issue of the Bulletin of the American Meteorological Society!!!

Razin, M. N., C. J. Slocum, J. A. Knaff, P. J. Brown, and M. M. Bell, : Tropical Cyclone Precipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED). Bull. Amer. Meteor. Soc., 104, E1980–E1998, https://doi.org/10.1175/BAMS-D-21-0052.1.

The TC PRIMED development team demonstrated the dataset at the 5th NOAA Workshop on Leveraging AI in Environmental Sciences.

For the Learning Journey discussed during the demo at the workshop, see our products page.

TC PRIMED for the 1998 to 2021 seasons is now publicly available through the NOAA Open-Data Dissemination (NODD) program on Amazon Web Services (AWS) through the support of the NOAA Center for Artificial Intelligence. For details on how to access the data from the AWS s3 bucket, see our products page. TC PRIMED will also be available through NCEI shortly. Through NCEI, more fine-grain, storm-level search functionality will be available.

The following URLs provide details about TC PRIMED in the Registry of Open Data on AWS and access to the TC PRIMED AWS s3 bucket on NODD: https://noaa-nesdis-tcprimed-pds.s3.amazonaws.com/index.html.

For details on the structure of the data on NODD, see our products page.

Thanks to support from the Office of Naval Research, TC PRIMED has been extended to include the 2020 and 2021 seasons. With this extension, the dataset now has an additional 23,000 overpasses of over 200 additional tropical cyclones.

CIRA and STAR finalize the TC PRIMED submission agreement with NCEI. This marks the start of data ingest for TC PRIMED at NCEI.

Naufal Razin presents on the artificial intelligence data readiness of TC PRIMED as part of a pilot project with the NOAA Center for Artificial Intelligence at the American Meteorological Society 103rd Annual Meeting. With TC PRIMED pending ingest with NCEI, updates to improve the artificial intelligence data readiness have been incorporated into the data set.

The TC PRIMED large-scale, storm-centric environmental has been published in the Journal of Climate. For details, see the citations section of the TC PRIMED publications page.

The TC PRIMED manuscripts describing details for the entire dataset and the large-scale, storm-centric environmental diagnostics have been accepted and posted to the Early Online Release. In addition, NCEI has minted the TC PRIMED DOI. For details, see the citations section of the TC PRIMED publications page. Data availability is pending ingest at NCEI.

Naufal Razin presents on "AI-Readiness of the Tropical Cyclone Precipitation, Infrared, Microwave, and Environmental Dataset" at the Research Showcase at the Earth Science Information Partners (ESIP) July 2022 Meeting. The talk discusses an early evaluation of TC PRIMED against the draft ESIP Checklist to Examine AI-readiness for Open Environmental Datasets.

TC PRIMED receives an "approval for archive" with NCEI. The TC PRIMED development team is waiting for NCEI to initiate data ingest.

Naufal Razin wins the first-place student poster award at the American Meteorological Society 34th Conference on Hurricanes and Tropical Meteorology for “Tropical Cyclone Precipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED).” His poster is available on the publications page, and more details about the award are in a CSU Department of Atmospheric Science news item.

TC PRIMED development team submits an Advanced Tracking and Resource tool for Archive Collections (ATRAC) request with the NOAA National Centers for Environmental Information (NCEI).

TC PRIMED Support and Funding

TC PRIMED fosters new research to better understand tropical cyclones and new forecast product development, facilitates increased use of satellite and diagnostics data, and promotes collaboration between

TC PRIMED has received funding from