Kathryn presented a seminar on: “Vortex Spin-Down and Imbalances During Inner Core Data Assimilation” Abstract: The axi-symmetric component of the tropical cyclone (TC) wind field has been shown via numerical methods and observations to be well approximated by thermal wind balance throughout much of the vortex. When this assumption is valid, it constrains vortex evolution by requiring a secondary […]
Sixteen HRD scientists participated in the recent 31st AMS Conference on Hurricanes and Tropical Meteorology, being authors or co-authors on 34 presentations and 9 posters. Roughly 750 presentations (442 oral presentations in 70 sessions and 308 posters in 2 session) were submitted to the conference. Of the 496 TC-related presentations and posters at the conference, 130, or about 26%, […]
The article can be accessed at http://viewer.zmags.com/publication/c4f984ab#/c4f984ab/8
Current JTWC logo On May 1, 1959, the Navy and Air Force typhoon forecast facilities throughout the Pacific were consolidated to form the Joint Typhoon Warning Center (JTWC) on Guam. The Center had responsibility to provide all U.S. Government agencies in the west Pacific with warnings of any tropical cyclone west of the International […]
John presented a seminar on two topics: (1) “Enhancements to the SHIPS Rapid Intensification Index”; Abstract: Predicting episodes of tropical cyclone rapid intensification (RI) remains one of the highest operational forecasting priorities of the National Hurricane Center (NHC). In recent years, a statistically based rapid intensification index (RII) that employs predictors from the SHIPS model […]
Dr. Chen presented a seminar on “A Study on the Asymmetric Rapid Intensification of Hurricane Earl (2010) using the HWRF”. Abstract: In this study, the results of a forecast from the operational Hurricane Weather Research and Forecasting (HWRF) system for Hurricane Earl (2010) are verified against available observations and analyzed to understand the asymmetric rapid intensification of […]
Dr. Rogers presented a seminar on “Multi-scale Structure and Evolution of Earl (2010) during Rapid Intensification”. Abstract: The structure and evolution of the inner core of Hurricane Earl (2010) during its rapid intensification is studied here, using airborne Doppler and Global Positioning System dropsonde data. The results shown here depict the rapid intensification of Earl as occurring in […]
Dr. Schneider presented a seminar on “NOAA High Impact Weather Prediction Project (HIWPP): An Overview”. A recording of the presentation is available on the anonymous ftp site: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/seminars/2014/Schneider_HRD_seminar_20140411.mp4
April’s Science meeting had 3 presentations: Sim Aberson – “Vortex-scale targeting” Tim Schneider (ESRL/GSD) – “NOAA High Impact Weather Prediction Project (HIWPP)” Tomislava Vukicevic – “Accounting for Microphysics Uncertainty in Ensemble Prediction and/or Data Assimilation” The presentations are available on the anonymous ftp site as a zip archive at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2014/science/HRD_SciMeet_20140410.zip
Typhoon Sudal over Yap (NOAA GOES-9) On April 9, 2004, Typhoon Sudal’s (Cosme in the PAGASA naming scheme) eyewall passed over the island of Yap of the Federated States of Micronesia. It raked the island with 115 mph (185 km/hr) winds and 7.9 inches (20 cm) of rain. A day later the storm’s estimated one-minute sustained winds […]
