Dr. Paul D. Reasor
Meteorologist
Hurricane Research Division
phone: 305-361-4530
fax: 305-361-4402
paul.reasor@noaa.gov
NOAA's Atlantic Oceanographic and Meteorological Laboratory
4301 Rickenbacker Causeway
Miami, FL 33149
Professional InterestsDr. Reasor is a research meteorologist in the Hurricane Research Division of NOAA's Atlantic Oceanographic and Meteorological Laboratory in Miami, Florida. His primary research falls under the division's Hurricane Dynamics and Physics theme, and focuses on understanding the impact of vertical wind shear on hurricane structure and intensity change, using a combination of theory, numerical modeling and aircraft observations. He also works under the Observing Techniques theme on airborne Doppler-radar quality control and analysis techniques.
Current Research Projects
Recently Published Peer-Reviewed Papers- Fischer, M.S., R.F. Rogers, P.D. Reasor, and J.P. Dunion. An observational analysis of the relationship between tropical cyclone vortex tilt, precipitation structure, and intensity change. Monthly Weather Review, 152(1):203-225, https://doi.org/10.1175/MWR-D-23-0089.1 2024
- Shimada, U., P.D. Reasor, R.F. Rogers, M.S. Fischer, F.D. Marks, J.A. Zawislak, And J.A Zhang. Shear-relative asymmetric kinematic characteristics of intensifying hurricanes as observed by airborne Doppler radar Monthly Weather Review, 152(2):491-512, https://doi.org/10.1175/MWR-D-22-0340.1 2024
- DesRosiers, A.J., M.M. Bell, P.J. Klotzbach, M.S. Fischer, and P.D. Reasor. Observed relationships between tropical cyclone vortex height, intensity, and intensification rate. Geophysical Research Letters, 50(8):e2022GL101877, https://doi.org/10.1029/2022GL101877 2023
- Fischer, M.S., R.F. Rogers, P.D. Reasor, and J.P. Dunion. An observational analysis of the relationship between tropical cyclone vortex tilt, precipitation structure, and intensity change. Monthly Weather Review, 152(1):203-225, https://doi.org/10.1175/MWR-D-23-0089.1 2024
Ref. 4350
- Shimada, U., P.D. Reasor, R.F. Rogers, M.S. Fischer, F.D. Marks, J.A. Zawislak, And J.A Zhang. Shear-relative asymmetric kinematic characteristics of intensifying hurricanes as observed by airborne Doppler radar Monthly Weather Review, 152(2):491-512, https://doi.org/10.1175/MWR-D-22-0340.1 2024
Ref. 4375
- DesRosiers, A.J., M.M. Bell, P.J. Klotzbach, M.S. Fischer, and P.D. Reasor. Observed relationships between tropical cyclone vortex height, intensity, and intensification rate. Geophysical Research Letters, 50(8):e2022GL101877, https://doi.org/10.1029/2022GL101877 2023
Ref. 4255
- Fischer, M.S., P.D. Reasor, B.H. Tang, K.L. Corbosiero, R.D. Torn, and X. Chen. A tale of two vortex evolutions: Using a high-resolution ensemble to assess the impacts of ventilation on a tropical cyclone rapid intensification event. Monthly Weather Review, 151(1):297-320, https://doi.org/10.1175/MWR-D-22-0037.1 2023
Ref. 4175
- Zhang, J.A., R.F. Rogers, P.D. Reasor, and J. Gamache. The mean kinematic structure of the tropical cyclone boundary layer and its relationship to intensity change. Monthly Weather Review, 151(1):63-84, https://doi.org/10.1175/MWR-D-21-0335 2023
Ref. 4171
- Aksoy, A., J.J. Cione, B.A. Dahl, and P.D. Reasor. Tropical cyclone data assimilation with Coyote uncrewed aircraft system observations, very frequent cycling, and a new online quality control technique. Monthly Weather Review, 150(4):797-829, https://doi.org/10.1175/MWR-D-21-0124.1 2022
