On 14 July, 1997, Tropical Storm Claudette was moving northeastward offshore the east coast of the US. Eager to test the new Gulfstream-IV (G-IV) jet aircraft and the new Global Positioning System dropwindsonde, the National Hurricane Center tasked the first-ever operational synoptic surveillance mission geared toward improving track forecasts. Initial condition differences in the […]
Tag Archives: dropwindsondes
Intensity Forecast Experiment (IFEX) Program Director Paul Reasor and HRD Director Frank Marks briefed the Aircraft Operations Center (AOC) personnel at their brand new facility at Lakeland Linder Regional Airport on IFEX plans for 2017 and Hurricane Forecast Improvement Project progress, respectively. The two presentations are available in a .zip archive on the anonymous ftp […]
You can read about it at http://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-16-0055.1.
Summary: Hurricane Hunter aircraft have been releasing instruments called dropwindsondes to measure pressure, temperature, moisture, and wind speed and direction in hurricanes for two decades. Data from dropwindsondes released near the storms have led to better forecasts of where they will go, but improvements to forecasts of how strong they will get have lagged. Part […]
July’s science meeting consisted of 6 presentations: Steve Guimond (NASA) – “Reviving the Imaging Wind and Rain Airborne Profiler (IWRAP) for Hurricane Research: A Case Study of Hurricane Rita (2005)” Mu-Chieh (Laura) Ko – “Preliminary Review – HWRF-B 2016 Retrospective Dataset” Robert Rogers – “The Challenge of Intensity Forecasting in Moderate Shear” Emily Paltz (Hollings […]
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 […]
June’s science meeting consisted of 7 presentations: Brad Klotz – “Guidance on Observational Undersampling over the Tropical Cyclone Lifecycle” Pete Black – “Coordinating the the Global Hawk (NASA, NOAA, EPOCH) with the HRD AIPEX module (HFP)” Jon Zawislak and Heather Holbach – “Data Display, Archival, and Legacy (DDAL)” Leon Nguyen – “Science Motivation for Analysis […]
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 […]
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 […]
Kelly Ryan presented a seminar titled “Using OSSEs to Improve NOAA G-IV Synoptic Surveillance Targeting for Tropical Cyclones”. Abstract: Aircraft reconnaissance missions remain the only means of collecting direct measurements of marine atmospheric conditions affecting tropical cyclone formation and evolution. The National Hurricane Center tasks the NOAA G-IV aircraft to sample environmental conditions that may impact […]
