Summary: The very tall clouds that we see in satellite pictures of tropical cyclones (also known as hurricanes) fan out from the hurricane's center over the course of each day, what we call a diurnal cycle. This is because a pulse of thunderstorms and rain forms near the hurricane center each night and steadily moves … Continue reading Paper on daily changes in hurricanes released online in Geophysical Research Letters
The purpose of the season review and "hotwash" is to review the highlights from the season and discuss what went right / what went wrong / and what could be done better in the future with respect to Hurricane Field Program operations/plans/logistics, as well as provide feedback to AOC about the aircraft and their operations. … Continue reading 2019 Hurricane Field Program Season in Review and Hotwash, 13 November 2019
While the P3s are gathering data in Tropical Storm Nestor, HRD and friends celebrated the last regularly scheduled map discussion of the year with our annual Aloha Friday celebration. This year's map discussion were presented by scientists and students from HRD, the Cooperative Institute for Marine and Atmospheric Studies/University of Miami, Penn State, San Jose … Continue reading HRD celebrates Aloha Friday
At the recent American Meteorological Society Conference on Hurricanes and Tropical Meteorology, Jason presented his work with co-authors Chris Thorncroft, Chris Velden, and Brian McNoldy about the diurnal cycle of convection in hurricanes. This cycle is a dramatic outward expansion of clouds that begins moving away from the storm center each day around sunset and … Continue reading Jason Dunion’s presentation at the most recent AMS Hurricane Conference highlighted in the December 2018 issue of the AMS Bulletin
Summary: As tropical cyclones (TCs) move across the oceans, they begin to expand each day around sunset, with clouds reaching hundreds of miles from the center by the following afternoon. This daily “exhale” of the clouds is a feature of what we call the TC diurnal cycle. This study looks at the this cycle in … Continue reading Paper on the tropical cyclone diurnal cycle as seen in a forecast model published in Monthly Weather Review
HRD researchers discussed the results from the 6 P-3 and 3 G-IV missions into Hurricane Michael, AL14 (8-10 October 2018). The agenda for the discussion was: Agenda: Missions Overview (Jon Zawislak) Deployment Overview (Jon Zawislak) 20181008H1 (Kelly Ryan) 20181009H1 (Rob Rogers) 20181009N2 (Jason Dunion/ John Kaplan) 20181009H2/Coyote (Kelly Ryan) 20181010H1 (Rob Rogers/ Jon Zawislak) EMC … Continue reading HRD Debrief for missions into Hurricane Michael – 26 October 2018
HRD researchers discussed the results from the 3 P-3 and 9 G-IV missions into Hurricane Florence, AL06 (8-13 September 2018). The agenda for the discussion was: Agenda: Missions Overview (Jon Zawislak) Deployment Overview 20180908H1 (Jon Zawislak) 20180909H1 (Jon Zawislak) 20180910H1 (Jon Zawislak) NESDIS / Ocean Winds (Joe Sapp NESDIS) HRD researchers also discussed the results … Continue reading HRD Debrief for missions into Hurricane Florence, EP96 Genesis, and G-IV SAL Mission – 22 October 2018
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 … Continue reading HRD observation team monthly meeting – 18 October 2018
You can read the paper at https://journals.ametsoc.org/doi/abs/10.1175/MWR-D-18-0065.1.
Read about the satellites at https://rmets.onlinelibrary.wiley.com/doi/10.1002/qj.3290.