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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HRD Director, Frank Marks presents at NOAA’s 2017 Hurricane Season Awareness Webinar Series, 4 May 2017

The presentation was the first in a series of three webinars presented by NOAA’s Southeast and Caribbean Regional Collaboration Team (SECART) in advance of the 2017 Atlantic Hurricane Season by NOAA specialists from the National Hurricane Center (NHC), the Atlantic Oceanographic and Meteorological Laboratory (AOML), the Weather Prediction Center (WPC), the Southeast River Forecast Center […]

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Paper on the bumpy ride encountered by Hurricane Hunters in Hurricane Felix published in Monthly Weather Review

On September 2, 2007, a National Oceanic and Atmospheric Administration Hurricane Hunter airplane flew into Hurricane Felix when it was a category-5 hurricane north of Venezuela. The aircraft measured wind speed of 163 kt (188 mph) at the ocean surface and an upward wind speed of 60 kt (69 mph), the fastest upward wind ever […]

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HRD Seminar – Dr. Jason Dunion, CIMAS and AOML/HRD – 4 May 2017

Dr. Dunion presented a seminar titled  “The Tropical Cyclone Diurnal Cycle: The Great Hurricane Exhale”. Abstract: New geostationary infrared satellite imagery has revealed a curious diurnal pulsing pattern in tropical cyclones (TCs) that may represent an unrealized, yet fundamental process of mature TCs.  These diurnal pulses begin forming in the storm’s inner core near the time […]

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Greater Miami AMS Chapter/HRD Seminar – Dr. Frank Marks, AOML/HRD – 26 April 2017

The Greater Miami Chapter of the American Meteorological Society (AMS) held their meeting Wednesday, April 26, 2017 at the AOML Laboratory.  The featured speaker was Dr. Frank Marks,  Director of the AOML/Hurricane Research Division. Dr. Marks presented a seminar on “Landfalling Tropical Cyclone Rainfall Distributions”. Abstract: Rainfall-induced freshwater flooding associated with landfalling tropical cyclones (TCs) […]

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Paper on gravity waves caused by hurricanes and a potential new way to estimate hurricane intensity released online in Geophysical Research Letters

 Summary: Observing tropical cyclones around the world can be very expensive because they occur over oceans where there are few observations. Hurricane Hunter aircraft can reach hurricanes only when they are close to land. Thunderstorms near the centers of tropical cyclones cause waves (called “gravity waves”) in the atmosphere that move outward in spiral […]

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Paper on a new dropwindsonde that measures sea surface temperature released online in the Journal of Atmospheric and Oceanic Technology

Warm water provides the energy for tropical cyclones to form and intensify, and knowing the temperature of the water is important in predicting how strong a hurricane will become. Dropwindsondes are instruments that measure air temperature, moisture, pressure, and wind velocity as they fall toward the ocean after release from Hurricane Hunter aircraft, but they […]

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HRD Monthly Science Meeting of April 2017

April’s science meeting consisted of 6 presentations: Gus Alaka: 2016 Basin-Scale HWRF MET-TC Verification 2016 Atlantic Basin Xuejin Zhang: Basin-scale HWRF Verification Mu-Chieh Ko (Laura): HIWPP Precipitation Evaluation – Selected cases of 2016 Atlantic Hurricane Season Kathryn Sellwood: Assimilating Hurricane Imaging Radiometer (HIRAD) Surface Wind Speeds for Analyses and Forecasts of Tropical Cyclones Pete Finocchio […]

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