One of the key aspects of NOAA’s Mission is, “To understand and predict changes in the climate, weather, oceans, and coasts...” with a long-term goal of achieving a, “Weather-ready Nation,” in which society is able to prepare for, and respond to, weather-related events. This objective specifies the need to improve the understanding and prediction of … Continue reading 2019 Hurricane Field Program Plan now available
You can read the paper at https://journals.ametsoc.org/doi/abs/10.1175/MWR-D-18-0345.1
Prof. Didlake presented a seminar titled “Asymmetric aspects of secondary eyewall formation in tropical cyclones”. A recording of the presentation is available on the anonymous ftp site: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/seminars/2019/Didlake_HRD_Seminar_20190211.mp4
You can read the paper at https://journals.ametsoc.org/doi/10.1175/MWR-D-18-0030.1.
On September 16, 1988, Hurricane Gilbert made landfall at the Mexican city of La Pesca,Tamaulipas, with winds of 125 mph (200 km/hr). It had already brought destruction upon the Yucatan peninsula and the Caribbean islands. Along the way it set a new low-pressure record that would stand for 17 years. Gilbert was a classic Cape … Continue reading 30th Anniversary of Hurricane Gilbert
In the early morning hours of August 18, 1983, Hurricane Alicia made landfall at San Luis Pass, Texas, just southwest of the Galveston area. Its 115 mph (185 km/hr) winds slammed the high rises of Houston leaving billions of dollars in damage in its wake. Like many tropical storms that form during low-activity years, Alicia … Continue reading 35th Anniversary of Hurricane Alicia
Summary: When hurricanes become strong, they sometimes form a second eyewall around the main eyewall. This second ring of strong winds and heavy rain means that strong, damaging winds could cover a larger area than before. However, it also means that the storm might temporarily weaken. Understanding and predicting this process is therefore very important. … Continue reading Paper on how eyewall replacement cycles start published in The Journal of the Atmospheric Sciences
You can read the paper at https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1002/2017JD027410.
Dr. O'Neill presented a seminar on “Diurnal gravity waves as a probe of hurricanes’ internal structure“. Abstract: Satellite observations of cloudy hurricane canopies have shown a universal, daily, wave-like feature that propagates radially outward, as far as 600 km (Dunion et al. 2014). Daytime solar heating of a hurricane’s upper eyewall is surely responsible, but … Continue reading HRD Seminar – Dr. Morgan O’Neill, T. C. Chamberlin Postdoctoral Fellow, University of Chicago – 14 November 2017