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An Extreme Event in the Eyewall of Hurricane Felix on 2 September 2007
Filetype[PDF-2.45 MB]


Details:
  • Personal Author:
  • Description:
    During a routine penetration into Hurricane Felix late on 2 September 2007, NOAA42 encountered extreme turbulence and graupel, flight-level horizontal wind gusts of over 83ms(-1), and vertical wind speeds varying from 10 ms (1) downward to 31ms (1) upward and back to nearly 7ms (1) downward within 1 min. This led the plane to rise nearly 300m and then return to its original level within that time. Though a drop-windsonde was released during this event, the radars and data systems on board the aircraft were rendered inoperable, limiting the amount of data obtained. The feature observed during the flight is shown to be similar to that encountered during flights into Hurricanes Hugo (1989) and Patricia (2015), and by a dropwindsonde released into amisovortex in Hurricane Isabel (2003). This paper describes a unique dataset of a small-scale feature that appears to be prevalent in very intense tropical cyclones, providing new evidence for eye-eyewall mixing processes that may be related to intensity change.

  • DOI:
    http://dx.doi.org/10.1175/mwr-d-16-0364.1
  • Document Type:
    Journal Article
  • Collection(s):
    Office of Oceanic and Atmospheric Research (OAR)
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
    1. The Impact of Improved Thermistor Calibration on the Expendable Bathythermograph Profile Data
      Personal Author:
      Goes, M.; Babcock, E.; Bringas, F.; Ortner, P.; Goni, G.;
      Published Date:
      2017
      Source:
      Journal of Atmospheric and Oceanic Technology, 34(9), 1947-1961.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Expendable bathythermograph (XBT) data provide one of the longest available records of upper-ocean temperature. However, temperature and depth biases in XBT data adversely affect estimates of long-term trends of ocean heat content and, to a lesser ex...
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      Filetype[PDF - 1.92 MB]
    2. Importance of ocean mesoscale variability for air-sea interactions in the Gulf of Mexico
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      Putrasahan, D. A.; Kamenkovich, I.; Le Henaff, M.; Kirtman, B. P.;
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      2017
      Source:
      Geophysical Research Letters, 44(12), 6352-6362.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Mesoscale variability of currents in the Gulf of Mexico (GoM) can affect oceanic heat advection and air-sea heat exchanges, which can influence climate extremes over North America. This study is aimed at understanding the influence of the oceanic mes...
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    3. Environmental Suitability of Vibrio Infections in a Warming Climate: An Early Warning System
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      Semenza, J. C.; Trinanes, J.; Lohr, W.; Sudre, B.; Lofdahl, M.; Martinez-Urtaza, J.; Nichols, G. L.; Rocklov, J.;
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      2017
      Source:
      Environmental Health Perspectives, 125(10), 12.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      BACKGROUND: Some Vibrio spp. are pathogenic and ubiquitous in marine waters with low to moderate salinity and thrive with elevated sea surface temperature (SST). OBJECTIVES: Our objective was to monitor and project the suitability of marine condition...
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    4. Examination of Surface Wind Asymmetries in Tropical Cyclones. Part I: General Structure and Wind Shear Impacts
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      Klotz, B. W.; Jiang, H. Y.;
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      Source:
      Monthly Weather Review, 145(10), 3989-4009.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Because surface wind speeds within tropical cyclones are important for operational and research interests, it is vital to understand surface wind structure in relation to various storm and environmental influences. In this study, global rain-correcte...
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      Zhang, J. Z.; Baringer, M. O.; Fischer, C. J.; Hooper, V. J. A.;
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      2017
      Source:
      Scientific Reports, 7(8).
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      A recent hydrographic survey of the Florida Current at 27 degrees N revealed an enhanced upward flux of nutrients along the Florida coast. Geostrophic flow of the Gulf Stream through the narrow Florida Straits causes an uplift of the nutricline towar...
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      Hoffman, R. N.; Prive, N.; Bourassa, M.;
      Published Date:
      2017
      Source:
      Bulletin of the American Meteorological Society, 98(11), 2455-2460.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      File Type:
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      Geophysical Research Letters, 44(8), 3924-3931.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Internal gravity waves are continuously generated by deep moist convection around the globe. Satellite images suggest that tropical cyclones produce short-wavelength, high-frequency waves that radiate outward, with the wave fronts wrapped into tight ...
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    8. Quantifying the impact of basin dynamics on the regional sea level rise in the Black Sea
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      Kubryakov, A. A.; Stanichny, S. V.; Volkov, D. L.;
      Published Date:
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      Ocean Science, 13(3), 443-452.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Satellite altimetry measurements show that the magnitude of the Black Sea sea level trends is spatially uneven. While the basin-mean sea level rise from 1993 to 2014 was about 3.15 mm yr(-1), the local rates of sea level rise varied from 1.5-2.5 mm y...
