HRD Monthly Science Meeting of August 2018

August’s science meeting consisted of five presentations: Andrew Kren - HAMSR retrieval assimilation in the GSI system Josh Wadler (UM/RSMAS)- A Characterization of Turbulent Kinetic Energy and its Generation in Idealized Tropical Cyclone Simulations Gus Alaka - The Basin-Scale HWRF: 2018 HFIP Real-Time Demos Miguel Cortez – Summer 2018 Nerto update Stan Goldenberg - August …

70th Anniversary of seminal hurricane formation paper

In the summer 1948 edition of Geophysica journal, Eric Palmén published a seminal paper entitled "On the Formation and Structure of Tropical Hurricanes".  In it he proposed that a tropical disturbance needed to be over sea surface temperature of at least 80℉ (26-27℃) in order to form into a tropical cyclone.  He imposed the tracks …

HRD Monthly Science Meeting of July 2018

July’s science meeting consisted of four presentations: Erin Jones – Simulating Observations of Gravity Waves Radiating from Hurricanes Miguel Cortez - Summer 2018 Nerto Work Plan Sim Aberson – A comparison of track forecasts from NOAA’s GFS and ECMWF’s IFS for Hurricane Irma Jon Zawislak - 2018 NOAA/AOML/HRD Hurricane Field Program Intensity Forecast Experiment (IFEX) …

HRD Scientists brief NOAA Aircraft Operations Center personnel on IFEX 2018, Lakeland, FL – 21 June 2018

Intensity Forecast Experiment (IFEX) Program Director Jon Zawislak and HRD Director Frank Marks briefed the Aircraft Operations Center (AOC) personnel at their brand new facility at Lakeland Linder Regional Airport on IFEX plans for 2018 and Hurricane Forecast Improvement Project progress, respectively. The two presentations are available in a .zip archive on the anonymous ftp …

2018 Hurricane Field Program now available

Since 1956, the Hurricane Research Division has carried out an annual field program in which data on Atlantic hurricanes is collected from a variety of platforms, primarily NOAA aircraft.  Since the early 1970s plans for particular experiments were documented prior to the start of the season, to better allocate resources and personnel. This year's plan …

AOML and HRD researchers at 33rd AMS Conference on Hurricanes and Tropical Meteorology, Ponte Vedra, FL – 15-20 April 2018

Thirty-one AOML and HRD scientists participated in the recent 33rd AMS Conference on Hurricanes and Tropical Meteorology in Ponte Vedra, FL, as authors or co-authors on 65 presentations and 19 posters. Roughly 783 presentations (507 oral presentations in 67 sessions and 276 posters in 2 session) were submitted to the conference. Of the 567 TC-related presentations …

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, …