HRD Monthly Science Meeting of October 2019

October’s science meeting consisted of seven presentations: Sim Aberson -  “A comparison of SAMURAI, HEDAS, and radar analyses for Hurricane Patricia (and a sneak peek into Dorian)” Lisa Bucci - "Understanding the response of tropical cyclone structure to the assimilation of synthetic wind profiles" Hui Christophersen - "TROPICS Radiance OSSE Update" Xiaomin Chen -  “A … Continue reading HRD Monthly Science Meeting of October 2019

Paper on how tropical cyclones in shear intensify published in Geophysical Research Letters

Summary: Tropical cyclones (TCs) are made up of thunderstorms (what we call convection), and these storms have strong winds moving up and down (what we call up- and downdrafts). Dry air enhances evaporative cooling (the same process that cools people when they sweat) from convective downdrafts, reducing the temperature and humidity in low levels; this … Continue reading Paper on how tropical cyclones in shear intensify published in Geophysical Research Letters

Hurricane Field Program Update — Saturday, September 28, 2019, 11pm EDT

All three NOAA hurricane hunter aircraft were airborne at the same time today, in and around Hurricane Lorenzo. The G-IV flew a successful HRD research mission in support of the NESDIS Satellite Validation experiment, flying around Lorenzo in a star pattern that sampled the environmental interaction and aligning the pattern with an NOAA-20 overpass to … Continue reading Hurricane Field Program Update — Saturday, September 28, 2019, 11pm EDT

Hurricane Field Program Update — Friday, September 27, 2019, 5pm EDT

All three aircraft, NOAA42, NOAA43, and NOAA49, are now in Barbados due to Hurricane Lorenzo.  NOAA43 spent today conducting a search-and-rescue mission for the tug supply vessel Bourbon Rhode, while NOAA49 conducted its mission as scheduled.  For tomorrow, NOAA42 will conduct another search-and-rescue mission for the tug, while NOAA43 and NOAA49 conduct research missions. NOAA49 will … Continue reading Hurricane Field Program Update — Friday, September 27, 2019, 5pm EDT

Hurricane Field Program Update — Thursday, September 26, 2019, 5pm EDT

Both NOAA43 and NOAA49 are now in Barbados prepared for missions into Hurricane Lorenzo.  NOAA49 will conduct a NESDIS Satellite Validation and Diurnal Cycle Experiment, takeoff from Barbados 0800 AST/EDT (1200 UTC).  The goal is to sample the region around Lorenzo, including the Saharan Air Layer, and regions deemed sensitive to future forecasts.  There will … Continue reading Hurricane Field Program Update — Thursday, September 26, 2019, 5pm EDT

Hurricane Field Program Update — Saturday, September 21, 2019, 11pm EDT

NOAA42 will continue to do research missions into Tropical Storm Jerry tomorrow with a 1030 AST/EDT (1430 UTC) takeoff from St. Croix that will fly the storm, then return to Lakeland. That mission will once again support the TC in Shear and Ocean Winds experiments. In addition, there is a satellite overpass (AMSR2) at approximately … Continue reading Hurricane Field Program Update — Saturday, September 21, 2019, 11pm EDT

Hurricane Field Program Update — Tuesday, September 17, 2019, 10pm EDT

NOAA49 will conduct a mission in and around Tropical Depression 10, departing Barbados at 0900 local time (1300 UTC), and returning there about 8 hours later.  The aircraft will perform a lawnmower pattern to sample the environment and a circumnavigation of the system about 120 n mi from the center.  The goal is to sample … Continue reading Hurricane Field Program Update — Tuesday, September 17, 2019, 10pm EDT