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    9. Autonomous Multi-Platform Observations During the Salinity Processes in the Upper-ocean Regional Study
      Personal Author:
      Lindstrom, E. J.; Shcherbina, A. Y.; Rainville, L.; Farrar, J. T.; Centurioni, L. R.; Dong, S. F.; D'Asaro, E. A.; Eriksen, C.; Fratantoni, D. M.; Hodges, B. A.; Hormann, V.; Kessler, W. S.; Lee, C. M.; Riser, S. C.; St Laurent, L.; Volkov, D. L.;
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      2017
      Source:
      Oceanography, 30(2), 38-48.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      The Salinity Processes in the Upper-ocean Regional Study ( SPURS) aims to understand the patterns and variability of sea surface salinity. In order to capture the wide range of spatial and temporal scales associated with processes controlling salinit...
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      Personal Author:
      Caillouet, C. W.; Putman, N. F.; Shaver, D. J.; Valverde, R. A.; Seney, E. E.; Lohmann, K. J.; Mansfield, K. L.; Gallaway, B. J.; Flanagan, J. P.; Godfrey, M. H.;
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      Herpetological Conservation and Biology, 11(3), 486-496.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Kemp's Ridley Sea Turtle (Lepidochelys kempii) conservation practices permitted by the National Marine Fisheries Service (NMFS) and U.S. Fish and Wildlife Service (USFWS), under authority of the U. S. Endangered Species Act of 1973, include transloca...
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      Personal Author:
      Kourafalou, V.; Androulidakis, Y.; Le Henaff, M.; Kang, H.;
      Published Date:
      2017
      Source:
      Journal of Geophysical Research-Oceans, 122(10), 7897-7923.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Mesoscale anticyclonic eddies along the northern Cuban coast (CubANs) have been identified in the Straits of Florida, associated with the northward shift of the Florida Current (FC) and the anticyclonic curvature of the Loop Current (LC) at the weste...
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      Murphy, L. N.; Goes, M.; Clement, A. C.;
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      Paleoceanography, 32(11), 1291-1308.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Increased ice discharge in the North Atlantic is thought to cause a weakening, or collapse, of the Atlantic meridional overturning circulation (AMOC) during Heinrich events. Paleoclimate records indicate that these periods were marked by severe tropi...
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      Lee, S. K.; Volkov, D. L.; Lopez, H.; Cheon, W. G.; Gordon, A. L.; Liu, Y. Y.; Wanninkhof, R.;
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      2017
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      Journal of Geophysical Research-Oceans, 122(5), 4413-4430.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Since late 1978, Antarctic sea-ice extent in the East Pacific has retreated persistently over the Amundsen and Bellingshausen Seas in warm seasons, but expanded over the Ross and Amundsen Seas in cold seasons, while almost opposite seasonal trends ha...
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      Published Date:
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      Source:
      Journal of Atmospheric and Oceanic Technology, 34(8), 1673-1678.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Current practice is to transmit dropwindsonde data from aircraft using the TEMP-DROP format, which provides only the release location and time with 0.1 degrees latitude x 0.1 degrees longitude (about 11 km) and 1-h resolutions, respectively. The curr...
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      Personal Author:
      Alaka, G. J.; Zhang, X. J.; Gopalakrishnan, S. G.; Goldenberg, S. B.; Marks, F. D.;
      Published Date:
      2017
      Source:
      Weather and Forecasting, 32(3), 1253-1271.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      The Hurricane Weather Research and Forecasting (HWRF) Model is a dynamical model that has shown annual improvements in its tropical cyclone (TC) track forecasts as a result of various modifications. This study focuses on an experimental version of HW...
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      Personal Author:
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      Published Date:
      2017
      Source:
      Mbio, 8(6), 17.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Vibrio parahaemolyticus is the leading cause of seafood-related infections with illnesses undergoing a geographic expansion. In this process of expansion, the most fundamental change has been the transition from infections caused by local strains to ...
      File Type:
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      Rogers, R. F.; Reasor, P. D.; Zhang, J. A.;
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      Source:
      Monthly Weather Review, 145(4), 1573-1575.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      File Type:
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      Personal Author:
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      Published Date:
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      Geophysical Research Letters, 44(7), 3309-3318.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
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      Wanninkhof, R.; Trinanes, J.;
      Published Date:
      2017
      Source:
      Global Biogeochemical Cycles, 31(6), 961-974.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      An increase in global wind speeds over time is affecting the global uptake of CO2 by the ocean. We determine the impact of changing winds on gas transfer and CO2 uptake by using the recently updated, global high-resolution, cross-calibrated multiplat...
      File Type:
      Filetype[PDF - 20.62 MB]