Paper on how the region near the ocean surface impacts hurricane forecasts published in Monthly Weather Review

 Summary: Forecasters and researchers use the Hurricane Weather Research and Forecasting (HWRF) model to forecast where a hurricane will go, how strong it will be, how large it will be, and where the strongest winds are. This paper looks at how winds close to the surface in hurricanes are transferred upward and how changes …

HRD employees recognized at AOML Awards ceremony

At a recent awards ceremony, HRD Director Frank Marks and AOML Deputy Director Molly Beringer presented recognitions to several employees whose service went above-and-beyond during the past year. Bachir Annane was recognized for comprehensive and timely analyses using the OSSE framework to evaluate the impact of the CYGNSS scatterometer data set on tropical cyclone forecasts. Jun …

Paper on a new way to run forecast models with multiple hurricanes at the same time published in Weather and Forecasting

Summary: HWRF is NOAA's primary model for tropical cyclone (tropical depressions, tropical storms, and hurricanes) forecast. The distance between places where forecasts are made in the model (the grid resolution) must be small to make accurate forecasts. However, the amount of computer power needed increases as these points get closer together. To save computer power, …

HRD Monthly Science Meeting of December 2016

December’s science meeting consisted of 6 presentations: Paul Reasor (HRD):  "Real-time, storm-scale diagnostics derived from Tail Doppler Radar", Jun Zhang (HRD):  "Recent improvement in physical parameterization of horizontal turbulent mixing in HWRF ", Rob Rogers (HRD):  “Re-writing the Tropical Record Books:  The Extraordinary Intensification of Hurricane Patricia (2015)”, Hui Christophersen (HRD):  'Composite Analysis of Global …

HRD Seminar – Dr. Sim Aberson, AOML/HRD – 5 December 2016

Dr. Aberson presented a seminar titled  “Dropsondes in Hurricanes (1949 to the present)" Abstract: The history of the use of dropsondes in hurricanes will be presented with special emphasis on the achievements since the development and implementation of the NCAR GPS dropwindsonde 20 years ago.  The GPS dropwindsonde revolutionized the science of hurricanes.  Though originally developed …