NOAA Hurricane Research overview for WMO Region IV Training Workshop, NHC – 26 February 2018

To demonstrate how tropical cyclone research is used to improve forecast guidance HRD researchers Drs. Frank Marks, Robert Rogers, and Jason Sippel presented summaries of “NOAA’s Hurricane Research”, “Aircraft Observations of Tropical Cyclones”, and  "Tropical Cyclone Modeling and Data Assimilation"  to the World Meteorological Organization Regional Association IV Training Workshop held in the National Hurricane …

HRD Monthly Science Meeting of January 2018

January’s science meeting consisted of three presentations: Jon Zawislak:  Preliminary results on the sources of condensate in the hurricane outflow layer Sim Aberson:  Observations of gravity waves in tropical cyclones Jason Dunion:  Assessing tropical cyclone intensity change in moderate vertical wind shear using dropsondes: thermodynamics of the lower troposphere All the presentations are available on …

Paper on changes to the intensity of tropical waves during the hurricane season published in the Journal of Climate

African easterly waves (AEWs) are areas of low air pressure that move westward across North Africa and into the Atlantic Ocean. AEWs can cause intense thunderstorms, and, once over the warm waters of the Atlantic Ocean, they may become tropical cyclones that might affect the Caribbean and North America. In summer, many AEWs form in, …

HRD researchers at 71st Interdepartmental Hurricane Conference/Tropical Cyclone Research Forum, Miami, FL – 14-16 March 2017

HRD and AOML scientists participated in the 71st Interdepartmental Hurricane Conference/Tropical Cyclone Operations and Research Forum. HRD scientists presented or were coauthors on 14 of the 45 presentations and 3 of the 10 posters. Shirley Murillo chaired the Joint Hurricane Testbed (JHT) session and Sundararaman Gopalakrishnan chaired a panel discussion on “Research Supporting Operations: Current …

Paper on easterly waves in the Eastern Pacific that can form into tropical cyclones published in The Journal of the Atmospheric Sciences

“Easterly waves” are areas of low air pressure in the tropics that move westward and may become tropical cyclones. The most well-known type of easterly wave is the “African easterly wave,” which moves from West Africa north of the equator into the Atlantic Ocean and sometimes into the Pacific. Although almost all Northeast Pacific tropical …

HRD researchers contribute to new textbook on recent advances in tropical cyclone research

The book, co-edited by HRD scientist Sundararaman Gopalakrishnan, is based on a series of lectures by scientists from the US, India and Australia, at a workshop held in Bhubaneswar, India on 9-14 July 2012. It provides information on recent advances in tropical cyclone (hurricane and typhoon) observations, data assimilation (the process of getting these observations …

HRD scientists participate in HFIP Annual Review, NHC, Miami, FL – 11-12 January 2017

The HFIP program is coordinated through 3 strategic planning teams (Model Development, Data Assimilation/Ensemble, and Post Processing and Verification Development) and 3 tiger teams (High Resolution Physics, Ensemble Product, and Ocean Model Impact). The HFIP strategic planning teams develop our multi-year strategy for improving hurricane forecast guidance, while the tiger teams are responsible for overseeing …