Mesoscale model simulation of the meteorological conditions during the 2 June 2002 Double Trouble State Park wildfire
Joseph J. Charney A C and Daniel Keyser BA USDA Forest Service, 1407 S. Harrison Road, Room 220, East Lansing, MI 48823, USA.
B Department of Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, NY 12222, USA.
C Corresponding author. Email: jcharney@fs.fed.us
International Journal of Wildland Fire 19(4) 427-448 https://doi.org/10.1071/WF08191
Submitted: 22 November 2008 Accepted: 14 August 2009 Published: 24 June 2010
Abstract
On the morning of 2 June 2002, an abandoned campfire grew into a wildfire in the Double Trouble State Park in east-central New Jersey, USA. The wildfire burned 526 ha (1300 acres) and forced the closure of the Garden State Parkway for several hours due to dense smoke. In addition to the presence of dead and dry fuels due to a late spring frost prior to the wildfire, the meteorological conditions at the time of the wildfire were conducive to erratic fire behaviour and rapid fire growth. Observations indicate the occurrence of a substantial drop in relative humidity at the surface accompanied by an increase in wind speed in the vicinity of the wildfire during the late morning and early afternoon of 2 June. The surface drying and increase in wind speed are hypothesised to result from the downward transport of dry, high-momentum air from the middle troposphere occurring in conjunction with a deepening mixed layer. This hypothesis is addressed using a high-resolution mesoscale model simulation to document the structure and evolution of the planetary boundary layer and lower-tropospheric features associated with the arrival of dry, high-momentum air at the surface coincident with the sudden and dramatic growth of the wildfire.
Additional keywords: fire weather, fire-weather forecasting.
Acknowledgements
This research was supported by Research Joint Venture Agreement 03-JV-11231300-101 between the USDA Forest Service, Northern Research Station, and the University at Albany, State University of New York. The authors thank Xindi Bian and Lesley Fusina for their help in preparing mesoscale simulations of the DTSP wildfire event. Horace Somes and John Hom were instrumental in obtaining the New Jersey Forest Fire Service (2003) fire report. The aerial photograph of the fire reproduced in Fig. 2 was provided by Bert Plante of the NJFFS.
Black TL (1994) The new NMC mesoscale Eta model: description and forecast examples. Weather and Forecasting 9, 265–278.
| Crossref | GoogleScholarGoogle Scholar |
Chen F , Dudhia J (2001) Coupling an advanced land surface–hydrology model with the Penn State–NCAR MM5 modeling system. Part I: model implementation and sensitivity. Monthly Weather Review 129, 569–585.
| Crossref | GoogleScholarGoogle Scholar |
Haines DA (1988) A lower atmosphere severity index for wildland fires. National Weather Digest 13, 23–27.
Janjić ZI (1990) The step-mountain coordinate: physical package. Monthly Weather Review 118, 1429–1443.
| Crossref | GoogleScholarGoogle Scholar |
Reisner J, Rasmussen RM , Bruintjes RT (1998) Explicit forecasting of supercooled liquid water in winter storms using the MM5 mesoscale model. Quarterly Journal of the Royal Meteorological Society 124, 1071–1107.
| Crossref | GoogleScholarGoogle Scholar |
Zhong S, In H-J, Bian X, Charney J, Heilman W , Potter B (2005) Evaluation of real-time high-resolution MM5 predictions over the Great Lakes region. Weather and Forecasting 20, 63–81.
| Crossref | GoogleScholarGoogle Scholar |
Zimet T, Martin JE , Potter BE (2007) The influence of an upper-level frontal zone on the Mack Lake wildfire environment. Meteorological Applications 14, 131–147.
| Crossref | GoogleScholarGoogle Scholar |
1 UTC = EDT + 4 h, where EDT (Eastern Daylight Time) corresponds to local time at the fire location.
