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 observation team monthly meeting – 20 April 2017

The purpose of the observation team meetings is to bring together the people who use observations in their research on a regular basis to discuss issues they’re having, provide updates on observations they’re analyzing or collecting, and any other information that may be of interest to the broader group.  These meetings are also an excellent […]

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Paper on forecast improvements due to dropsonde data from the Global Hawk aircraft published in Monthly Weather Review

Starting in 2010, the National Aeronautic and Space Administration and the National Oceanic and Atmospheric Administration have used the Global Hawk, an unmanned aircraft that can fly at 65,000 feet for 24 hours at a time, to make observations in tropical cyclones. The Global Hawk can release dropsondes that measure temperature, humidity, pressure, and wind […]

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NOAA Hurricane Research overview for WMO Region IV Training Workshop, NHC – 27 February 2017

HRD researchers Frank Marks and Robert Rogers presented summaries of “NOAA’s Hurricane Research” and “Aircraft Observations of Tropical Cyclones” and how they are used in tropical cyclone research to the World Meteorological Organization Regional Association IV Training Workshop held in the National Hurricane Center media room. Copies of the two presentations are available on the […]

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Paper on the types and sizes of ice particles in hurricanes released online in the Journal of Applied Meteorology and Climatology

Many people have experienced the heavy rain and warm, moist air when hurricanes reach land. But several miles above the ground, where the air is very cold, hurricane clouds are made up of snowflakes and tiny ice particles called ice crystals. The computers that scientists use to forecast where hurricanes will go and how strong […]

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HRD Seminar – Dr. Jon Poterjoy, HRD/NRC – Post-Doc Fellow – 30 March 2017

Dr. Poterjoy presented a seminar on “Progress and Lessons Learned During a Six-Month Collaboration with NOAA NSSL on Convective-Scale Data Assimilation”. ABSTRACT The nonlinear evolution of model forecast errors in convective weather regimes presents a major obstacle for predicting severe weather events. Ensemble forecasts provide an effective means of characterizing this uncertainty, which is a crucial step […]

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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 […]

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HRD Seminar – Kelly Ryan, CIMAS and AOML/HRD, NSSL, Norman, OK – 10 February 2017

Kelly Ryan presented a seminar titled  “OSSE Evaluation of the Impact of Aircraft Observations on Hurricane Analyses and Forecasts” at the NOAA National Severe Storms Laboratory NSSL. ABSTRACT Each year, NOAA/AOML’s Hurricane Research Division (HRD) conducts its Hurricane Field Program in which observations are collected via NOAA aircraft to improve the understanding and prediction of hurricanes. […]

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HRD observation team monthly meeting – 16 February 2017

The purpose of the observation team meetings is to bring together the people who use observations in their research on a regular basis to discuss issues they’re having, provide updates on observations they’re analyzing or collecting, and any other information that may be of interest to the broader group.  These meetings are also an excellent […]

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