Ref. 4062
- Alvey, G.R., M. Fischer, P. Reasor, J. Zawislak, and R. Rogers. Observed processes underlying the favorable vortex repositioning early in the development of Dorian (2019). Monthly Weather Review, 150(1):253-273, https://doi.org/10.1175/MWR-D-21-0069.1 2022
Ref. 4040
- Barron, N.R., A.C. Didlake, and P.D. Reasor. Statistical analysis of convective updrafts in tropical cyclone rainbands observed by airborne Doppler radar. Journal of Geophysical Research-Atmospheres, 127(6):e2021JD035718, https://doi.org/10.1029/2021JD035718 2022
Ref. 4093
- Fischer, M.S., P.D. Reasor, R.F. Rogers, and J.F. Gamache. An analysis of tropical cyclone vortex and convective characteristics in relation to storm intensity using a novel airborne Doppler radar database. Monthly Weather Review, 150(9):2255-2278, https://doi.org/10.1175/MWR-D-21-0223.1 2022
Ref. 4113
- Zawislak, J., R.F. Rogers, S.D. Aberson, G.J. Alaka, G. Alvey, A. Aksoy, L. Bucci, J. Cione, N. Dorst, J. Dunion, M. Fischer, J. Gamache, S. Gopalakrishnan, A. Hazelton, H.M. Holbach, J. Kaplan, H. Leighton, F. Marks, S.T. Murillo, P. Reasor, K. Ryan, K. Sellwood, J.A. Sippel, and J.A. Zhang. Accomplishments of NOAA’S airborne hurricane field program and a broader future approach to forecast improvement. Bulletin of the American Meteorological Society, 103(2):E311-E338, https://doi.org/10.1175/BAMS-D-20-0174.1 2022
Ref. 3984
- Ryglicki, D.R., C.S. Velden, P.D. Reasor, D. Hodyss, and J.D. Doyle. Observations of atypical rapid intensification characteristics in Hurricane Dorian (2019). Monthly Weather Review, 149(7):2131-2150, https://doi.org/10.1175/MWR-D-20-0413.1 2021
Ref. 3960
- Fischer, M.S., R.F. Rogers, and P.D. Reasor. The rapid intensification and eyewall replacement cycles of Hurricane Irma (2017). Monthly Weather Review, 148(3):981-1004, https://doi.org/10.1175/MWR-D-19-0184.1 2020
Ref. 3763
- Guimond, S.R., P.D. Reasor, G.M. Heymsfield, and M.M. McLinden. The dynamics of vortex Rossby waves and secondary eyewall development in Hurricane Matthew (2016): New insights from radar measurements. Journal of the Atmospheric Sciences, 77(7):2349-2374, https://doi.org/10.1175/JAS-D-19-0284.1 2020
Ref. 3796
- Rogers, R.F., P.D. Reasor, J.A. Zawislak, and L.T. Nguyen. Precipitation processes and vortex alignment during intensification of a weak tropical cyclone in moderate vertical shear. Monthly Weather Review, 148(5):1899-1929, https://doi.org/10.1175/MWR-D-19-0315.1 2020
Ref. 3774
- Bowers, G.S., D.M. Smith, N.A. Kelley, G.F. Martinez-McKinney, S.A. Cummer, J.R. Dwyer, S. Heckman, R.H. Holzworth, F. Marks, P. Reasor, J. Gamache, J. Dunion, T. Richards, and H.K. Rassoul. A terrestrial gamma-ray flash inside the eyewall of Hurricane Patricia. Journal of Geophysical Research-Atmospheres, 123(10):4977-4987, https://doi.org/10.1029/2017JD027771 2018
Ref. 3535
- Didlake, A.C., P.D. Reasor, R.F. Rogers, and W.-C. Lee. Dynamics of the transition from spiral rainbands to a secondary eyewall in Hurricane Earl (2010). Journal of the Atmospheric Sciences, 75(9):2909-2929, https://doi.org/10.1175/JAS-D-17-0348.1 2018
Ref. 3547
- Wadler, J.B., R.F. Rogers, and P.D. Reasor. The relationship between spatial variations in the structure of convective bursts and tropical cyclone intensification using airborne Doppler radar. Monthly Weather Review, 146(3):761-780, https://doi.org/10.1175/MWR-D-17-0213.1 2018
Ref. 3491
