Tropical Storm Ernesto verified water level report
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  • NOAA Program & Office:
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    "The NOAA Center for Operational Oceanographic Products and Services (COOPS) maintains a network of water level stations along the United States coastline to closely monitor water level activity. Stations from Florida to Maryland recorded elevated water levels during Tropical Storm Ernesto. All observed water level elevations are referenced to the standard chart datum Mean Lower Low Water (MLLW), based on the National Tidal Datum Epoch 1983-2001 (see Appendix 3). This report summarizes the highest observed water levels, referred to as the Storm Tide, which is the sum of the storm surge and the astronomical tide. Differences between observed water level and the predicted tide are provided (Table 1 and Fig. 2) and plotted in meters (Fig. 3 - 14). Tropical Storm Ernesto made the initial landfall on August 29 2300 GMT at Plantation Key with maximum sustained winds near 45 mph (75 km/hr) and, after crossing the Florida Bay, made the second landfall on August 30 0200 GMT over southwestern Miami-Dade County with maximum sustained winds near 45 mph (75 km/hr). Ernesto then headed northeastward and weakened to a tropical depression. After increasing strength over the Atlantic, northeast of Florida, the storm hit North Carolina near Long Beach on August 31 2300 GMT with the maximum sustained winds near 70 mph (115 km/hr), just shy of Category 1 hurricane status (Fig. 1). Water levels were slightly elevated along the Florida Keys after the initial landfall. Naples, FL recorded the highest storm tide of 1.029 m (3.376 ft) above MLLW, which was 0.180 m (0.591 ft) above the predicted tide (Fig. 11). Water levels at Key West, Vaca Key and Virginia Key were all below 1.0 m. Water levels along the North Carolina coast and in the Chesapeake Bay were elevated to about 1.0 m above predicted after the North Carolina landfall. Wrightsville Beach, NC recorded the highest storm tide 1.901m (6.237 ft), 0.931 m (3.054 ft) above the predicted tide (Fig. 3)"--Overview.
  • Content Notes:
    "Revised October 07, 2006."
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