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Science 24 April 1998:
Vol. 280. no. 5363, pp. 555 - 557
DOI: 10.1126/science.280.5363.555
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Reports

Intense Sub-Kilometer-Scale Boundary Layer Rolls Observed in Hurricane Fran

Joshua Wurman, * Jennifer Winslow

High-resolution observations obtained with the Doppler On Wheels (DOW) mobile weather radar near the point of landfall of hurricane Fran (1996) revealed the existence of intense, sub-kilometer-scale, boundary layer rolls that strongly modulated the near-surface wind speed. It is proposed that these structures are one cause of geographically varying surface damage patterns that have been observed after some landfalling hurricanes and that they cause much of the observed gustiness, bringing high-velocity air from aloft to the lowest observable levels. High-resolution DOW radar observations are contrasted with lower-resolution observations obtained with an operational weather radar, which underestimated peak low-level wind speeds.

School of Meteorology, University of Oklahoma, 100 East Boyd Street, Norman, OK 73019, USA.
*   To whom correspondence should be addressed. E-mail: jwurman{at}ou.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Changes in forest structure, species diversity and spatial pattern following hurricane disturbance in a Piedmont North Carolina forest, USA.
W. Xi, R. K. Peet, and D. L. Urban (2008)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)