- Didlake, A.C., G.M. Heymsfield, P.D. Reasor, and S.R. Guimond. Concentric eyewall asymmetries in Hurricane Gonzalo (2014) observed by airborne radar. Monthly Weather Review, 145(3):729-749, https://doi.org/10.1175/MWR-D-16-0175.1 2017
Ref. 3333
- Nguyen, L.T., R.F. Rogers, and P.D. Reasor. Thermodynamic and kinematic influences on precipitation symmetry in sheared tropical cyclones: Bertha and Cristobal (2014). Monthly Weather Review, 145(11):4423-4446, https://doi.org/10.1175/MWR-D-17-0073.1 2017
Ref. 3458
- Rogers, R.F., P.D. Reasor, and J.A. Zhang. Reply to "Comments on 'Multiscale structure and evolution of Hurricane Earl (2010) during rapid intensification.'” Monthly Weather Review, 145(4):1573-1575, https://doi.org/10.1175/MWR-D-16-0414.1 2017
Ref. 3377
- Guimond, S.R., G.M. Heymsfield, P.D. Reasor, and A.C. Didlake. The rapid intensification of Hurricane Karl (2010): New remote sensing observations of convective bursts from the Global Hawk platform. Journal of the Atmospheric Sciences, 73(9):3617-3639, https://doi.org/10.1175/JAS-D-16-0026.1 2016
Ref. 3288
- Reasor, P.D., and M.T. Montgomery. Evaluation of a heuristic model for tropical cyclone resilience. Journal of the Atmospheric Sciences, 72(5):1765-1782, https://doi.org/10.1175/JAS-D-14-0318.1 2015
Ref. 3090
- Rogers, R.F., P.D. Reasor, and J.A. Zhang. Multiscale structure and evolution of Earl (2010) during rapid intensification. Monthly Weather Review, 143(2):536-562, https://doi.org/10.1175/MWR-D-14-00175.1 2015
Ref. 3081
- Uhlhorn, E.W., B.W. Klotz, T. Vukicevic, P.D. Reasor, and R.F. Rogers. Observed hurricane wind speed asymmetries and relationships to motion and environmental shear. Monthly Weather Review, 142(3):1290-1311, https://doi.org/10.1175/MWR-D-13-00249.1 2014
Ref. 2949
- Vukicevic, T., E. Uhlhorn, P. Reasor, and B. Klotz. A novel multiscale intensity metric for evaluation of tropical cyclone intensity forecasts. Journal of the Atmospheric Sciences, 71(4):1292-1304, https://doi.org/10.1175/JAS-D-13-0153.1 2014
Ref. 2961
- Reasor, P., R. Rogers, and S. Lorsolo. Environmental flow impacts on tropical cyclone structure diagnosed from airborne Doppler radar composites. Monthly Weather Review, 141(9):2949-2969, https://doi.org/10.1175/MWR-D-12-00334.1 2013
Ref. 2887
- Rogers, R., P. Reasor, and S. Lorsolo. Airborne Doppler observations of the inner-core structural differences between intensifying and steady-state tropical cyclones. Monthly Weather Review, 141(9):2970-2991, https://doi.org/10.1175/MWR-D-12-00357.1 2013
Ref. 2888
- Rogers, R.F., S.D. Aberson, A. Aksoy, B. Annane, M. Black, J.J. Cione, N. Dorst, J. Dunion, J.F. Gamache, S.B. Goldenberg, S.G. Gopalakrishnan, J. Kaplan, B.W. Klotz, S. Lorsolo, F.D. Marks, S.T. Murillo, M.D. Powell, P.D. Reasor, K.J. Sellwood, E.W. Uhlhorn, T. Vukicevic, J.A. Zhang, and X. Zhang. NOAA’s Hurricane Intensity Forecasting Experiment (IFEX): A progress report. Bulletin of the American Meteorological Society, 94(6):859-882, https://doi.org/10.1175/BAMS-D-12-00089 2013
Ref. 2862
- Vukicevic, T., A. Aksoy, P. Reasor, S. Aberson, K. Sellwood, and F. Marks. Joint impact of forecast tendency and state error biases in Ensemble Kalman Filter data assimilation of inner-core tropical cyclone observations. Monthly Weather Review, 141(9):2992-3006, https://doi.org/10.1175/MWR-D-12-00211.1 2013
Ref. 2893
