40th anniversary of Hurricane Anita

On 16 August, 1977, a tropical wave moved off the coast of Africa.  It wasn’t until nearly two weeks later that the wave developed enough convection and a surface circulation, and was designated a tropical depression in the middle of the Gulf of Mexico.  The system slowly moved west-southwestward, but rapidly intensifying into a category-5 […]

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Tenth anniversary of Hurricane Felix

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 […]

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HRD Debrief for missions into Hurricane Harvey – 1 September 2017

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 […]

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Wheels up for NOAA’s Hurricane Hunter P3 aircraft and headed to fly into Harvey

NOAA42 continues to gather critical data as it flies into Harvey. The aircraft took off from the Lakeland Linder Regional Airport, Lakeland, FL around 10 PM (0200 UTC) for a nearly eight-hour mission. NOAA’s Environmental Modeling Center is using this data for our forecast models to improve the prediction of the track and intensity of Harvey. […]

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HRD Seminar – Dr. David Ryglicki, Naval Research Laboratory – 17 August 2017

Dr. Ryglicki presented a seminar titled  “The Kinematics of Rapidly Intensifying Hurricanes in Moderate Vertical Wind Shear”. Abstract: A select group of tropical cyclones (TCs) which unexpectedly undergo rapid intensification in moderate vertical wind shear are identified, analyzed, and modeled. Geostationary satellite and reanalysis data are used to identify features and environmental parameters of these TCs. […]

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HRD Debrief for missions into Hurricane Franklin – 15 August 2017

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  

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HRD Monthly Science Meeting of August 2017

August’s science meeting consisted of 5 presentations: Jason Sippel: “Examining impact of recon in operational HWRF” Steve Diaz: “Demonstration of solver-independent regridding operation for a moving hurricane nest” Joe Cione: “Infrared Sea Surface Temperature Measurements from Hurricane Edouard (2014) using GPS dropsondes” John Kaplan: “Hurricane Franklin (2017): A Preliminary Look from a Global Hawk-P3 Perspective” […]

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HRD Monthly Science Meeting of July 2017

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 […]

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HRD Monthly Science Meeting of June 2017

June’s science meeting consisted of 7 presentations: Brad Klotz – “Guidance on Observational Undersampling over the Tropical Cyclone Lifecycle” Pete Black – “Coordinating the the Global Hawk (NASA, NOAA, EPOCH) with the HRD AIPEX module (HFP)” Jon Zawislak and Heather Holbach – “Data Display, Archival, and Legacy (DDAL)” Leon Nguyen – “Science Motivation for Analysis […]

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HRD Monthly Science Meeting of May 2017

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 […]

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