NOAA conducted 12 P-3 and 5 G-IV operational and research missions into Hurricanes Franklin and Idalia between 21 and 31 August. The NOAA P-3 conducted operational missions to “fix” (observe the location and intensity of) both systems and also Tail Doppler Radar missions to gather data to improve model initial conditions and forecasts. The NOAA […]
Rainfall produced by landfalling tropical cyclones (TCs) in HAFS and HWRF-B hurricane models is evaluated by verifying precipitation characteristics, including the shape and size of the rainfall area. Results show that both models produce reasonable rainfall forecasts, but both also tend to forecast storms that are too intense due to precipitation being too close to […]
An experimental version of the Hurricane Weather Research and Forecasting model (HWRF) is used to conduct the most comprehensive assessment to date of the impact of dropsonde data obtained at different distances from the center of a tropical cyclone (TC) on forecasts. The main finding is that dropsonde data within 250 km of the TC […]
Improved understanding of small-scale processes near the surface is important for advancement of TC intensity prediction. Observational data collected by multilevel towers are analyzed to study the turbulent mixing process and structure in the atmospheric surface layer of two landfalling TCs. Newly derived coefficients may lead to improved forecasts when used in numerical models. Read […]
NOAA recently conducted a series of flights into African Easterly Waves to try to understand why some develop into tropical cyclones and some do not. A quick look at some of the data obtained and some logistical issues is available at https://www.aoml.noaa.gov/ftp/hrd/blog/meetings/2023/6_7Aug_AEWs_Debrief.pptx For more information, contact aoml.communications@noaa.gov.
To commemorate the 40th anniversary of Hurricane Alicia’s landfall near Galveston, the National Weather Service Office in Houston/Galveston has created a story map. Details in the story map include the work that NOAA/AOML/HRD did with the hurricane, including multiple flights with Hurricane Hunter aircraft, gathering the first-ever airborne Doppler radar data in a major hurricane, […]
Se ha producido un error crítico en este sitio web.
Más información sobre la solución de problemas de WordPress.