Review of aircraft missions into Hurricane Earl

NOAA conducted 20 aircraft missions into Hurricane Earl in late August and early September. The series of flights over 12 days was the longest series of flights into one system that NOAA has conducted. We recently reviewed these flights, and the slides from the review can be found here. Flight tracks of all the NOAA … Continue reading Review of aircraft missions into Hurricane Earl

NOAA Hurricane Field Program begins with flights into Potential Tropical Cyclone 2 in the Tropical Atlantic

The NOAA flight season began early this year with an operational flight into a system, known as Potential Tropical Cyclone 2, that may soon develop into a tropical depression east of the Windward Islands. The plan for the season was recently released and is available online at https://www.aoml.noaa.gov/2022-hurricane-field-program/, and a kickoff meeting to discuss plans … Continue reading NOAA Hurricane Field Program begins with flights into Potential Tropical Cyclone 2 in the Tropical Atlantic

HRD Seminar – Dr. Hua Leighton (CIMAS/HRD) – 24 March 2022

Dr. Leighton presented a seminar titled “Characterizing Raindrop Size Distributions Observed in Hurricanes”. ABSTRACT: One of the main applications of radar measurements is to estimate rainfall rate based on its power-law relationships with radar reflectivity. Different relationships have been obtained for different weather scenarios. Hurricanes, in comparison with other severe weather systems, have a much longer … Continue reading HRD Seminar – Dr. Hua Leighton (CIMAS/HRD) – 24 March 2022

HRD Monthly Science Meeting of August 2021

August's science meeting consisted of two presentations: Stanley Goldenberg - "NOAA’s August Update of the 2021 Atlantic Hurricane Season Outlook: Methodology & Forecast"  Tomislava Vukicevic - "Sensitivity of microphysics parameterization to stochastically perturbed parameters" Copies of the two presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/pub/hrd/blog/meetings/2021/Science/HRD_SciMeet_20210812.zip

Paper that reviews what we know about intensity change published in Atmosphere

This paper is an overview of what we currently know about processes important in tropical cyclone intensity change and the research that has been done during the past 15 years using aircraft data. The paper describes the eye and eyewall and how they change in time, the region close to the ocean surface where the … Continue reading Paper that reviews what we know about intensity change published in Atmosphere

AOML Keynotes for November/December 2020: The 2020 hurricane field program, cloud ice in hurricanes, hurricane gliders, and more…

Another story details the Saildrone, an autonomous vehicle that sails on the ocean surface collecting upper-ocean and near-surface weather data, that will be tested in hurricane conditions. Check out the most recent issue of AOML Keynotes here.

HRD scientists participate in the 101st American Meteorological Society Annual Meeting

The Annual Meeting is the world’s largest yearly gathering for the weather, water, and climate community. It brings together great minds from a diverse set of scientific disciplines – helping attendees make career-long professional contact and life-long friends while learning from the very top people in the atmospheric sciences. The 101st AMS Annual Meeting took place virtually … Continue reading HRD scientists participate in the 101st American Meteorological Society Annual Meeting

Paper on forecasting how raindrops, snowflakes, and ice form, grow, and fall published in Monthly Weather Review

Summary:  Tropical cyclones (TCs) are made up of clouds and thunderstorms, and thus drop large amounts of rain. The clouds are made up of cloud particles such as raindrops, snowflakes, and ice.  Knowledge of the ways these particles form, grow, and fall (what we call cloud microphysics) is very important for accurate TC rainfall forecasts, … Continue reading Paper on forecasting how raindrops, snowflakes, and ice form, grow, and fall published in Monthly Weather Review

AOML scientists assess Major Hurricane Delta’s rapid intensification

NOAA aircraft reconnaissance continued for Major Hurricane Delta on October 6, capturing the system's quick maturation overnight. P-3 and G-IV missions are scheduled every 12 hours from Lakeland, FL. The National Hurricane Center (NHC) tasked NOAA's Hurricane Hunters to identify the location and strength of the circulation center, and to survey the atmospheric conditions nearby … Continue reading AOML scientists assess Major Hurricane Delta’s rapid intensification