- Zhang, J.A., R.F. Rogers, P.D. Reasor, E.W. Uhlhorn, and F.D. Marks. Asymmetric hurricane boundary layer structure from dropsonde composites in relation to the environmental vertical wind shear. Monthly Weather Review, 141(11):3968-3984, https://doi.org/10.1175/MWF-D-12-00335.1 2013
Ref. 2905
- Reasor, P.D., and M. Eastin. Rapidly intensifying Hurricane Guillermo (1997), Part II: Resiliency in shear. Monthly Weather Review, 140(2):425-444, https://doi.org/10.1175/MWR-D-11-00080.1 2012
Ref. 2650
- Rogers, R., S. Lorsolo, P. Reasor, J. Gamache, and F.D. Marks. Multiscale analysis of tropical cyclone kinematic structure from airborne Doppler radar composites. Monthly Weather Review, 140(1):77-99, https://doi.org/10.1175/MWR-D-10-05075.1 2012
Ref. 2
- Guimond, S.R., M.A. Bourassa, and P.D. Reasor. A latent heat retrieval and its effects on the intensity and structure change of Hurricane Guillermo (1997). Part I: The algorithm and observations. Journal of the Atmospheric Sciences, 68(8):1549-1567, https://doi.org/10.1175/2011JAS3700.1 2011
Ref. 42
- Gamache, J.F., P.D. Reasor, H.E. Willoughby, M.L. Black, and F.D. Marks. Observations of the evolution of precipitation and kinematic structure in a hurricane as it encountered strong westerly shear. Preprints, 25th Conference on Hurricanes and Tropical Meteorology, San Diego, CA, April 29-May 3, 2002. American Meteorological Society, Boston, 547-548, 2002
Ref. 973
- Reasor, P.D., and M.T. Montgomery. Understanding the dynamics of vertically sheared hurricanes. Preprints, 25th Conference on Hurricanes and Tropical Meteorology, San Diego, CA, April 29-May 3, 2002. American Meteorological Society, Boston, 317-318, 2002
Ref. 1016
- Schecter, D.A., M.T. Montgomery, and P.D. Reasor. A theory for the vertical alignment of a quasigeostrophic vortex. Journal of the Atmospheric Sciences, 59(2):150-168, 2002
Ref. 1024
- Schecter, D.A., M.T. Montgomery, and P.D. Reasor. The vertical alignment of an incipient tropical cyclone. Preprints, 25th Conference on Hurricanes and Tropical Meteorology, San Diego, CA, April 29-May 3, 2002. American Meteorological Society, Boston, 399-400, 2002
Ref. 1025
- Reasor, P.D., and M.T. Montgomery. Three-dimensional alignment and corotation of weak, TC-like vortices via linear vortex Rossby waves. Journal of the Atmospheric Sciences, 58(16):2306-2330, 2001
Ref. 1120
- Reasor, P.D., M.T. Montgomery, F.D. Marks, and J.G. Gamache. Studies of tropical cyclone vorticity dynamics using airborne Doppler-derived wind fields. Preprints, 30th International Conference on Radar Meteorology, Munich, Germany, July 19-24, 2001. American Meteorological Society, Boston, 142-144, 2001
Ref. 1121
- Nolan, D.S., M.T. Montgomery, and P.D. Reasor. Studies of the wavenumber one instability in hurricane-like vortices. Preprints, 24th Conference on Hurricanes and Tropical Meteorology, Ft. Lauderdale, FL, May 29-June 2, 2000. American Meteorological Society, Boston, 29-30, 2000
Ref. 1229
- Reasor, P.D., and M.T. Montgomery. 3D alignment and co-rotation of weak, TC-like vortices via linear vortex Rossby waves. Preprints, 24th Conference on Hurricanes and Tropical Meteorology, Ft. Lauderdale, FL, May 29-June 2, 2000. American Meteorological Society, Boston, 268-269, 2000
Ref. 1238
- Reasor, P.D., M.T. Montgomery, F.D. Marks, and J.F. Gamache. Low-wavenumber structure and evolution of the hurricane inner core observed by airborne dual-Doppler radar. Monthly Weather Review, 128(6):1653-1680, https://doi:10.1175/1520-0493(2000)1282.0.CO;2 2000
Ref. 1239
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