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Tropical Analysis and Forecast Branch

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Tropical Analysis and Forecast Branch
NameTropical Analysis and Forecast Branch
AbbreviationTAFB
Formation1960s
HeadquartersMiami, Florida
Parent organizationNational Oceanic and Atmospheric Administration

Tropical Analysis and Forecast Branch

The Tropical Analysis and Forecast Branch is a component of the United States National Weather Service within the National Oceanic and Atmospheric Administration headquartered in Miami, Florida. It issues operational tropical cyclone analyses and forecasts that support regional centers such as the National Hurricane Center, Central Pacific Hurricane Center, and allied agencies including the Joint Typhoon Warning Center and Weather Prediction Center. The Branch integrates observations from platforms like GOES and NOAA-19 with models such as the Global Forecast System and European Centre for Medium-Range Weather Forecasts to inform emergency managers and maritime operators including the United States Coast Guard and Federal Emergency Management Agency.

History

The Branch traces lineage to post-World War II tropical meteorology efforts associated with Bureau of Meteorology exchanges and Cold War-era collaborations between United States Air Force and civilian meteorologists. During the 1960s and 1970s, advances from programs like the Global Atmospheric Research Program and projects involving Scripps Institution of Oceanography influenced its methods. The rise of satellite meteorology, marked by TIROS and subsequent GOES launches, transformed analyses alongside numerical breakthroughs from institutions such as Princeton University and Massachusetts Institute of Technology. The Branch adapted through interactions with National Aeronautics and Space Administration research initiatives and operational shifts following major events like Hurricane Andrew and the 1992 Atlantic hurricane season.

Mission and Responsibilities

The Branch’s mission aligns with mandates from Department of Commerce and directives involving maritime safety in coordination with United States Navy interests. Responsibilities include producing cyclone position and intensity estimates for basins affecting Atlantic Ocean, Caribbean Sea, and Gulf of Mexico, and supporting forecasting for the Eastern Pacific. It provides analyses used by International Civil Aviation Organization stakeholders, Port Authority of New York and New Jersey, and energy sector operators such as ExxonMobil and Shell. The Branch contributes to climatological records maintained by National Climatic Data Center and supports research collaborations with universities like University of Miami and Florida State University.

Organizational Structure

Organizationally, the Branch functions within the Hydrometeorological Prediction Center lineage and coordinates with regional centers including the Albuquerque Weather Forecast Office and Tampa Weather Forecast Office. Staff include satellite analysts, forecast meteorologists, and liaison officers who interact with entities such as the Office of the Federal Coordinator for Meteorology and international counterparts like Met Office and Météo-France. Training partnerships involve NOAA Corps officers and academic programs at Massachusetts Institute of Technology and University Corporation for Atmospheric Research institutions. The Branch’s leadership reports through chains involving the National Centers for Environmental Prediction and Office of Oceanic and Atmospheric Research.

Forecasting Products and Services

Products encompass tropical cyclone position and motion fixes, intensity estimates, sea-surface temperature analyses for the Sargasso Sea and Gulf Stream, and advisories used by Pan American World Airways legacy operations and modern carriers following International Airways protocols. Services include graphical analyses used by Maritime Safety Information systems, coordination with World Meteorological Organization focal points, and tailored briefings for agencies such as the Department of Homeland Security and United States Geological Survey when tropical systems threaten coastal infrastructure. The Branch supplies inputs to ensemble systems run at European Centre for Medium-Range Weather Forecasts, Met Office’s Unified Model, and research models from Geophysical Fluid Dynamics Laboratory.

Data Sources and Tools

Key data sources include geostationary and polar-orbiting satellites like GOES-16, NOAA-20, and historical TIROS series; scatterometer missions including ASCAT; and microwave sensors from TRMM and GPM. Aircraft reconnaissance reports from Hurricane Hunting flights by 402d Wing-affiliated squadrons and NOAA Hurricane Hunters supply dropsonde profiles. Ocean observing networks include Argo, surface drifters, and NOAA buoy arrays. Analytical tools range from the Advanced Weather Interactive Processing System to the H*Wind post-storm wind analysis, and model guidance integrations using GrADS and Python (programming language) libraries developed in collaboration with University of Washington teams.

Collaborations and Partnerships

The Branch partners with international warning centers such as Japan Meteorological Agency, India Meteorological Department, and Australian Bureau of Meteorology, and regional entities like Caribbean Meteorological Organization and Cuban Institute of Meteorology. Research collaborations involve Woods Hole Oceanographic Institution, Cooperative Institute for Research in the Atmosphere, and Cooperative Institute for Marine and Atmospheric Studies. Operational liaisons include United States Navy, United States Air Force Reserve Command, and civilian agencies such as American Red Cross during disaster response. Data sharing agreements incorporate archival centers such as NOAA National Centers for Environmental Information and academic data systems at Columbia University’s Lamont–Doherty Earth Observatory.

Notable Events and Impact

The Branch’s analyses have played roles in response to prominent storms including interactions during Hurricane Katrina, Hurricane Maria, Hurricane Sandy, and the 2005 Atlantic hurricane season with multiple Category 5 hurricane impacts. Its work supports maritime incident responses like rescues coordinated with United States Coast Guard and evacuation planning by Federal Emergency Management Agency during events such as Hurricane Irma. Scientific impact includes contributions to peer-reviewed studies published with coauthors from National Center for Atmospheric Research, Stanford University, and Princeton University that improved understanding of tropical cyclone intensification and steering influenced by phenomena like the El Niño–Southern Oscillation and the Atlantic Multidecadal Oscillation.

Category:National Oceanic and Atmospheric Administration