HRD Monthly Science Meeting of April 2021

April's science meeting consisted of four presentations: Xiaomin Chen: "Boundary Layer Recovery and Precipitation Symmetrization Preceding Rapid Intensification of Tropical Cyclones under Shear" Andy Hazelton: "HAFS Ensemble of Hurricane Dorian (2019): Early Intensity and Long-Term Track" Jon Zawislak: "Accomplishments of NOAA's Airborne Hurricane Field Program and a Broader Future Approach to Forecast Improvement" Kathryn Sellwood: … Continue reading HRD Monthly Science Meeting of April 2021

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 ice particles in tropical cyclones and how they are represented in forecast models published in Geophysical Research Letters

Summary:  In order to accurately forecast the weather, models must accurately represent how liquid water and ice particles in cloud form, grow, and disappear, how big and how many of each there are. To do that, we must know how this all works in real clouds.  The NOAA P3 Hurricane Hunter Aircraft have instruments called … Continue reading Paper on ice particles in tropical cyclones and how they are represented in forecast models published in Geophysical Research Letters

HRD Monthly Science Meeting of May 2020

May's science meeting consisted of six presentations: Michael Fischer: An examination of local shear, vortex tilt, and tropical cyclone intensity change using airborne radar observations Erica Bower: Towards an Automated Approach to Analyzing Extreme Precipitation and Tropical Cyclones Hua Leighton: Ice Particle Size Distributions from Composites of Microphysics Observations Collected in Tropical Cyclones Laura Ko: … Continue reading HRD Monthly Science Meeting of May 2020

HRD Monthly Science Meeting of July 2019

July’s science meeting consisted of two presentations: Hua Leighton: Revisit of Microphysics Observation Paige Brown (Stanford University): Low-cost, Altitude Controlled Latex Balloon for Mapping Atmospheric Data The two presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2019/Science/HRD_SciMeet_20190711.zip

HRD Monthly Science Meeting of April 2018

April’s science meeting consisted of five presentations: Andrew Kren - Impact of Global Hawk dropsonde data assimilated in the NCEP GFS model during SHOUT: Hurricanes Matthew and Nicole in 2016 Hui Christophersen - Impact of Global Hawk Dropsondes on Tropical Cyclone Analyses and Forecasts Sim Aberson -  1-km HEDAS analysis of Hurricane Patricia just after peak … Continue reading HRD Monthly Science Meeting of April 2018

Paper on the difference between rapidly intensifying storms and those that don’t intensify as fast published in Journal of the Atmospheric Sciences

Summary: The main model that forecasters use to predict what a hurricane will do is the Hurricane Weather Research and Forecast (HWRF) model. Because we cannot measure what is currently happening in the hurricane exactly, we run the model many times at once with different measurements to get an idea of the different forecasts that … Continue reading Paper on the difference between rapidly intensifying storms and those that don’t intensify as fast published in Journal of the Atmospheric Sciences