On 24 August, a tropical wave moved westward off the African coast, gradually becoming organized enough to become a tropical depression a week later almost 200 n mi east southeast of Barbados. Within 12 h, it became Tropical Storm Felix about 60 n mi south of Barbados. A period of rapid intensification commenced, and Felix […]
HRD researchers discussed the results from the four P-3, four G-IV, and one Global Hawk mission into Hurricane Harvey (23-25 August 2017). The agenda for the discussion was: Missions Overview (Paul Reasor) Science Discussions 20170824H1 TDR (Robert Rogers) 20170824H2 TDR (Jon Zawislak) 20170825H1 TDR (Robert Rogers) 20170825H2 TDR/OceanWinds (Jon Zawislak) Additional Field Program Issues HWRF […]
This is a companion paper to the one on Hurricane Patricia. You can read this paper at http://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-16-0055.1.
It has been believed that tropical cyclones are likely to strengthen when strong thunderstorms (called convection) almost completely surround the storm’s center. In order to better understand what prevents this convection from surrounding the storm’s center in some storms (but not others), this study analyzes data collected on NOAA aircraft flights in two storms that […]
HRD researchers discussed the results from the two P-3 and one Global Hawk mission into Hurricane Franklin (8-9 August 2017). The agenda for the discussion was: Mission Overview (Reasor) Science Discussions 20170808H1 (Zawislak) 20170809H1 (Rogers) EMC input (Sippel) Additional field program issues Slides from the debrief are available at: ftp://ftp.aoml.noaa.gov/pub/hrd/blog/meetings/2017/HFP/franklin17_debrief_main.pptx
You can read about it at http://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-16-0055.1.
These two papers analyze extreme upward air currents, called “convective bursts,” in hurricanes that have been believed to be important for hurricane intensification. We use the Weather Research and Forecasting (WRF) model to look at convective bursts in two hurricanes: Hurricane Dean from 2007 and Hurricane Bill from 2009. In the first paper, we study […]
July’s science meeting consisted of 6 presentations: Steve Guimond (NASA) – “Reviving the Imaging Wind and Rain Airborne Profiler (IWRAP) for Hurricane Research: A Case Study of Hurricane Rita (2005)” Mu-Chieh (Laura) Ko – “Preliminary Review – HWRF-B 2016 Retrospective Dataset” Robert Rogers – “The Challenge of Intensity Forecasting in Moderate Shear” Emily Paltz (Hollings […]
Congratulations to Rob on this recognition.
May’s science meeting consisted of 3 presentations: Jonathan Zawislak: Validation of tropical cyclone precipitation in HWRF using satellite observations Hua Chen – Azimuthal distribution of deep convection, environmental factors, and tropical cyclone rapid intensification: A perspective from HWRF ensemble forecasts of Hurricane Edouard Stephanie Stevenson (University of Albany/SUNY): Understanding intensity changes signaled by tropical cyclone lightning […]